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Guava
Guava
Guava
Guava
Guava
Guava
Guava
Psidium guajava
Also known as : Tropical guava, Yellow guava
Hardiness Zones
Hardiness Zones
9 to 11
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care guide

Care Guide for Guava

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Watering Care
Watering Care
Details on Watering Care Watering Care
Fertilizing Care
Fertilizing Care
Details on Fertilizing Care Fertilizing Care
Pruning
Pruning
Shape the plant every 2 months during the growing season.
Details on Pruning Pruning
Soil Care
Soil Care
Sand, Acidic, Neutral, Slightly alkaline
Details on Soil Care Soil Care
Ideal Lighting
Ideal Lighting
Full sun, Partial sun
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Guava
Water
Water
Every 1-2 weeks
Hardiness Zones
Hardiness Zones
9 to 11
Planting Time
Planting Time
Summer
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Questions About Guava

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Watering Watering Watering
Pruning Pruning Pruning
Sunlight Sunlight Sunlight
Temperature Temperature Temperature
Fertilizing Fertilizing Fertilizing
What is the best way to water my Guava?
Your Guava will not be too picky about how you choose to water it. As such, you can use just about any common watering tool to moisten this plant’s soil. Watering cans, hoses, and even cups will work just fine when it is time to water your Guava. Regardless of which watering tool you use, you should typically apply the water directly to the soil. In doing so, you should ensure that you moisten all soil areas equally to give all parts of the root system the water it needs. It can help to use filtered water, as tap water can contain particles that are harmful to plants. It is also beneficial to use water that is at or slightly above room temperature, as colder or hotter water can be somewhat shocking to the Guava. However, the Guava usually responds well to any kind of water you give it.
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What should I do if I water my Guava too much or too little?
For outdoor plants, especially newly planted plants or plant seedlings, they can be prone to lack of watering. Remember that you need to keep watering enough for a few months when the tree is small or just planted. This is because once the roots are established, Guava can rely on rain most of the time. When your Guava is planted in pots, overwatering is often more likely to.When you accidentally overwater your Guava, you should be prepared to remedy the situation immediately. First, you should stop watering your plant right away to minimize the effect of your overwatering. After, you should consider removing your Guava from its pot to inspect its roots. If you find that none of the roots have developed root rot, it may be permissible to return your plant to its container. If you do discover signs of root rot, then you should trim away any roots that have been affected. You may also want to apply a fungicide to prevent further damage. Lastly, you should repot your Guava in soil that is well-draining. In the case of an underwatered Guava, simply water this plant more frequently. Underwatering is often an easy fix. If you underwater, the plant's leaves will tend to droop and dry out and fall off, and the leaves will quickly return to fullness after sufficient watering. Please correct your watering frequency as soon as underwatering occurs.
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How often should I water my Guava?
Most plants that grow naturally outdoors can be allowed to grow normally with rainfall. If your area lacks rainfall, consider giving your plants adequate watering every 2 weeks during the spring and fall. More frequent watering is needed in summer. In winter, when growth becomes slower and plants need less water, water more sparingly. Throughout the winter, you may not give it additional watering at all. If your Guava is young or newly planted, then you should water more frequently to help it establish, and mature and grow up to have more adaptable and drought tolerant plants. For potted plants, there are two main ways that you can determine how often to water your Guava. The first way is to set a predetermined watering schedule. If you choose this route, you should plan to water this plant about once every week or once every other week. However, this approach may not always work as it does not consider the unique conditions of the growing environment for your Guava . Your watering frequency can also change depending on the season. For instance, a predetermined watering schedule will likely not suffice during summer when this plant's water needs are highest. An alternative route is to set your watering frequency based on soil moisture. Typically, it is best to wait until the first two to four inches of soil, usually ⅓ to ½ depth of the pots, have dried out entirely before you give more water.
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How much water does my Guava need?
When it comes time to water your Guava, you may be surprised to find that this plant does not always need a high volume of water. Instead, if only a few inches of soil have dried since your last watering, you can support healthy growth in the Guava by giving it about five to ten ounces of water every time you water. You can also decide your water volume based on soil moisture. As mentioned above, you should note how many inches of soil have dried out between waterings. A surefire way to make sure your Guava gets the moisture it needs is to supply enough water to moisten all the soil layers that became dry since the last time you watered. If more than half of the soil has become dry, you should consider giving more water than usual. In those cases, continue adding water until you see excess water draining from your pot’s drainage holes. If your Guava is planted in an area that gets plenty of rain outdoors, it may not need additional watering. When the Guava is young or just getting established, make sure it gets 1-2 inches of rain per week. As it continues to grow and establish, it can survive entirely on rainwater and only when the weather is hot and there is no rainfall at all for 2-3 weeks, then consider giving your Guava a full watering to prevent them from suffering stress.
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How can I tell if i'm watering my Guava enough?
Overwatering is a far more common problem for the Guava, and there are several signs you should look for when this occurs. Generally, an overwatered Guava will have yellowing leaves and may even drop some leaves. Also, overwatering can cause the overall structure of your plant to shrivel and may also promote root rot. On the other hand, an underwatered Guava will also begin to wilt. It may also display leaves that are brown or brittle to the touch. Whether you see signs of overwatering or underwatering, you should be prepared to intervene and restore the health of your Guava.
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How can I water my Guava at different growth stages?
When the Guava is very young, such as when it is in a seedling stage, you will need to give it more water than you would if it were at a mature age. During the early stages of this plant’s life, it is important to keep the soil consistently moist to encourage root development. The same is true for any Guava that you have transplanted to a new growing location. Also, the Guava can develop showy flowers and fruits when you give them the correct care. If your Guava is in a flowering or fruiting phase, you will likely need to give a bit more water than you usually would to support these plant structures.
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How can I water my Guava through the seasons?
The seasonal changes will affect how often you water your Guava. Mainly, during the hottest summer months, you will likely need to increase how much you water this plant, especially if it grows in an area that receives ample sunlight. Strong summer sunlight can cause soil to dry out much faster than usual, meaning that you’ll need to water more frequently. By contrast, your Guava will need much less water during the winter, as it will not be in an active growing phase. During winter, you can get by with watering once every 2 to 3 weeks or sometimes not at all. For those growing this plant indoors, you should be somewhat wary of appliances such as air conditioners, which can cause your plant to dry out more quickly, which also calls for more frequent watering.
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What's the difference between watering my Guava indoors vs outdoors?
In some cases, your Guava may not need any supplemental watering when it grows outside and will survive on rainwater alone. However, if you live in an area of little to no rain, you should water this plant about every two weeks. If you belong to the group of people who live out of this plant's natural hardiness zone, you should grow it indoors. In an indoor setting, you should monitor your plant's soil as it can dry out more quickly when it is in a container or when it is exposed to HVAC units such as air conditioners. Those drying factors will lead you to water this plant a bit more often than if you grew it outdoors.
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Key Facts About Guava

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Attributes of Guava

Lifespan
Perennial
Plant Type
Shrub, Tree
Planting Time
Summer
Bloom Time
Spring, Summer, Fall
Harvest Time
Fall, Summer
Plant Height
8 m to 13 m
Spread
6 m to 13 m
Leaf Color
Green
Flower Size
1 cm to 2 cm
Flower Color
White
Yellow
Fruit Color
Green
Yellow
Stem Color
Green
Dormancy
Non-dormant
Leaf type
Evergreen
Ideal Temperature
20 - 38 ℃

Name story

Common guava||Guava

Symbolism

Usages

Garden Use

Trivia and Interesting Facts

Scientific Classification of Guava

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pests

Common Pests & Diseases About Guava

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Common issues for Guava based on 10 million real cases
Leaf rot
Leaf rot Leaf rot
Leaf rot
Leaf rot is a destructive fungal disease that affects Guava, causing significant deterioration of the foliage, and subsequently the overall health of the plant. This readily spreading disease can result in substantial crop losses, emphasizing the necessity for early detection and prompt intervention.
Brown spot
Brown spot Brown spot
Brown spot
This infection can cause brown spots or patches to appear on the plant.
Solutions: In minor cases of brown spot, there isn’t any need to treat the disease. However, if much of the foliage is affected and defoliation occurs, the plant will benefit from getting rid of the infection. It is recommended to start by applying organic treatment options, working up to the more potent synthetic, chemical fungicides if necessary. Organic options won’t kill the fungus, but will prevent it from spreading. Dissolve ½ teaspoon of baking soda and one teaspoon of liquid soap in a gallon of water. Using a spray bottle, spray on tops and bottoms of leaves until the mixture drips off. Repeat every two weeks until existing spots stop enlarging and new spots no longer appear. Spray a copper-based fungicidal soap on the leaves, coating the top and bottom leaf surfaces. Reapply as directed on the product label. Copper penetrates the leaf surface and prevents germination of spores so the fungus cannot spread. Apply an all-purpose fungicide to the entire plant, following the label instructions carefully.
Longhorn beetles
Longhorn beetles Longhorn beetles
Longhorn beetles
The longhorn beetle is a medium- to large-sized insect with very long antennae and strong jaws. Both its adult and larval stages gnaw on tree trunks, leaving small, round holes.
Solutions: Some longhorn beetles species are native insects, and they cause little damage. Therefore, these don't warrant control. Other longhorn beetles species are invasive pests that were recently introduced from other areas. These species can cause a great deal of damage to hardwood trees. Apply an insecticide containing imidacloprid as a soil injection or trunk injection following product instructions. This will enter into new grow and kill adults who feed on foliage. This will not help save trees that are already infested with large amounts of larvae, but it will save trees located near an infested tree. Contact an arborist for best control practices regarding infected trees. To properly control longhorn beetles, all host plants in a given area must be treated. Contact a local extension agent or state agency. Tracking the spread of longhorn beetles is a key component of their control.
Underwatering
Underwatering Underwatering
Underwatering
Leaves may wilt for a variety of reasons.
Solutions: The easiest (and most obvious) way to address underwatering is to fully hydrate the plant. However, this must be done carefully. A common mistake that many gardeners make is to douse their underwatered plants with water. This can overwhelm the roots of the plant and shock its system, something that can be even more damaging than the lack of water to begin with. Instead, water thoroughly and slowly, taking breaks to let the water slowly saturate through the soil to get to the roots. Use room temperature water, as cold water might be too much of a shock. In the future, shorten the time between waterings. A good rule of thumb is to check the soil around each plant daily. If it’s dry to at least two inches down, it’s time to water. If a container plant is repeatedly drying out very quickly, repotting into a slower-draining container might be a good idea, too.
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Leaf rot
Overview
Symptom
Causes
Treatment
Prevention
Active Period
What is Leaf rot Disease on Guava?
What is Leaf rot Disease on Guava?
Leaf rot is a destructive fungal disease that affects Guava, causing significant deterioration of the foliage, and subsequently the overall health of the plant. This readily spreading disease can result in substantial crop losses, emphasizing the necessity for early detection and prompt intervention.
Symptom Analysis
Symptom Analysis
The disease presents as brown to blackened discoloration on the leaves, often surrounded by a yellow halo. Leaves often wilt, drop prematurely, and in severe infections, the entire plant may defoliate. The disease may also extend to the fruit, affecting its quality.
What Causes Leaf rot Disease on Guava?
What Causes Leaf rot Disease on Guava?
1
Fungal pathogen
This disease is primarily caused by the fungal pathogens Phyllosticta psidii and Pestalotiopsis spp., which thrive on damp conditions and inadequate air circulation among the plant foliage.
2
Environmental factors
High humidity, prolonged leaf wetness, inadequate sunlight, and poor sanitary practices can also contribute to the onset and spread of the disease.
How to Treat Leaf rot Disease on Guava?
How to Treat Leaf rot Disease on Guava?
1
Non pesticide
Pruning: Regular pruning of the infected leaves and branches can combat the disease propagation. Ensure to dispose of these plant remains to prevent re-infection.

Planting practice: Maintain adequate spacing to facilitate proper air circulation, reducing moisture retention among leaves.
2
Pesticide
Fungicides: Topical applications of copper-based fungicides or systemic fungicides like propiconazole can effectively curb disease progression.

Biological agents: A plant-friendly Bacillus subtilis spray, a biocontrol agent, prevents disease development.
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Brown spot
plant poor
Brown spot
This infection can cause brown spots or patches to appear on the plant.
Overview
Overview
Discolored spots on the foliage of plants are one of the most common disease problems people observe. These spots are caused by fungal and bacterial diseases, with most infections related to a fungal pathogen.
Brown spot can occurs on all houseplants, flowering ornamentals, vegetable plants, and leaves of trees, bushes, and shrubs. No plants are resistant to it, and the problem is worse in warm, wet environments. It can occur at any point in the life stage as long as leaves are present.
Small brownish spots appear on the foliage and enlarge as the disease progresses. In severe cases, the plant or tree is weakened when the lesions interrupt photosynthesis or cause defoliation.
Symptom Analysis
Symptom Analysis
In most cases, brown spot only affects a small percentage of the whole plant, appearing on a small amount of the leaves. A small infection only puts minor stress on the plant. However, if left untreated and the disease progresses over numerous seasons, it will severely impact the health and productivity of the infected specimen.
  • Sporulation begins (reproduction of the fungal spores), and tiny spots appear on leaves.
  • Placement is often random and scattered as diseases are spread through raindrops.
  • May appear on lower leaves and the interior of the plant where humidity is higher.
  • Brown spots enlarge and grow large enough to touch neighboring spots to form a more prominent blotch.
  • Leaf margins may turn yellow.
  • Tiny black dots (fruiting bodies of the fungi) appear in the dead spots.
  • Blotches grow in size until the entire leaf is brown.
  • The leaf falls off the plant.
Severe Symptoms
  • Partial or complete premature defoliation
  • Reduced growth
  • Increased susceptibility to pests and other diseases
Disease Cause
Disease Cause
Brown spot, or leaf spot, is a common descriptive term given to several diseases affecting the leaves of plants and trees. Around 85% of diseases exhibiting leaf spots are due to fungus or fungus-like organisms. Sometimes brown spot is caused by a bacterial infection, or insect activity with similar symptoms.
When conditions are warm and the leaf surfaces are wet, fungal spores being transported by wind or rain land on the surface and cling to it. They do not rupture the cell walls but grow in the space between the plant plasma membrane and the plant cell wall. As the spores reproduce, they release toxins and enzymes that cause necrotic spots (i.e., dead tissue) on the leaves, allowing the fungi to consume the products released when the cells degrade.
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Longhorn beetles
plant poor
Longhorn beetles
The longhorn beetle is a medium- to large-sized insect with very long antennae and strong jaws. Both its adult and larval stages gnaw on tree trunks, leaving small, round holes.
Overview
Overview
Longhorn beetles are characterized by extremely long antennae which are often as long as, or longer, than the beetle's body. Adult longhorn beetles vary in size, shape, and coloration, depending upon the species. They may be 6 to 76 mm long. The larvae are worm-like with a wrinkled, white to yellowish body and a brown head.
Longhorn beetles are active throughout the year, but adults are most active in the summer and fall. Larvae feed on wood throughout the year.
Both larvae and adults feed on woody tissue. Some of the most susceptible species include ash, birch, elm, poplar, and willow.
If left untreated, longhorn beetles can kill trees.
Symptom Analysis
Symptom Analysis
Longhorn beetles are attracted to wounded, dying, or freshly-cut hardwood trees. Adults lay their eggs in the spring, summer, and fall on the bark of greenwood. There may be sap around egg-laying sites.
Once the eggs hatch, larvae called round-headed borers burrow into the trunk to feed. They may tunnel for one to three years depending on the wood's nutritional content. As the larvae feed, they release sawdust-like frass at the base of the tree.
Eventually, the larvae turn into pupae and then adults. When the adults emerge, they leave 1 cm holes in the bark on their way out. Adults feed on leaves, bark, and shoots of trees before laying eggs.
After a few years of being fed upon by longhorn beetles, a tree will begin losing leaves. Eventually, it will die.
Solutions
Solutions
Some longhorn beetles species are native insects, and they cause little damage. Therefore, these don't warrant control.
Other longhorn beetles species are invasive pests that were recently introduced from other areas. These species can cause a great deal of damage to hardwood trees.
  • Apply an insecticide containing imidacloprid as a soil injection or trunk injection following product instructions. This will enter into new grow and kill adults who feed on foliage. This will not help save trees that are already infested with large amounts of larvae, but it will save trees located near an infested tree.
  • Contact an arborist for best control practices regarding infected trees.
  • To properly control longhorn beetles, all host plants in a given area must be treated.
  • Contact a local extension agent or state agency. Tracking the spread of longhorn beetles is a key component of their control.
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Underwatering
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Underwatering
Leaves may wilt for a variety of reasons.
Overview
Overview
Underwatering plants is one of the quickest ways to kill them. This is something that most gardeners are well aware of. Unfortunately, knowing exactly how much water a plant needs can be tricky, especially considering that underwatering and overwatering present similar symptoms in plants.
Therefore, it’s important to be vigilant and attentive to each plants’ individual needs.
Symptom Analysis
Symptom Analysis
As mentioned earlier, overwatering and underwatering present similar symptoms in plants. These symptoms include poor growth, wilted leaves, defoliation, and brown leaf tips or margins. Ultimately, both underwatering and overwatering can lead to the death of a plant.
The easiest way to determine whether a plant has too much water or too little is to look at the leaves. If underwatering is the culprit, the leaves will look brown and crunchy, while if it’s overwatering, they will appear yellow or a pale green in color.
When this issue first begins, there may be no noticeable symptoms at all, particularly in hardy or drought-tolerant plants. However, they will begin to wilt once they start suffering from a lack of water. The edges of the plant’s leaves will become brown or curled. Soil pulling away from the edges of the planter is a telltale sign, or a crispy, brittle stem.
Prolonged underwatering can cause a plant’s growth to become stunted. The leaves might drop and the plant can be more susceptible to pest infestations, too.
Disease Cause
Disease Cause
Underwatering is caused by, quite simply, not watering plants often or deeply enough. There is a heightened risk of underwatering if any of these situations apply:
  • Extreme heat and dry weather (when growing outdoors)
  • Grow lights or indoor lighting that is too bright or intense for the type of plant
  • Using fast-draining growing media such as sand
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distribution

Distribution of Guava

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Habitat of Guava

Disturbed places, pastures, plantations, other similar habitats
Northern Hemisphere
South Hemisphere

Distribution Map of Guava

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Native
Cultivated
Invasive
Potentially invasive
Exotic
No species reported
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More Info on Guava Growth and Care

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Basic Care Guide
Common Pests & Diseases
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Lighting
Full sun
Guava necessitates copious amounts of solar radiation to ensure healthy growth and this demand heightens during its fruit-bearing stage. Originating from zones with abundant sunshine, overexposure has little detrimental impact, but a lacking can impede growth and diminish fruit production.
Best Sunlight Practices
Transplant
3 m
The perfect time to transplant guava is during early to mid-spring, as it's the season for optimum growth and establishment. Choose a sunny location with well-draining soil, and gently loosen the root ball while transplanting. Keep it watered to encourage healthy root system development. Happy gardening!
Transplant Techniques
Temperature
0 - 43 ℃
In its native growth environment, guava primarily thrives in tropical and subtropical regions with temperatures ranging from 20 to 38 ℃ (68 to 100.4 ℉). Generally, it prefers warm temperatures and is susceptible to frost damage. During the cooler winter months, it may benefit from protection or being brought inside if located in a cooler climate.
Temp for Healthy Growth
Pruning
Spring
Native to tropical regions, guava is prized for its sweet fruit and medicinal leaves. Optimal pruning should remove dead or diseased wood, thin crowded branches, and shape the canopy for better air circulation. Prune in early spring to promote healthy new growth. Regular pruning enhances fruit production and allows for effective pest management, ensuring a robust and productive guava. Keeping cuts clean and to a minimum protects the plant's health.
Pruning techniques
Propagation
Spring, Summer
Guava is typically propagated through cuttings, particularly during warmer seasons such as spring and summer. Propagation is moderately easy, with successful signs including new leaf growth. Ensure cuttings have healthy, mature leaves for increased success rates.
Propagation Techniques
Overwinter
0 - 43 ℃
Guava thrives in tropical climates, naturally resistant to mild frosts. Its leaves toughen in response to cooler conditions, but it's not suited to harsh winters. For gardeners in temperate zones, over-winter care requires moving guava indoors or providing generous mulching and frost covers to safeguard against plunging temperatures. Consistent care can imbue your winter with the sweet scent and taste of the tropics.
Winter Techniques
Leaf rot
Leaf rot is a destructive fungal disease that affects Guava, causing significant deterioration of the foliage, and subsequently the overall health of the plant. This readily spreading disease can result in substantial crop losses, emphasizing the necessity for early detection and prompt intervention.
Read More
Brown blotch
Brown spot is a disease that significantly impacts Guava's yield and quality. It is characterized by conspicuous, irregular dark brown spots appearing mostly on fruits. If unchecked, it can decrease the plant's productivity drastically, causing economic loss.
Read More
Caterpillars
Caterpillar infestation is a damaging disease to Guava plants with potential harm to foliage, fruit, and overall yield. These leaf-eating pests obstruct plant growth damaging the green tissues, which eventually affects photosynthesis and causes severe defoliation.
Read More
Non-base branch withering
Non-base branch withering is a pathological condition impacting Guava, causing branches to wither and decay, weakening the structure and overall productivity of the plant. The disease tends to worsen during periods of high humidity and in poorly drained soils.
Read More
Wilting
Wilting in Guava is a critical disease causing an overall decline in plant health. It affects the plant's ability to absorb and transport water and nutrients, ultimately leading to its death if untreated. The bacterium Ralstonia solanacearum is the primary causative agent.
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Interveinal yellowing
Interveinal yellowing is a challenging disease that affects several plants, including Guava. The disease usually causes the parts between the veins of the leaves to turn yellow, often leading to a decline in yield and health of the plant.
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Leaf malformation
Leaf malformation is a plant disease that adversely affects Guava, causing serious disfigurement of leaves and potential decline in fruit production. This condition contributes to overall weakness of Guava, making it susceptible to other infections.
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Leaf white mold
Leaf White Mold is a fungal disease primarily affecting the leaves of the Guava, leading to potential fruit yield losses. The disease manifests as white, powdery mold on the leaves, affecting plant vigor and overall health.
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Black mold
Black mold, a fungi classified as Stachybotrys chartarum, is a pathogen that profoundly affects Guava. It infects the leaves, stems, and fruits, decimating the plant's vitality and reducing overall output. Quick identification and control are vital to prevent extensive damage.
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Plant dried up
The disease 'Plant dried up' affects the vitality and productivity of Guava, leading to dried leaves and shrivelled fruits. If allowed to persist, it can cause significant yield loss and plant death.
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Fruit rot
Fruit rot is a fungal disease negatively impacting Guava's growth and production. It causes severe fruit damage, leading to crop losses. Prompt and apt disease management is crucial for controlling its spread and impacts.
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Yellow edges
Yellow edges is a disease impacting the health of Guava. It is characterized by yellowing and death of leaf edges. This disease hampers growth, fruit yield, and causes plant death in severe cases.
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Leaf blight
Leaf blight is a destructive disease affecting Guava, caused by the fungus Pestalotiopsis psidii. It causes severe leaf drop, wilting, reduced fruit quality, and yield, and may prove to be lethal if not controlled in time.
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Leafminer stripe
Leafminer Stripe is a severe disease affecting Guava, causing visible stripe patterns and inhibiting fruit growth. The disease typically originates from insect infestations and is known for its rapid spread and persistent damage the plant's structure and growth potential.
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Whole leaf withering
Whole leaf withering is a pathological condition affecting Guava plants. The disease leads to large-scale wilting and subsequent death of the plant, severely impacting its growth and fruit production.
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Underwatering yellow
Underwatering in Guava is a non-pathogenic stress condition that happens when the plant's water consumption exceeds intake, causing negative impact on growth, yield, and overall health. Season, environmental conditions, and care regimen affect the plant's susceptibility to underwatering.
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Leaf yellowing
Leaf yellowing, a prevalent symptom often leading to a severe disease in Guava, indicates a possible infection by fungal, bacterial, or viral pathogens. Leading to declining vigor and potentially even death, the seriousness and impact largely depend on the underlying causes and effective management.
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Lack of fertilizer
Lack of fertilizer is a nutritional deficiency that impacts the health of Guava plants, causing stunted growth, pale leaves, and a significant drop in fruit productivity. It's not a disease but a condition affecting the plant's overall vigor and yielding ability.
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Dark blotch
Dark blotch, affecting Guava, is a fungal disease caused by 'Cercospora psidii'. It significantly hinders the plant's growth by causing dark lesions on leaves. It's vital for growers to control and prevent it to ensure optimal growth.
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Feng shui direction
Southwest
The guava plant is strongly revered for its purported energy-balancing qualities in Feng Shui. Particularly, when situated in the Southwest, it's suggested to enhance the Earth energy in that direction. However, results might vary based on individual perceptions and specific domestic environments.
Fengshui Details
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Common coconut palm
Common coconut palm
Common coconut palm (Cocos nucifera) is a broadleaf evergreen native to the Western Pacific tropical islands. In the United States, common coconut palm grows in Hawaii, Southern Florida, and Texas. This tree produces coconuts.
Asiatic dayflower
Asiatic dayflower
The asiatic dayflower is an annual creeper that is classified as an invasive species in many areas. Known for its beautiful blooms that only last one day, the asiatic dayflower has spread throughout much of the world. It is used in Japan and China to create blue and green pigments.
Wax begonia
Wax begonia
Begonia cucullata is a native of South America. It is often used as a ground cover and also does well in containers. The blossoms of wax begonia can be red, white, or pink. In some states like Florida and Georgia, wax begonia is considered an invasive species due to its tendency to reseed prolifically in the right conditions.
Poison ivy
Poison ivy
In pop culture, poison ivy is a symbol of an obnoxious weed because, despite its unthreatening looks, it gives a highly unpleasant contact rash to the unfortunate person who touches it. Still, it is commonly eaten by many animals, and the seeds are a favorite with birds. The leaves turn bright red in fall. Its sister species, Western poison ivy (Toxicodendron rydbergii), is not considered to be invasive in the United States, but is noxious in Australia and New Zealand.
Pokeweed
Pokeweed
Although its berries look juicy and tempting, the fruits and the root of pokeweed are toxic and should not be eaten. Pokeweed is considered a pest species by farmers but is nevertheless often grown as an ornamental plant. Its berries can be made into pokeberry ink as well.
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Guava
Guava
Guava
Guava
Guava
Guava
Guava
Psidium guajava
Also known as: Tropical guava, Yellow guava
Hardiness Zones
Hardiness Zones
9 to 11
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Questions About Guava

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Watering Watering Watering
Pruning Pruning Pruning
Sunlight Sunlight Sunlight
Temperature Temperature Temperature
Fertilizing Fertilizing Fertilizing
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Key Facts About Guava

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Attributes of Guava

Lifespan
Perennial
Plant Type
Shrub, Tree
Planting Time
Summer
Bloom Time
Spring, Summer, Fall
Harvest Time
Fall, Summer
Plant Height
8 m to 13 m
Spread
6 m to 13 m
Leaf Color
Green
Flower Size
1 cm to 2 cm
Flower Color
White
Yellow
Fruit Color
Green
Yellow
Stem Color
Green
Dormancy
Non-dormant
Leaf type
Evergreen
Ideal Temperature
20 - 38 ℃
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Name story

Common guava||Guava

Symbolism

Usages

Garden Use

Trivia and Interesting Facts

Scientific Classification of Guava

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pests

Common Pests & Diseases About Guava

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Common issues for Guava based on 10 million real cases
Leaf rot
Leaf rot Leaf rot Leaf rot
Leaf rot is a destructive fungal disease that affects Guava, causing significant deterioration of the foliage, and subsequently the overall health of the plant. This readily spreading disease can result in substantial crop losses, emphasizing the necessity for early detection and prompt intervention.
Learn More About the Leaf rot more
Brown spot
Brown spot Brown spot Brown spot
This infection can cause brown spots or patches to appear on the plant.
Solutions: In minor cases of brown spot, there isn’t any need to treat the disease. However, if much of the foliage is affected and defoliation occurs, the plant will benefit from getting rid of the infection. It is recommended to start by applying organic treatment options, working up to the more potent synthetic, chemical fungicides if necessary. Organic options won’t kill the fungus, but will prevent it from spreading. Dissolve ½ teaspoon of baking soda and one teaspoon of liquid soap in a gallon of water. Using a spray bottle, spray on tops and bottoms of leaves until the mixture drips off. Repeat every two weeks until existing spots stop enlarging and new spots no longer appear. Spray a copper-based fungicidal soap on the leaves, coating the top and bottom leaf surfaces. Reapply as directed on the product label. Copper penetrates the leaf surface and prevents germination of spores so the fungus cannot spread. Apply an all-purpose fungicide to the entire plant, following the label instructions carefully.
Learn More About the Brown spot more
Longhorn beetles
Longhorn beetles Longhorn beetles Longhorn beetles
The longhorn beetle is a medium- to large-sized insect with very long antennae and strong jaws. Both its adult and larval stages gnaw on tree trunks, leaving small, round holes.
Solutions: Some longhorn beetles species are native insects, and they cause little damage. Therefore, these don't warrant control. Other longhorn beetles species are invasive pests that were recently introduced from other areas. These species can cause a great deal of damage to hardwood trees. Apply an insecticide containing imidacloprid as a soil injection or trunk injection following product instructions. This will enter into new grow and kill adults who feed on foliage. This will not help save trees that are already infested with large amounts of larvae, but it will save trees located near an infested tree. Contact an arborist for best control practices regarding infected trees. To properly control longhorn beetles, all host plants in a given area must be treated. Contact a local extension agent or state agency. Tracking the spread of longhorn beetles is a key component of their control.
Learn More About the Longhorn beetles more
Underwatering
Underwatering Underwatering Underwatering
Leaves may wilt for a variety of reasons.
Solutions: The easiest (and most obvious) way to address underwatering is to fully hydrate the plant. However, this must be done carefully. A common mistake that many gardeners make is to douse their underwatered plants with water. This can overwhelm the roots of the plant and shock its system, something that can be even more damaging than the lack of water to begin with. Instead, water thoroughly and slowly, taking breaks to let the water slowly saturate through the soil to get to the roots. Use room temperature water, as cold water might be too much of a shock. In the future, shorten the time between waterings. A good rule of thumb is to check the soil around each plant daily. If it’s dry to at least two inches down, it’s time to water. If a container plant is repeatedly drying out very quickly, repotting into a slower-draining container might be a good idea, too.
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Leaf rot
Overview
Symptom
Causes
Treatment
Prevention
Active Period
What is Leaf rot Disease on Guava?
What is Leaf rot Disease on Guava?
Leaf rot is a destructive fungal disease that affects Guava, causing significant deterioration of the foliage, and subsequently the overall health of the plant. This readily spreading disease can result in substantial crop losses, emphasizing the necessity for early detection and prompt intervention.
Symptom Analysis
Symptom Analysis
The disease presents as brown to blackened discoloration on the leaves, often surrounded by a yellow halo. Leaves often wilt, drop prematurely, and in severe infections, the entire plant may defoliate. The disease may also extend to the fruit, affecting its quality.
What Causes Leaf rot Disease on Guava?
What Causes Leaf rot Disease on Guava?
1
Fungal pathogen
This disease is primarily caused by the fungal pathogens Phyllosticta psidii and Pestalotiopsis spp., which thrive on damp conditions and inadequate air circulation among the plant foliage.
2
Environmental factors
High humidity, prolonged leaf wetness, inadequate sunlight, and poor sanitary practices can also contribute to the onset and spread of the disease.
How to Treat Leaf rot Disease on Guava?
How to Treat Leaf rot Disease on Guava?
1
Non pesticide
Pruning: Regular pruning of the infected leaves and branches can combat the disease propagation. Ensure to dispose of these plant remains to prevent re-infection.

Planting practice: Maintain adequate spacing to facilitate proper air circulation, reducing moisture retention among leaves.
2
Pesticide
Fungicides: Topical applications of copper-based fungicides or systemic fungicides like propiconazole can effectively curb disease progression.

Biological agents: A plant-friendly Bacillus subtilis spray, a biocontrol agent, prevents disease development.
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Brown spot
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Brown spot
This infection can cause brown spots or patches to appear on the plant.
Overview
Overview
Discolored spots on the foliage of plants are one of the most common disease problems people observe. These spots are caused by fungal and bacterial diseases, with most infections related to a fungal pathogen.
Brown spot can occurs on all houseplants, flowering ornamentals, vegetable plants, and leaves of trees, bushes, and shrubs. No plants are resistant to it, and the problem is worse in warm, wet environments. It can occur at any point in the life stage as long as leaves are present.
Small brownish spots appear on the foliage and enlarge as the disease progresses. In severe cases, the plant or tree is weakened when the lesions interrupt photosynthesis or cause defoliation.
Symptom Analysis
Symptom Analysis
In most cases, brown spot only affects a small percentage of the whole plant, appearing on a small amount of the leaves. A small infection only puts minor stress on the plant. However, if left untreated and the disease progresses over numerous seasons, it will severely impact the health and productivity of the infected specimen.
  • Sporulation begins (reproduction of the fungal spores), and tiny spots appear on leaves.
  • Placement is often random and scattered as diseases are spread through raindrops.
  • May appear on lower leaves and the interior of the plant where humidity is higher.
  • Brown spots enlarge and grow large enough to touch neighboring spots to form a more prominent blotch.
  • Leaf margins may turn yellow.
  • Tiny black dots (fruiting bodies of the fungi) appear in the dead spots.
  • Blotches grow in size until the entire leaf is brown.
  • The leaf falls off the plant.
Severe Symptoms
  • Partial or complete premature defoliation
  • Reduced growth
  • Increased susceptibility to pests and other diseases
Disease Cause
Disease Cause
Brown spot, or leaf spot, is a common descriptive term given to several diseases affecting the leaves of plants and trees. Around 85% of diseases exhibiting leaf spots are due to fungus or fungus-like organisms. Sometimes brown spot is caused by a bacterial infection, or insect activity with similar symptoms.
When conditions are warm and the leaf surfaces are wet, fungal spores being transported by wind or rain land on the surface and cling to it. They do not rupture the cell walls but grow in the space between the plant plasma membrane and the plant cell wall. As the spores reproduce, they release toxins and enzymes that cause necrotic spots (i.e., dead tissue) on the leaves, allowing the fungi to consume the products released when the cells degrade.
Solutions
Solutions
In minor cases of brown spot, there isn’t any need to treat the disease. However, if much of the foliage is affected and defoliation occurs, the plant will benefit from getting rid of the infection. It is recommended to start by applying organic treatment options, working up to the more potent synthetic, chemical fungicides if necessary.
Organic options won’t kill the fungus, but will prevent it from spreading.
  1. Dissolve ½ teaspoon of baking soda and one teaspoon of liquid soap in a gallon of water. Using a spray bottle, spray on tops and bottoms of leaves until the mixture drips off. Repeat every two weeks until existing spots stop enlarging and new spots no longer appear.
  2. Spray a copper-based fungicidal soap on the leaves, coating the top and bottom leaf surfaces. Reapply as directed on the product label. Copper penetrates the leaf surface and prevents germination of spores so the fungus cannot spread.
  3. Apply an all-purpose fungicide to the entire plant, following the label instructions carefully.
Prevention
Prevention
Like many other diseases, it is easier to prevent brown spot than cure it, and this is done through cultural practices.
  • Clear fall leaves from the ground before winter to minimize places where fungi and bacteria can overwinter.
  • Maintain good air movement between plants through proper plant spacing.
  • Increase air circulation through the center of plants through pruning.
  • Thoroughly clean all pruning tools after working with diseased plants.
  • Never dispose of disease plant material in a compost pile.
  • Avoid overhead watering to keep moisture off of the foliage.
  • Keep plants healthy by providing adequate sunlight, water, and fertilizer.
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Longhorn beetles
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Longhorn beetles
The longhorn beetle is a medium- to large-sized insect with very long antennae and strong jaws. Both its adult and larval stages gnaw on tree trunks, leaving small, round holes.
Overview
Overview
Longhorn beetles are characterized by extremely long antennae which are often as long as, or longer, than the beetle's body. Adult longhorn beetles vary in size, shape, and coloration, depending upon the species. They may be 6 to 76 mm long. The larvae are worm-like with a wrinkled, white to yellowish body and a brown head.
Longhorn beetles are active throughout the year, but adults are most active in the summer and fall. Larvae feed on wood throughout the year.
Both larvae and adults feed on woody tissue. Some of the most susceptible species include ash, birch, elm, poplar, and willow.
If left untreated, longhorn beetles can kill trees.
Symptom Analysis
Symptom Analysis
Longhorn beetles are attracted to wounded, dying, or freshly-cut hardwood trees. Adults lay their eggs in the spring, summer, and fall on the bark of greenwood. There may be sap around egg-laying sites.
Once the eggs hatch, larvae called round-headed borers burrow into the trunk to feed. They may tunnel for one to three years depending on the wood's nutritional content. As the larvae feed, they release sawdust-like frass at the base of the tree.
Eventually, the larvae turn into pupae and then adults. When the adults emerge, they leave 1 cm holes in the bark on their way out. Adults feed on leaves, bark, and shoots of trees before laying eggs.
After a few years of being fed upon by longhorn beetles, a tree will begin losing leaves. Eventually, it will die.
Solutions
Solutions
Some longhorn beetles species are native insects, and they cause little damage. Therefore, these don't warrant control.
Other longhorn beetles species are invasive pests that were recently introduced from other areas. These species can cause a great deal of damage to hardwood trees.
  • Apply an insecticide containing imidacloprid as a soil injection or trunk injection following product instructions. This will enter into new grow and kill adults who feed on foliage. This will not help save trees that are already infested with large amounts of larvae, but it will save trees located near an infested tree.
  • Contact an arborist for best control practices regarding infected trees.
  • To properly control longhorn beetles, all host plants in a given area must be treated.
  • Contact a local extension agent or state agency. Tracking the spread of longhorn beetles is a key component of their control.
Prevention
Prevention
  • Keeping trees healthy, uninjured, and unstressed will help prevent beetle infestation. Water trees appropriately, giving neither too much nor too little.
  • Check with local tree companies about which tree species have fewer problems.
  • Avoid moving firewood as this can introduce exotic longhorn beetles.
  • Routine spraying of persistent, broad-spectrum insecticides will help prevent re-infestation of previously affected trees or infestation of unaffected trees.
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Underwatering
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Underwatering
Leaves may wilt for a variety of reasons.
Overview
Overview
Underwatering plants is one of the quickest ways to kill them. This is something that most gardeners are well aware of. Unfortunately, knowing exactly how much water a plant needs can be tricky, especially considering that underwatering and overwatering present similar symptoms in plants.
Therefore, it’s important to be vigilant and attentive to each plants’ individual needs.
Symptom Analysis
Symptom Analysis
As mentioned earlier, overwatering and underwatering present similar symptoms in plants. These symptoms include poor growth, wilted leaves, defoliation, and brown leaf tips or margins. Ultimately, both underwatering and overwatering can lead to the death of a plant.
The easiest way to determine whether a plant has too much water or too little is to look at the leaves. If underwatering is the culprit, the leaves will look brown and crunchy, while if it’s overwatering, they will appear yellow or a pale green in color.
When this issue first begins, there may be no noticeable symptoms at all, particularly in hardy or drought-tolerant plants. However, they will begin to wilt once they start suffering from a lack of water. The edges of the plant’s leaves will become brown or curled. Soil pulling away from the edges of the planter is a telltale sign, or a crispy, brittle stem.
Prolonged underwatering can cause a plant’s growth to become stunted. The leaves might drop and the plant can be more susceptible to pest infestations, too.
Disease Cause
Disease Cause
Underwatering is caused by, quite simply, not watering plants often or deeply enough. There is a heightened risk of underwatering if any of these situations apply:
  • Extreme heat and dry weather (when growing outdoors)
  • Grow lights or indoor lighting that is too bright or intense for the type of plant
  • Using fast-draining growing media such as sand
Solutions
Solutions
The easiest (and most obvious) way to address underwatering is to fully hydrate the plant. However, this must be done carefully. A common mistake that many gardeners make is to douse their underwatered plants with water. This can overwhelm the roots of the plant and shock its system, something that can be even more damaging than the lack of water to begin with.
Instead, water thoroughly and slowly, taking breaks to let the water slowly saturate through the soil to get to the roots. Use room temperature water, as cold water might be too much of a shock.
In the future, shorten the time between waterings. A good rule of thumb is to check the soil around each plant daily. If it’s dry to at least two inches down, it’s time to water. If a container plant is repeatedly drying out very quickly, repotting into a slower-draining container might be a good idea, too.
Prevention
Prevention
Always check the soil before watering. If the top inch of soil feels moist, though not wet, the watering is perfect. If it’s dry, water it immediately. If it feels soggy, you avoid watering until it dries out a bit more.
Also, make sure the lighting is sufficient for the species. Plants grow faster and need more water when there is intense light or lots of heat. Being aware of these conditions and modifying them, if possible, is a good way to prevent underwatering. Many container plants are potted in soil mixtures mean to be well-draining. Adding materials that retain moisture, like compost or peat moss, can also prevent these symptoms.
Other tips to prevent underwatering include:
  • Choose pots with adequately-sized drainage holes
  • Avoid warm temperatures
  • Use large pots with additional soil (these take longer to dry out)
  • Avoid terracotta pots, which lose water quickly
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distribution

Distribution of Guava

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Habitat of Guava

Disturbed places, pastures, plantations, other similar habitats
Northern Hemisphere
South Hemisphere

Distribution Map of Guava

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Native
Cultivated
Invasive
Potentially invasive
Exotic
No species reported
care_scenes

More Info on Guava Growth and Care

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Basic Care Guide
Common Pests & Diseases
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Leaf rot
Leaf rot
Leaf rot is a destructive fungal disease that affects Guava, causing significant deterioration of the foliage, and subsequently the overall health of the plant. This readily spreading disease can result in substantial crop losses, emphasizing the necessity for early detection and prompt intervention.
 detail
Brown blotch
Brown blotch
Brown spot is a disease that significantly impacts Guava's yield and quality. It is characterized by conspicuous, irregular dark brown spots appearing mostly on fruits. If unchecked, it can decrease the plant's productivity drastically, causing economic loss.
 detail
Caterpillars
Caterpillars
Caterpillar infestation is a damaging disease to Guava plants with potential harm to foliage, fruit, and overall yield. These leaf-eating pests obstruct plant growth damaging the green tissues, which eventually affects photosynthesis and causes severe defoliation.
 detail
Non-base branch withering
Non-base branch withering is a pathological condition impacting Guava, causing branches to wither and decay, weakening the structure and overall productivity of the plant. The disease tends to worsen during periods of high humidity and in poorly drained soils.
 detail
Wilting
Wilting in Guava is a critical disease causing an overall decline in plant health. It affects the plant's ability to absorb and transport water and nutrients, ultimately leading to its death if untreated. The bacterium Ralstonia solanacearum is the primary causative agent.
 detail
Interveinal yellowing
Interveinal yellowing is a challenging disease that affects several plants, including Guava. The disease usually causes the parts between the veins of the leaves to turn yellow, often leading to a decline in yield and health of the plant.
 detail
Leaf malformation
Leaf malformation is a plant disease that adversely affects Guava, causing serious disfigurement of leaves and potential decline in fruit production. This condition contributes to overall weakness of Guava, making it susceptible to other infections.
 detail
Leaf white mold
Leaf White Mold is a fungal disease primarily affecting the leaves of the Guava, leading to potential fruit yield losses. The disease manifests as white, powdery mold on the leaves, affecting plant vigor and overall health.
 detail
Black mold
Black mold, a fungi classified as Stachybotrys chartarum, is a pathogen that profoundly affects Guava. It infects the leaves, stems, and fruits, decimating the plant's vitality and reducing overall output. Quick identification and control are vital to prevent extensive damage.
 detail
Plant dried up
The disease 'Plant dried up' affects the vitality and productivity of Guava, leading to dried leaves and shrivelled fruits. If allowed to persist, it can cause significant yield loss and plant death.
 detail
Fruit rot
Fruit rot is a fungal disease negatively impacting Guava's growth and production. It causes severe fruit damage, leading to crop losses. Prompt and apt disease management is crucial for controlling its spread and impacts.
 detail
Yellow edges
Yellow edges is a disease impacting the health of Guava. It is characterized by yellowing and death of leaf edges. This disease hampers growth, fruit yield, and causes plant death in severe cases.
 detail
Leaf blight
Leaf blight is a destructive disease affecting Guava, caused by the fungus Pestalotiopsis psidii. It causes severe leaf drop, wilting, reduced fruit quality, and yield, and may prove to be lethal if not controlled in time.
 detail
Leafminer stripe
Leafminer Stripe is a severe disease affecting Guava, causing visible stripe patterns and inhibiting fruit growth. The disease typically originates from insect infestations and is known for its rapid spread and persistent damage the plant's structure and growth potential.
 detail
Whole leaf withering
Whole leaf withering is a pathological condition affecting Guava plants. The disease leads to large-scale wilting and subsequent death of the plant, severely impacting its growth and fruit production.
 detail
Underwatering yellow
Underwatering in Guava is a non-pathogenic stress condition that happens when the plant's water consumption exceeds intake, causing negative impact on growth, yield, and overall health. Season, environmental conditions, and care regimen affect the plant's susceptibility to underwatering.
 detail
Leaf yellowing
Leaf yellowing, a prevalent symptom often leading to a severe disease in Guava, indicates a possible infection by fungal, bacterial, or viral pathogens. Leading to declining vigor and potentially even death, the seriousness and impact largely depend on the underlying causes and effective management.
 detail
Lack of fertilizer
Lack of fertilizer is a nutritional deficiency that impacts the health of Guava plants, causing stunted growth, pale leaves, and a significant drop in fruit productivity. It's not a disease but a condition affecting the plant's overall vigor and yielding ability.
 detail
Dark blotch
Dark blotch, affecting Guava, is a fungal disease caused by 'Cercospora psidii'. It significantly hinders the plant's growth by causing dark lesions on leaves. It's vital for growers to control and prevent it to ensure optimal growth.
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Lighting
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Indoor
Indoor
Outdoor
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Requirements
Full sun
Ideal
Above 6 hours sunlight
Partial sun
Tolerance
About 3-6 hours sunlight
Watch how sunlight gracefully moves through your garden, and choose spots that provide the perfect balance of light and shade for your plants, ensuring their happiness.
Essentials
Guava necessitates copious amounts of solar radiation to ensure healthy growth and this demand heightens during its fruit-bearing stage. Originating from zones with abundant sunshine, overexposure has little detrimental impact, but a lacking can impede growth and diminish fruit production.
Preferred
Tolerable
Unsuitable
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Artificial lighting
Indoor plants require adequate lighting for optimal growth. When natural sunlight is insufficient, particularly in winter or in less sunny spaces, artificial lights offer a vital solution, promoting faster, healthier growth.
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Indoor plants require adequate lighting for optimal growth. When natural sunlight is insufficient, particularly in winter or in less sunny spaces, artificial lights offer a vital solution, promoting faster, healthier growth.
1. Choose the right type of artificial light: LED lights are a popular choice for indoor plant lighting because they can be customized to provide the specific wavelengths of light that your plants need.
Full sun plants need 30-50W/sq ft of artificial light, partial sun plants need 20-30W/sq ft, and full shade plants need 10-20W/sq ft.
2. Determine the appropriate distance: Place the light source 12-36 inches above the plant to mimic natural sunlight.
3. Determine the duration: Mimic the length of natural daylight hours for your plant species. most plants need 8-12 hours of light per day.
Important Symptoms
Symptoms of Insufficient Light in %s
Guava thrives in full sunlight but can tolerate partial shade. However, when cultivated indoors during winter, it's often placed in rooms with insufficient lighting, leading to easily noticeable symptoms of light deficiency.
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(Symptom details and solutions)
Small leaves
New leaves may grow smaller in size compared to the previous ones once they have matured.
Leggy or sparse growth
The spaces between leaves or stems of your guava may become longer, resulting in a thin and stretched-out appearance. This can make the plant look sparse and weak, and it may easily break or lean due to its own weight.
Faster leaf drop
When plants are exposed to low light conditions, they tend to shed older leaves early to conserve resources. Within a limited time, these resources can be utilized to grow new leaves until the plant's energy reserves are depleted.
Slower or no new growth
Guava enters a survival mode when light conditions are poor, which leads to a halt in leaf production. As a result, the plant's growth becomes delayed or stops altogether.
Lighter-colored new leaves
Insufficient sunlight can cause leaves to develop irregular color patterns or appear pale. This indicates a lack of chlorophyll and essential nutrients.
Solutions
1. To ensure optimal growth, gradually move plants to a sunnier location each week, until they receive at least 6 hours of direct sunlight daily. Use a south-facing window and keep curtains open during the day for maximum sunlight exposure and nutrient accumulation.2. To provide additional light for your plant, consider using artificial light if it's large or not easily movable. Keep a desk or ceiling lamp on for at least 8 hours daily, or invest in professional plant grow lights for ample light.
Symptoms of Excessive light in %s
Guava thrives in full sun exposure but can also tolerate partial shade. They have a remarkable resilience to intense sunlight, and symptoms of sunburn may not be easily visible.
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(Symptom details and solutions)
Chlorosis
Chlorosis is a condition where the plant's leaves lose their green color and turn yellow. This is due to the breakdown of chlorophyll from excessive sunlight, which negatively affects the plant's ability to photosynthesize.
Sunscald
Sunscald occurs when the plant's leaves or stems are damaged by intense sunlight exposure. It appears as pale, bleached, or necrotic areas on the plant tissue and can reduce the plant's overall health.
Leaf Curling
Leaf curling is a symptom where leaves curl or twist under extreme sunlight conditions. This is a defense mechanism used by the plant to reduce its surface area exposed to sunlight, minimizing water loss and damage.
Wilting
Wilting occurs when a plant loses turgor pressure and its leaves and stems begin to droop. Overexposure to sunlight can cause wilting by increasing the plant's water loss through transpiration, making it difficult for the plant to maintain adequate hydration.
Leaf Scorching
Leaf scorching is a symptom characterized by the appearance of brown, dry, and crispy edges or patches on leaves due to excessive sunlight. This can lead to a reduction in photosynthetic capacity and overall plant health.
Solutions
1. Move your plant to the optimal position where it can receive abundant sunlight but also have some shade. An east-facing window is an ideal choice as the morning sunlight is gentler. This way, your plant can enjoy ample sunlight while reducing the risk of sunburn.2. It is recommended to trim off any completely dehydrated or withered parts of the plant.
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Temperature
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Indoor
Indoor
Outdoor
Choose a site here for personalized care tips.
Requirements
Ideal
Tolerable
Unsuitable
Just like people, each plant has its own preferences. Learn about your plants' temperature needs and create a comforting environment for them to flourish. As you care for your plants, your bond with them will deepen. Trust your intuition as you learn about their temperature needs, celebrating the journey you share. Lovingly monitor the temperature around your plants and adjust their environment as needed. A thermometer can be your ally in this heartfelt endeavor. Be patient and gentle with yourself as you explore your plants' temperature needs. Cherish your successes, learn from challenges, and nurture your garden with love, creating a haven that reflects the warmth of your care.
Essentials
In its native growth environment, guava primarily thrives in tropical and subtropical regions with temperatures ranging from 20 to 38 ℃ (68 to 100.4 ℉). Generally, it prefers warm temperatures and is susceptible to frost damage. During the cooler winter months, it may benefit from protection or being brought inside if located in a cooler climate.
Regional wintering strategies
Guava is extremely heat-loving, and any cold temperatures can cause harm to it. In the autumn, it is recommended to bring outdoor-grown Guava indoors and place it near a bright window, but it should be kept at a certain distance from heaters. Maintaining temperatures above {Suitable_growth_temperature_min} during winter is beneficial for plant growth. Any temperatures approaching {Tolerable_growing_temperature_min} are detrimental to the plant.
Important Symptoms
Symptoms of Low Temperature in Guava
Guava prefers warm temperatures and is not tolerant of low temperatures. It thrives best when the temperature is above {Suitable_growth_temperature_min}. During winter, it should be kept above {Tolerable_growing_temperature_min}. When the temperature falls below {Limit_growth_temperature}, the leaves may lighten in color. After frost damage, the color gradually turns brown or black, and symptoms such as wilting and drooping may occur.
Solutions
Trim off the frost-damaged parts. Immediately move indoors to a warm environment for cold protection. Choose a spot near a south-facing window to place the plant, ensuring ample sunlight. Additionally, avoid placing the plant near heaters or air conditioning vents to prevent excessive dryness in the air.
Symptoms of High Temperature in Guava
During summer, Guava should be kept below {Suitable_growth_temperature_max}. When the temperature exceeds {Tolerable_growing_temperature_max}, the color of the leaves becomes lighter, and the plant becomes more susceptible to sunburn.
Solutions
Trim away the sunburned and dried-up parts. Move the plant to a location that provides shade from the midday and afternoon sun. Water the plant in the morning and evening to keep the soil moist.
Discover information about plant diseases, toxicity, weed control and more.
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