Conyza sumatrensis (tall fleabane)
Identity
- Preferred Scientific Name
- Conyza sumatrensis (Retz.) E. Walker
- Preferred Common Name
- tall fleabane
- Other Scientific Names
- Conyza albida Willd. ex Sprengel
- Conyza floribunda (H.B. & K.)
- Coyza bonariensis var. microcephala (Cabrera) Cabrera
- Erigeron floribundus (Sch. Bip.)
- Erigeron sumatrensis Retz. (1789)
- International Common Names
- Englishbroad-leaved fleabanefleabaneGuernsey fleabane
- Frencherigeron blanc
- Local Common Names
- Japanooarechinogiku
- Perupichana
- EPPO code
- ERIFL (Erigeron floribundus)
Pictures
Infestation
Infestation, showing growth form.
©Sheldon Navie
Flowering plant
Flowering plant of C. sumatrensis.
©Chris Parker/Bristol, UK
Seed heads
Mature seed heads.
©Sheldon Navie
Seed heads
Mature and immature seed heads.
©Sheldon Navie
Comparison
Comparison between Conyza sumatrensis (arrowed) seed heads and C. bonariensis.
©Sheldon Navie
Comparison
Comparison between Conyza sumatrensis foliage (arrowed) and C. bonariensis.
©Sheldon Navie
Distribution
Host Plants and Other Plants Affected
| Host | Host status | References |
|---|---|---|
| Camellia sinensis (tea) | Main | |
| Solanum lycopersicum (tomato) | Unknown | Kashina et al. (2002) |
| Solanum tuberosum (potato) | Main | |
| turfgrasses | Other |
Prevention and Control
Cultural Control
Noting the requirement for light for the germination of seed of Conyza spp., mulching is likely to be an effective means of control. A greenhouse experiment showed that the use of forestry plantation residues did indeed reduce the germination of C. sumatrensis seeds, with medium-grade residues proving more effective than either coarse or fine grades (Schumann et al., 1995). Also, flooding in paddy fields had a marked effect in reducing C. sumatrensis populations, in contrast to the effects caused by no-tillage or even mulching (Mineta et al., 1997).
Chemical Control
Kostermans et al. (1987) indicate susceptibility of seedlings to 2,4-D and MCPA. See also the datasheets on C. bonariensis and C. canadensis for more information. Resistance of C. sumatrensis to paraquat is reported from Japan (Yamasue et al., 1992), Malaysia (Itoh et al., 1992) and from South-East Asia in general (Itoh, 1994).
Impact
Specific impacts from competition in annual and perennial crops have not been assessed in economic terms. See also the datasheets on C. bonariensis and C. canadensis for more information. C. sumatrensis is a known host for Tomato yellow leaf curl virus in Spain (Jordá et al., 2001) and Turnip mosaic virus in Zimbabwe (Chivasa et al., 2002).
Information & Authors
Information
Published In
Copyright
Copyright © CABI. CABI is a registered EU trademark. This article is published under a Attribution-NonCommercial-NoDerivatives 4.0 International (CC BY-NC-ND 4.0)
History
Published online: 17 November 2021
Language
English
Authors
Metrics & Citations
Metrics
SCITE_
Citations
Export citation
Select the format you want to export the citations of this publication.
EXPORT CITATIONSExport Citation
View Options
View options
Get Access
Login Options
Check if you access through your login credentials or your institution to get full access on this article.