Richardia brasiliensis (white-eye (Australia))
Identity
- Preferred Scientific Name
- Richardia brasiliensis Gomes (1801)
- Preferred Common Name
- white-eye (Australia)
- Other Scientific Names
- Richardia pilosa Ruia & Pav. (1802)
- Richardia rosea (St Hil.) Schult. (1829)
- Richardsonia brasiliensis (Gomez) Hayne (1822)
- Richardsonia emetica Mart.
- Richardsonia rosea St Hil.
- Richardsonia scabra St Hil. (1827)
- Spermacoce hexandra A. Rich.
- International Common Names
- EnglishMexican cloverMexican Richardiatropical Richardia
- Spanishgarro (Cuba)hierba de la arana (Bolivia)hierba del pollo (Argentina)ponte en cruzyerba del pato (Argentina)
- Local Common Names
- Brazilbrazil pusleypoaiapoaia branca
- IndonesiaBrazil callalilyceuli anjinggoletrakgoletrak beutijemprahjemprakjukut babijukut bagongsusukam
- South Africameksikaanse klawermeksikaanse Richardiatropiese Richardia
- Thailandpursleyyaa thaa phra
- USA/HawaiiRichardsonia
- EPPO code
- RCHBR (Richardia brasiliensis)
Pictures
Distribution
Host Plants and Other Plants Affected
Host | Host status | References |
---|---|---|
Allium cepa (onion) | Main | |
Arachis hypogaea (groundnut) | Main | |
Cajanus cajan (pigeon pea) | Main | |
Camellia sinensis (tea) | Other | |
Capsicum annuum (bell pepper) | Other | |
Carya illinoinensis (pecan) | Other | |
Cinchona officinalis (Cinchona tree) | Other | |
Citrullus lanatus (watermelon) | Other | |
Citrus | Main | |
Coffea arabica (arabica coffee) | Main | |
Glycine soja | Main | |
Gossypium (cotton) | Main | |
Helianthus annuus (sunflower) | Main | |
Hevea brasiliensis (rubber) | Main | |
Ipomoea batatas (sweet potato) | Other | |
Malus domestica (apple) | Other | |
Medicago sativa (lucerne) | Main | |
Nicotiana tabacum (tobacco) | Other | |
Oryza sativa (rice) | Main | |
Phaseolus vulgaris (common bean) | Main | |
Philodendron | Other | |
Prunus persica (peach) | Other | |
Prunus salicina (Japanese plum) | Other | |
Saccharum officinarum (sugarcane) | Main | |
Solanum lycopersicum (tomato) | Other | Macharia et al. (2016) |
Solanum tuberosum (potato) | Main | |
Sorghum bicolor (sorghum) | Other | |
Stylosanthes gracile | Other | |
Vitis (grape) | Unknown | Vergaças et al. (2018) |
Vitis vinifera (grapevine) | Other | |
Zea mays (maize) | Main |
Prevention and Control
Cultural Control
Both R. brasiliensis and R. scabra are readily controlled by any form of cultivation which either removes the taproots from the soil or separates the shoots from the roots; however such cultivation usually initiates another flush of germination of dormant seeds in the soil (Fleck et al., 1989; Rafey and Prasad, 1995).
Both R. brasiliensis and R. scabra are readily controlled by any form of cultivation which either removes the taproots from the soil or separates the shoots from the roots; however such cultivation usually initiates another flush of germination of dormant seeds in the soil (Fleck et al., 1989; Rafey and Prasad, 1995).
Chemical Control
Due to the variable regulations around (de-)registration of pesticides, we are for the moment not including any specific chemical control recommendations. For further information, we recommend you visit the following resources:
•
EU pesticides database (http://ec.europa.eu/food/plant/pesticides/eu-pesticides-database/)
•
PAN pesticide database (www.pesticideinfo.org)
•
Your national pesticide guide
Impact
Both R. brasiliensis and R. scabra are low-growing mostly annual weeds, and are usually of only minor to medium importance. They compete for light, moisture and nutrients (Wells et al., 1986), and although they may be serious in vegetables and other slow and low growing crops, they are usually shaded out below taller growing crops such as maize and cassava. R. brasiliensis can reduce tiller numbers and sugar content of sugarcane if not controlled in the early months after planting (Blanco et al., 1984).R. brasiliensis is a nuisance in lawns and gardens, and has also invaded and replaced native vegetation, as well as being a crop seed contaminant in South Africa (Wells et al., 1986). In Zimbabwe, it has been shown to severely affect establishment and forage production by legumes (Grant, 1977), and in Brazil its uncontrolled presence during the early stages of growth can adversely affect sunflower yields (Fleck et al., 1989). The species is also an alternative host for Fusarium roseum f.sp. cerealis [Fusarium culmorum] (Reis, 1982), for Thanatephorus cucumeris (Dubey, 1994) in Brazil and is an alternate host for the root knot nematode, Meloidogyne javanica (Everaarts, 1981).
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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: 18 December 2021
Language
English
Authors
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