Neotropical Entomology (2007) 36, 471-472

Heleno Maziero, Jerson V.C. Guedes, Nelson D. Kruse and Juliano R. Farias (2007)
Plantas infestantes hospedeiras de Rhopalosiphum rufiabdominalis (Sasaki) (Hemiptera: Aphididae) em áreas de cultivo de arroz irrigado
[Host weeds of Rhopalosiphum rufiabdominalis (Sasaki) (Hemiptera: Aphididae) in areas of irrigated rice]
Neotropical Entomology 36 (3), 471-472
Abstract: Rhopalosiphum rufiabdominalis (Sasaki) is an insect of world-wide distribution that damages irrigated rice. From September, 2004 to February, 2005, nymphs and adults of this aphid were collected in several host weeds of rice farms in Alegrete, Quaraí and Uruguaiana, located in Western of State of Rio Grande do Sul, and Restinga Seca, in Central region of this State, Brazil. The insect was found in the root of Andropogon bicornis (West Indian foxtail), Echinochloa colona (jungle rice), Oryza sativa (volunteer rice and red-rice), Paspalum sp. (paspalum) and Soliva pterosperma (lawn burweed).
(The abstract is excluded from the Creative Commons licence and has been copied with permission by the publisher.)
(original language: Portuguese)
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Research topic(s) for pests/diseases/weeds:
environment - cropping system/rotation
general biology - morphology - evolution

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Pest and/or beneficial records:

Beneficial	Pest/Disease/Weed	Crop/Product	Country	Quarant.
	Echinochloa colona (weed)	Rice (Oryza)	Brazil (south)
	Rhopalosiphum rufiabdominale	Rice (Oryza)	Brazil (south)
	Andropogon bicornis (weed)	Rice (Oryza)	Brazil (south)
	Oryza (weeds)	Rice (Oryza)	Brazil (south)
	Soliva sessilis (weed)	Rice (Oryza)	Brazil (south)