Distribution and Abundance of Insecticide Resistant Greenbugs (Homoptera: Aphididae) and Validation of a Bioassay to Assess Resistance

Laboratory bioassays were conducted to determine the toxicity of four insecticides (ethyl parathion, chlorpyrifos, malathion, and carbofuran) to insecticide-susceptible and resistant populations of greenbug, Schizaphis graminum (Rondani). These bioassays were used to develop and validate a discrimin...

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Bibliographic Details
Published in:Journal of economic entomology 2001-04, Vol.94 (2), p.547-551
Main Authors: WILDE, G. E., SHUFRAN, R. A., KINDLER, S. D., BROOKS, H. L., SLODERBECK, P. E.
Format: Article
Language:English
Subjects:
Animals
Aphids
Biological and medical sciences
Biological Assay - standards
Carbofuran
Chemical control
Chlorpyrifos
Control
Demography
Electrophoresis, Polyacrylamide Gel
Fundamental and applied biological sciences. Psychology
greenbug
Insect Control
Insect Proteins - analysis
insecticide
Insecticide Resistance
INSECTICIDE RESISTANCE AND RESISTANCE MANAGEMENT
Insecticides
Malathion
Parathion
Phytopathology. Animal pests. Plant and forest protection
Population Density
Protozoa. Invertebrates
resistance
sorghum
wheat
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Summary:Laboratory bioassays were conducted to determine the toxicity of four insecticides (ethyl parathion, chlorpyrifos, malathion, and carbofuran) to insecticide-susceptible and resistant populations of greenbug, Schizaphis graminum (Rondani). These bioassays were used to develop and validate a discriminating concentration for assessing insecticide resistance in greenbug populations in the field. Samples from wheat and sorghum in two states, Oklahoma and Kansas, indicated that insecticide resistance persists in greenbug populations over a large area at a low level.
ISSN:0022-0493
1938-291X
0022-0493
DOI:10.1603/0022-0493-94.2.547