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Journal of the Department of Agriculture, Western Australia, Series 4

Keywords

Lupins, Myzus persicae, Insecticide resistance, Testing, Western Australia

First Page Number

43

Last Page Number

46

Abstract

Confirmation of insecticide resistance in green peach aphid in Western Australia's lupin crops means farmers will have to choose insecticides much more carefully to control this pest. Resistance within an aphid population varies, and when resistant aphids are no longer exposed to insecticides, they may revert back to being susceptible in as little as one generation. Furthermore, when these revertant populations are exposed to the same insecticides in the future, resistance quickly reoccurs. In this article, the authors discuss a test to determine the extent of insecticide resistance in green peach aphid and how to manage it.

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