Abstract
POPULATIONS of the peach–potato aphid, Myzus persicae (Sulzer), that have survived exposure to organophosphorus insecticides are sometimes received for identification in the British Museum (Natural History). Microscopical examination reveals that resistant populations have better developed lateral abdominal tubercles on segments 2–4 than susceptible populations. The resistance of Myzus persicae to demeton-methyl is not stable, a twenty-five-fold resistance being acquired during seven clonal generations exposed to it and lost during thirty generations not exposed1. Experiments being done at Rothamsted Experimental Station (C. J. B., in preparation) made it possible to study the morphology of aphids from susceptible and resistant aphid populations and to compare them with each other and with susceptible members of a previously resistant population.
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EASTOP, V., BANKS, C. Suspected Insecticide Resistance Mechanism in the Peach–Potato Aphid. Nature 225, 970–971 (1970). https://doi.org/10.1038/225970a0
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DOI: https://doi.org/10.1038/225970a0
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