• Korean journal of applied entomology
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• v.28 no.1
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• pp.23-27
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• 1989

The green peach aphid(Myzus pericae Sulzer) was selected over 20 generations with cypermethrin and pirmicarb, respectively. The resulting resistant strains were tested to inverting-ate the development of insecticide resistance and cross-resistance to some insecticides in the laboratory. The development of insecticide resistance against green peach aphid at the 20th selected generation was greatly varied with the insecticides: 20.5 fold for cypermethrin and 3.2 fold for pirimicarb compared with the parent strain. The cypermethrin selected strain exhibited cross resistance to acephate and pirimicarb, and pirimicarb selected strain to acephate and cypermethrin, respectively. Demeton-S-methyl, however, has not been shown cross-resistance by the selected strains.

• The Korean Journal of Pesticide Science
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• v.14 no.4
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• pp.415-420
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• 2010

This study investigated effects of different sound frequencies on development and insecticide susceptibility of the green peach aphid, Myzus persicae. Under a constant sound intensity (95 dB), different frequency (0-5,000 Hz) sounds were treated on entire developmental period of the aphids. With increase of sound frequencies, nymphal to adult development of the aphids showed significant retardation and the females exhibited a significant decrease in fecundity. The greatest disrupting effects were induced by treatment of 5,000 Hz, which also caused marked change in protein expression of the aphids analysed by two dimensional electrophoresis. Sound frequencies above 2,000 Hz significantly increased susceptibility of the aphids against imidacloprid. This study clearly suggest that there is a stress sound, which can be sensed by M. persicae and induces its physiological alteration.