Susceptibility of Several Insecticides on Three Aphids


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Differences in susceptibility of several organophosphate, carbamate and pyrethroid insecticides to three aphids species were determined by leaf-dipping and spray methods. The insects tested were the apterous adults of the green peach aphid (Myzus persicae), cotton aphid (Aphis gossypii) and soybean aphid (Aphis glycines). The comparison of LC50 levels was indicated as follows: (1) The susceptibility to insecticides tested were greatly varied with the test methods. (2) The leaf-dipping method is more recommendable than the spray method for c insecticide screening with aphids. It was easier, more accurate and less variable than the latter. (3) The susceptibility to insecticides was greatly varied between the aphid species. Soybean aphid was more susceptible to the insecticides than green peach aphid and cotton aphid. Exceptionally, pirimicarb was not effective on the cotton aphid.
Originating text in Korean.
Citation: Kim, G. H., Shim, W. K., Ahn, J. W., Cho, K. Y. (1987). Susceptibility of Several Insecticides on Three Aphids. Korean Journal of Plant Protection, 26(2), 83-88.