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Effect of Malathion Analogs upon Resistant and Susceptible Culex Tarsalis Mosquitoes

W. C. Dauterman and F. Matsumura
Science
New Series, Vol. 138, No. 3541 (Nov. 9, 1962), pp. 694-695
Stable URL: http://www.jstor.org/stable/1709755
Page Count: 2
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Abstract

The effects of minor variations in the malathion molecule upon the resistance of Culex tarsalis have been examined. By replacing the carboethoxy group by carbomethoxy, the 60-fold resistance to malathion is abolished. The results confirm the importance of carboxyesterase action in determining susceptibility to malathion.

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