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Toxicity of Several Insecticides to Catolaccus Grandis (Burks) and Selection with Malathion

Dan A. Wolfenbarger and Shoil M. Greenberg


 
ABSTRACT

LC50's of oxymal and malathion to male Catolaccus grandis (Burks) were 513 and 57 fold greater than LC50 to female parasites, respectively. LC50's of profenofos to female parasites was 13 fold greater than LC50 of male parasites. Endosulfan was comparatively nontoxic to both sexes. We were unable to select for resistance to malathion against either sex during 16 months.



Reprinted from Proceedings of the 1997 Beltwide Cotton Conferences pp. 1310 - 1312
©National Cotton Council, Memphis TN

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Document last modified Sunday, Dec 6 1998