Naturalis-L for Control of the Cotton Insect Complex in the Lower Rio Grande Valley of Texas

James E. Wright


The insect specific fungus, Beauveria bassiana (Balsamo) Vuillemin, ATCC 74040, formulated as Naturalis-L, was highly effective for control of cotton insects in an integrated pest management system (IPM) for cotton in the Lower Rio Grande Valley of Texas in 1993. Naturalis-L effectively controlled early season populations of the boll weevil, Anthonomus grandis Boheman, and cotton fleahopper, Pseudatomoscelis seriatus (Reuter). Populations of beneficials were significantly higher in fields treated with Naturalis-L than in fields treated with conventional insecticides. Full season control of insects was obtained for the third consecutive year in fields treated with Naturalis-L only. The lint yield in the IPM program with Naturalis-L was 996 lbs per acre, with Naturalis-L only, 851 lbs and conventional insecticides, 951 lbs.

Reprinted from Proceedings of the 1994 Beltwide Cotton Conferences pp. 1098 - 1101
©National Cotton Council, Memphis TN

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Document last modified Sunday, Dec 6 1998