ABSTRACT
A strain of an insect specific fungus, Beauveria bassiana (Balsamo) Vuillemin, FTCC 74040, formulated as Naturalis-L, was effective for season-long control of insects in cotton. When combined with a Bacillus thuringensis (Bt), yields were equal to that produced with conventional insecticides. When Naturalis-L was used in the early-season boll weevil control, followed by combinations of low-rate selective insecticides and Bt, control was equal to that of conventional insecticides. Preservation of beneficial insects was the collateral benefit of Naturalis-L use in early-season boll weevil control.
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