APTNESS OF INSECTICIDES (BACILLUS THURINGIENSIS AND CARBOFURAN) WITH ENDOPHYTIC BEAUVERIA BASSIANA, IN SUPPRESSING LARVAL POPULATIONS OF THE EUROPEAN CORN BORER

摘要

Research was conducted in 1989 and 1990 to determine if Beauveria bassiana in combination with Bacillus thuringiensis or carbofuran is an effective tactic for season-long management of the European corn borer, Ostrinia nubilalis. A granular formulation of Beauveria bassiana was applied to corn at whorl stage (V6) and/or at pollen-shed stage (R1) corn. Bacillus thuringiensis or carbofuran was then applied to the same plants.