Project Summaries

12-381  Project Manager: P. F. O'Leary

EVALUATION OF INSECTICIDE OVERSPRAYS FOR CONTROL OF BOLLWORMS IN TRANSGENIC BT COTTON: TX

Stephen Biles, Texas AgriLife Extension Service

A trial was conducted to determine if any benefit is gained by treating Bt cotton for caterpillars and if yield is enhanced by insecticide alone without pest present. Field trials were conducted at nine sites across Texas on Bollgard II or Widestrike cotton once during the first two weeks of bloom.  Few bollworms and minimal feeding injury was detected in the trial areas.  This project was not able to determine if any benefit was gained by treating Bt cotton for caterpillars because few caterpillars were found in the test areas.  Combined data from nine locations did not show yield response to insecticide application.  The results of this research project indicate yield was not enhanced by insecticide applications in the absence of caterpillar pests.

 

Project Year: 2012
 

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