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Association Between Bagrada hilaris Density and Feeding Damage in Broccoli: Implications for Pest Management

J. C. Palumbo and Y. Carrière

November 2015


Bagrada hilaris is a serious economic pest of brassica crops in Arizona and southern California. Feeding damage on broccoli can result in excessive seedling mortality and, on established plants, in malformed plants which are not commercially marketable. A reliable sampling technique for estimating adult density is lacking. We analyzed data from 18 insecticide trials in plots planted to broccoli to determine if estimates of fresh feeding damage on broccoli plants can be used to forecast B. hilaris densities.


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