Management and Control of Cabbage Maggot, Delia Radicum, in Cauliflower, III.

This report summarizes the third year of research to improve management of cabbage maggot. The cabbage maggot, Delia radicum, is a chronic pest problem in Willamette Valley cauliflower. Current management of this pest relies exclusively on prophylactic chemical applications; usually with Lorsban. This study has included investigation of cabbage maggot life cycles, evaluation of treatment practices and evaluation of sampling techniques for making management decisions.