A Comprehensive Guide to
Safe Biological Pest Control
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This tiny predaceous beetle is being developed for whitefly control. It works best at high population levels of whitefly, higher than most growers would find acceptable within a crop. The adults must feed on at least 10 whitefly eggs per day in order to continue their own egg production. Both the adult and larval stages feed on whiteflies. Introduction rates range from 1 Delphastus per infested plant or 5-10 per 10 square feet. Delphastus alone will not be able to reduce whitefly populations to acceptable levels. A program involving Encarsia as well will likely be necessary.