Delphastus Psyllius - Knowledgebase Question

Name: Caroline Carver-koerner
Fremont, CA
Avatar for sdsurfgirl
Question by sdsurfgirl
August 8, 2000
As an alternative to poison I bought some delphastus to help control my whitefly problem. In recent weeks I have seen a new bug mingling with the whitefly an delphastus.
It is the same tiny size as the delphastus but it is brown and it's not as shiny. Do you know what it might be?

Answer from NGA
August 8, 2000
Delphastus has recently become widely available, and is definitely a beneficial insect. The tiny predaceous beetles work best at high population levels of whitefly as 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. I suspect that the smaller insects you're seeing are the offspring of your original release of delphastus.

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