Close-up of the parasites Aphytis sp. (left) and Encarsia perniciosi (upper right) and a male San Jose scale, Diaspidiotus perniciosus (middle), caught in a sticky trap baited with the pheromone of San Jose scale.

Two Aphytis sp., male scale, Encarsia perniciosi in sticky trap, ca 5X; collected at Kearney Agricultural Center Credit: Jack Kelly Clark — Close-up of the parasites Aphytis sp. (left) and Encarsia perniciosi (upper right) and a male San Jose scale, Diaspidiotus perniciosus (middle), caught in a sticky trap baited with the pheromone of San Jose scale. Credit: Jack Kelly Clark