Potentiating effect of Bacillus thuringiensis subsp. kurstaki on pathogenicity of entomopathogenic bacterium Xenorhabdus nematophila K1 against diamondback moth (Lepidoptera: Plutellidae).

Xenorhabdus nematophila is the symbiotic bacterium of an entomopathogenic nematode, Steinernema carpocapsae. When the nematode enters a target insect, the symbiotic bacteria are released into the hemocoel. After inducing host immunosuppression, the bacteria multiply in the hemocoel and cause fatal septicemia.