The toxicity of deltamethrin to pine beauty moth Panolis flammea schiff. and its parasitoids Barichneumon bilunulatus grav. and Rictichneumon pachymerus katz

The toxicity of deltamethrin to larvae of the pine beauty moth, Panolis flammea Schiff., and its two parasitoid species, Barichneumon bilunulatus Grav. and Rictichneumon pachymerus Katz., was evaluated. Two methods, exposure of insects on treated filter paper and topical application of insecticide, were used. Results showed that larvae of the pest were many times more susceptible to deltamethrin than imagines of either of the two parasitoid species.