Kairomones of Heliothis armigera and Corcyra cephalonica and their influence on the parasitic potential of Trichogramma chilonis (Trichogrammatidae: Hymenoptera).

Kairomones from moth scales tend to influence the parasitic potential by Trichogramma chilonis Ishii. Hexatriacontane, pentacosane, heptadecane, docosane and 2, 6, l0-dodecatrienal-3, 7, 11-trimethyl were identified from the active moth scale extract of Heliothis armigera Hubner (its natural host) and Corcyra cephalonica Stainton (a laboratory host). The significance of an array of compounds from moth scales with kairomonal activity for manipulating entomophagous insects in biological control programmes is discussed.