Tandon, P. L.; Bakthavatsalam, N. Electro-Physiological and Olfactometric Responses of <I>Helicoverpa armigera</I> (Hubner) (Lepidoptera: Noctuidae) and <I>Trichogramma chilonis</I> Ishii (Hymenoptera: Trichogrammatidae) to Volatiles of Trap Crops -<I>Tagetes erecta</I> Linnaeus and <I>So. JBC 2005, 19, 9-16.