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Tandon, P. L.; Bakthavatsalam, N. Influence of Sunflower Genotypes on Parasitization Efficiency of <I>Trichogramma chilonis</I> Ishii (Hymenoptera: Trichogrammatidae) on <I>Helicoverpa armigera</I> (Hiibner)(Lepidoptera: Noctuidae). JBC 2010, 18, 129-134.