Abstract
A field experiment was conducted to assess the effect of insecticides along with conventional ones like monocrotophos 36 SL, a plant product, nimbecidine and an antibiotic, tetracycline against leafhopper, Orosius albicinctus Distant which is a vector of sesame phyllody in sesame. The results revealed that all the systemic insecticides were superior. Among these treatments T1 (imidacloprid 600FS seed treatment + imidacloprid 17.8 SL spraying.) and T5 (imidacloprid 600FS seed treatment + lambda cyhalothrin 5 EC spraying) were highly superior. Seed yields were highest in all the insecticidal treatments compared to control, and among treatments T1 and T5 recorded maximum seed yields (4.47 and 4.41q/ha, respectively). The results on benefit cost ratio revealed that highest benefit cost ratio was recorded in treatment T5 (imidacloprid 600FS seed treatment + lambda cyhalothrin 5 EC spraying).
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