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ABSTRACT: Plant extracts were used to assess their insecticidal activities on Epilachna beetle on bitter gourd. The experiment consisted of six different treatments 1.Control 2. Malathion 57EC 2ml/1L of water; 3.Tephrosia leaf extract 20 g fresh leaf/100 ml of water; 4. Neem oil sprayed at 3 ml oil/1 L of water 5. Neem leaf extract at 20 g fresh leaf/100ml of water; 6. Bishkatali leaf extracts 20 g fresh leaf/100ml of water and there were three replications. The botanical extracts showed varying effect on Epilachna beetle population. Among the plant extract Tephrosia leaf extract showed higher activity against the Epilachna beetle. On the other hand, the highest insect infestation was observed in untreated control and Bishkatali and neem oil was 2nd and 3rd in the rank. Hence, it may be suggested that Tephrosia leaf extract, Bishkathali and Neem would be treated as a ecofriendly pest control method.
Keywords: Momordica charantia, Ephilachna sp, pesticides
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