In order to find out the most suitable spray concentration of fenvalerate for te pests of brinjal, a field experiment was conducted with four levels of spray concentrations namely 0.005, 0.01, 0.015 and 0.02 percent and giving four sprays at 20 days interval. The most effective concentration was found to be 0.02 percent and in the washed and cooked fruits the residue level has come down to below the tolerance limit by 1.7 days, whereas waiting period for raw fruits was found to be 12.99 days.
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