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The grub of Caryedon serratus (Olivier) (Bruchidae: Coleoptera) infests the groundnut kernels by making a characteristic round hole on them which causes qualitative and quantitative loss to the kernels, so ovipositional behavior of C. serratus was studied by choice and no-choice experiments to check the presence of ovipositional deterrent activity of egg wash extracts using three different solvents. Dichloromethane (DCM) extract showed deterrent activity on oviposition of C. serratus (20 eggs/mL) in both choice and no-choice experiments. Only 23 to 57 percent of eggs hatched. The egg extracts and groundnut extracts did not interfere with the further development of larvae to adults. GC-MS analysis revealed the presence of more than 55 compounds in dichloro methane egg extract out of which eleven compounds contributing 23.13% of the total egg extract were identified.
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