Bioactivity of certain plant extracts against Callosobruchus maculatus (Fabr.).
Ranjana Saxena, Beenam Saxena
Author Affiliation: Deptt. of Zoology, Bareilly College Bareilly - 243 005, Uttar Pradesh, India.
Journal of Applied Zoological Researches 11 : 29-32
Abstract : Five plant extracts from (Azadirachta indica kernels, Allium sativum bulbs, Citrus sinensis peels, Citrus limon peels and Mangifera indica leaves) each having three concentrations (1, 1.5 and 2%) were tested against pulse beetle, C. maculatus. The petroleum ether extract of neem kernel was most effective as 1.5 and 2% level showed 50 and 61.11% mortality, whereas its methanol extract showed 38.88 and 55.55% mortality with respective concentrations. Two percent concentration of garlic in both solvents also showed 50% mortality. Minimum number of eggs were laid (21.67, 15.00 and 5.67 at 1%, 1.5% and 2% level respectively) with petroleum ether extract of neem kernel. Methanol extract of plant parts showed more developmental period of pests compared to the petroleum ether extract.