Assessment of Oviposition Deterrent and Insecticidal Activities of Clitoria ternatea L. Plant Extracts Against Stored Grain Pest Pulse Beetle, Callosobruchus maculatus(Fabr.) (Coleoptera: Bruchidae)

Dr. Archana Kumari; Dr. Uday Kumar

Volume : IV, Issue : IX, September - 2014

Assessment of Oviposition Deterrent and Insecticidal Activities of Clitoria ternatea L. Plant Extracts Against Stored Grain Pest Pulse Beetle, Callosobruchus maculatus(Fabr.) (Coleoptera: Bruchidae)

Dr. Archana Kumari, Dr. Uday Kumar

Abstract :

Methanolic extracts of Clitoriaternatea L. plants (family: Fabaceae) were evaluated under laboratory conditions for their insecticidal and oviposition deterrent activity against Callosouchusmaculatus on green gram. All the methanolic extracts of plant parts viz. leaf, flower and seed showed significant mortality and reduction of egg laying when compared to the control. However, among the plant parts evaluated, seed extract of C.ternatea was found to be most effective causing 75% adult mortality and 98.4% oviposition deterrent activity. This was followed by leaf extract causing 63.33% adult mortality and 89.51% ovipositiondeterrent activity and Flower extract causing 40% adult mortality and 82.51% oviposition deterrent activity. Susceptibility of seed and leaf extract was found to be more in case of female adult when it was compared with the control sample. Extract of flower of C.ternatea did not show much difference between female and male mortality . Mortality of adult andoviposition deterrent activity of the plant as observed in the present investigation suggests that the extracts from this plant may be one of the most effective botanicals that could be used as green gram protectants in controlling infestation of C. maculatus.