Vol. 2, Issue 6 (2017)
Biopotency of Acorus calamus, Wthania somnifera and Azadirachta indica in suppressing oviposition and adult emergence, caused by of Callasobruchus chinensis (L) infesting stored chickpea seeds in U.P.
Author(s): BS Chandel
Abstract: Experiments were conducted in Biopesticides and Toxicological Laboratory, Department of Zoology, D.B.S. College, affiliated to CSJM University Kanpur, India. In the present investigation ten naturally indigenous plant parts viz; aerial parts of Adhatoda vasica Nees., Cassia tora Linn., Vitex negundo Linn., Withania somnifera Dun., unripe fruits of Lantana camara Linn., Momordica charantia Linn., ripe seeds of Azadirachta indica A.Juss, Gynendropsis pentaphylla L., rhizomes of Acorus calamus Linn, Alpinia galanga (Linn.) Willd. extracts have been used for their biological efficacy against Callosobruchus chinensis L. (pulse beetle) on stored gram, chickpea Cicer arietinum L. ver. Kabuli (Fabales: Fabaceae) was used for oviposition deterrent and adult emergence trial under laboratory condition. Three concentrations viz. 0.5, 1.0 and 2.0 per cent of each plant extract were selected and tested by dry film technique for early emerge beetles of C. chinensis on pulse grains. The data depicted from results that maximum number of eggs laid per hundred grains are as: A. calamus (12.67) followed by L.camara (15.01) > W. somnifera (15.02) and A. indica (15.26), respectively. Minimum number of eggs bearing seeds / per hundred seeds was observed A. calamus (11.33) followed by M. charantia (12.42) > L. camara (15.01) > W. somnifera (15.02) and A. indica (15.26), respectively. The data depicted in results indicated that extracts of A.calamus registered highest resistance to adults emergence (22.67%), when compared to other extracts have registered encouraging results as: M. charantia (36.67) followed by A. indica & L. camara (42.67) and W. somnifera (42.70), respectively.