K. Sahayaraj et Mg. Paulraj, SCREENING THE RELATIVE TOXICITY OF SOME PLANT-EXTRACTS TO SPODOPTERA-LITURA FAB. (INSECTA - LEPIDOPTERA - NOCTUIDAE) OF GROUNDNUT, Fresenius environmental bulletin, 7(9-10), 1998, pp. 557-560
A laboratory study was carried out to evaluate the effect of water ext
racts of four plant leaves in the phytophagous pest control. Various c
oncentrations, of the extracts (0.5,1,2, 4 and 6%) were used against l
ast instar larvae of Spodoptera litura Fabricious. Calotropis giganta
was found to be the most toxic plant product followed by Vitex negundo
Linn. Azadirachta indica Adr Juss. and Pongamia glabra. Use of these
plant products, a natural ecofriendly products is suggested in the man
agement of the S.litura.