01514nas a2200181   4500008004500000020001400045245014800059210006900207260001300276300001000289490000700299520082100306653002301127100001401150700001501164700001801179856013501197       2008                        Engldsh    a0126-864300aEffect of selected plant extract on mortality of adult Sitophilus zeamais Motschulsky (Coleoptera: Curculionidae), a pest of stored rice grains0 aEffect of selected plant extract on mortality of adult Sitophilu  cDecember  a41-460 v373 aA preliminary study was conducted to test 16 crude extracts of selected plants on the mortality of ruphilus zeamais adult. The bioassay was carried out by mixing crude extracts with rice grain at 0.5 and 0.25% concentrations by weight. It was found that crude extracts of Jatropha curcas (seed) and Annona muricata (seed) caused 1000A mortality on weevil at 0.5% concentrations while at 0.25% they caused 96.7 and 98.3% mortality respectively. Crude extract of J. curcas (leaf) and Azadirachta indica (seed) at 0.5% caused 81.7 and 51.7% mortality respectively, while at 0.25% the mortality was 55% and 25%, respectively. Crude extracts of J. curcas seed and leaves, A. muricata (seed) and A. indica (seed) seem to have potential as botanical insecticides but further studies need to be conducted against S. zeamais.10aSitophilus zeamais1 aAsmanizar1 aDjamin, A.1 aIdris, A., B.  uhttps://weevil.myspecies.info/effect-selected-plant-extract-mortality-adult-sitophilus-zeamais-motschulsky-coleoptera-curculionida