《农业论文写作》由会员分享，可在线阅读，更多相关《农业论文写作（11页珍藏版）》请在金锄头文库上搜索。
1、Pesticidal and pest repellency activities of a plant derived triterpenoid2,3,21,23,28-pentahydroxyl 12-oleanene against Tribolium castaneum.,Contents,01,02,03,Background,Methods,Results,Laportea crenulata, Tribolium castaneum 2,3,21,23,28-penta hydroxyl 12-oleanene, Botanical pesticide, Botanical pe
2、st repellent.,Keywords,Tribolium castaneum is a major pest of stored grain-based products, and cause severe damage to cereal grains throughout the world. Synthetic agents has led to environmental disturbances, lethal effects on nontarget organisms and direct toxicity to users. The roots of the plant
3、 have stimulant, stomachic and diuretic properties .suggest the presence of biologically active substances in roots of the plant.,Background,Plant materials Isolation of 2,3,21,23,28-penta hydroxyl 12-oleanane Collection and maintenance of pest Screening for insecticidal activity Insect repellency test,Methods,Results,These data suggest that the triterpenoid 2,3,21,23,28-penta hydroxyl 12-oleanene possess both pesticidal and pest repellency activities against T. castaneum and can be used in controlling the pest of grain-based products.,Conclusion,
