报道了植物源杀虫剂 0 2 5 %莨菪烷碱乳油防治大棚菊花白粉虱效果 ,该制剂对水稀释15 0 0～ 2 0 0 0倍喷雾 ,药后 3天的防效达 90 0 1%～ 96 6 5 % ,持效期达 10天以上 ,优于 10 %吡虫啉可湿性粉剂对水稀释 40 0 0倍的效果。且对花卉安全 ,有较高推广应用价值 This paper reports the effect of plant-based pesticide 0 2 5% -toluene alkaliphthalide on the prevention and control of whitefly chrysanthemum in greenhouse. The agent is sprayed with 150 to 200 times diluted water, with 90 0 1% ~ 96 6 5%, persistence of more than 10 days, better than 10% imidacloprid wettable powder diluted 40 0 ​​0 times the effect of water. And the safety of flowers, a higher value of the promotion