豫东地区温室白粉虱发生规律的研究

The Reasearch of Greenhouse Whitefly' Regularity in the East of Henan Province

通过研究温室白粉虱在豫东地区日光温室内的发生规律及对防治方法实验．表明：温室白粉虱对蔬菜作物的危害在1d和1a内均出现两个高峰期，即1d中的10：00～12：00时和15：00～17：00时，1a内的5月中旬至7月下旬和9月下旬至10月中旬，作物受害程度因作物种类不同而异，采用10％吡虫啉可湿性粉剂和20％多福康可湿性粉剂防治效果最佳．

The regularity of greenhouse whitefly in solar greenhouse had been investigated in the east of HeNan. The result showed that the harm of whitefly to vegetable has two peaks during one day and during one year. In one day, the peak harm occcur from 10：00 to 12：00 and froml5：00 to 17： 00. In one year, the peaks take place from mid - May to later - July and from late - September to mid - October, Different vegetable has different affected states. The better shields are 10% Imidacloprid W. P, and 20% DuoFuKang W.P..