哈尔滨地区梨木虱生活史及药剂防治试验

Life History and Chemical Control of Harbin Pear Psylla

为解决哈尔滨梨木虱的有效防治技术,于2006-2007年进行了该试验,通过生活史的观察,梨木虱的有效防治时期为越冬成虫出蛰盛期,即4月末5月初（花芽膨大期）;其次为第1代卵孵化期,5月上、中旬（谢花后）,可结合梨大转果进行防治。防治效果以1.8%阿维菌素乳油2 500倍液、10%吡虫琳可湿性粉剂3 000倍液和20%灭扫利乳油2 000倍液较好,田间防效达75%以上。

In order to solve the effective control techniques on Harbin pear Psylla,the test was carried out through 2006 to 2007,by observation on the life cycle of Psylla.The effective prevention and control period of Psylla was in hatching out of hibernation for the winter period of the adult,at the end of April to early May（flower bud expansion period）;the second was in first generation egg incubation period,in early May and the mid-May（after the flower）,we can carry out prevention and control combined with large pear fruit.The best control effect were 1.8% Avermectin EC 2 500 times,10% WP Lam Acetamiprid 3 000 times and 20% out So Lee EC 2 000 times,the field efficacy was above 75%.