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2012年天津市桃小食心虫发生面积为11.43万亩次,虽经大力防治但在果园残留有一定越冬虫源。综合气象等因素,天津市植保植检站预计2013年全市桃小食心虫仍将呈中等程度发生,部分管理粗放的果园将偏重发生。6月上旬的越冬幼虫出土期和6月下旬开始的一代幼虫孵化期是两个主要的防治适期。为提高防治效果、减少用药,可结合监测适时施药。利用
In 2012, the occurrence area of peach moth in Tianjin was 114,300 mu. Although it was vigorously controlled, there was a certain amount of overwintering insect pests in the orchard. Comprehensive weather and other factors, plant protection and phytosanitary station in Tianjin is expected in 2013 the city Peach Moth will still occur to a moderate extent, part of the extensive management of orchards will be preoccupied. Overwintering larvae in early June and larval hatchlings started in late June are the two major control measures. In order to improve the control effect and reduce the dosage, it can be combined with the monitoring to timely apply the drug. use