哈尔滨梨园梨小食心虫的发生规律及其防治技术

Occurrence Law and Control Technology of Guapholitha molesta Busck in Harbin Pear Orchard

以哈尔滨地区梨园为研究对象,调查研究了梨园梨小食心虫成虫的发生规律及其防治技术。结果表明：哈尔滨地区梨小食心虫一年发生3~4代,时间从6月末至9月下旬,时间长、危害大;6月初至7月中下旬,是梨小食心虫幼虫大量发生期,也是危害的主要时期,要特别注意防治。

Taking the area of Harbin pearas research object,the occurrence law and control technology of oriental fruit moth were investigated and studied.The results showed that Harbin area Grapholitha molestaoccurred 3-4generations ayear,from late June to last ten days of September,the time was long,the harm was great;the June to late July,was a large number of larvae occurrence period,and also was the important time of the harm,should pay special attention to prevention and treatment.