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三斑果螟是天峨县大果山楂的主要害虫，一年发生４～５代，以老熟幼虫越冬，翌年３月下旬出现成虫，４～１０月幼虫为害，１０月下旬后以第五代幼虫在其吐丝粘连在树枝上的被害果内越冬
The three spot fruit borer is the main pest of the big fruit hawthorn in Tian’e County. It takes 4 to 5 generations a year to overwinter the mature larvae. Adult adults emerge in late March of the following year, and the larvae of April to October are injured. After the end of October, On behalf of the larvae in the silkworm sticking in the branches of the victim fruit winter