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近几年来,湘西山区大力发展葡萄,但1992年以来葡萄吸果蛾发生严重,有的减产80％以上,成为葡萄生产上的突出问题。为此,我们在本校和吉首市农村进行捕捉和定点观察,初步掌握了吸果蛾种类和为害习性,并探索了防治方法,现简报如下。 1.种类与取食类型 于葡萄果实食成熟前,吸果蛾夜晚吸食为害时,组织人力采集正在为害的成虫,共捕捉到吸食葡萄果实的蛾类23种(其中夜蛾科22种、拟灯蛾科1种)共843头。据检视按口器的尖锐与角质化程度、取食习性分为3类:
In recent years, mountainous areas in western Hunan have been vigorously developing grapes. However, grapes have been severely damaged since 1992, and some of them have been cut by more than 80%. This has become a prominent issue in grapes production. To this end, we have captured and observed in rural areas of our school and Jishou City. We have initially mastered the types of moths and their harmful habits and explored ways to prevent them. 1. Species and types of feeding Before the ripening of the grape fruit, the fruit moths take harmful effects of nocturnal absorption, and then the human beings are collected to collect the adult moths. 23 species of moths Moth family 1 species) a total of 843 head. According to the sharp and keratinized view of the mouth-opener, feeding habits are divided into three categories: