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透翅蛾是近几年来为害葡萄枝干的主要害虫。据 1998年和 1999年调查 ,葡萄集中产区的被害株率 ,轻的地块达 10 %左右 ,重的地块达到 30 %左右 ,并有逐年加重为害的趋势。所以 ,加强对葡萄透翅蛾的防治势在必行。1 为害症状透翅蛾以幼虫蛀食嫩梢和 1～ 2 a生枝蔓 ,致嫩梢枯死或
The pest moth is the main pest that damages the grape shoots in recent years. According to the 1998 and 1999 surveys, the rate of victimization in the concentrated grape producing areas is about 10% of that of light land plots and about 30% of heavy land plots, with a tendency of increasing year by year. Therefore, it is imperative to strengthen the control of grape pest moths. 1 damage symptoms perforatum moth feeding young shoots and 1 ~ 2 a raw branches, resulting in young shoots wither or