棉铃虫危害苹果葡萄问题应引起重视刘祥玉涞水县农业局原种场　０７４１００近年来，棉铃虫对苹果、葡萄等果树危害日益严重，导致虫果率增加。对此，各地应引起高度重视。棉铃虫危害葡萄幼果一般是将果实蛀成大孔洞；危害苹果一般是把卵散产于嫩叶或果实上，孵化成幼虫后... Cotton bollworm harm apple grapes should pay attention to Liu Xiangyu Laishui County Bureau of Agriculture original seed market 074100 In recent years, the bollworm on apple, grape and other fruit trees increasingly serious harm, resulting in insect fruit rate increased. In this regard, all localities should attach great importance. Bollworm endanger grapes young fruit generally bore large holes into the fruit; endangering the apple is generally the egg scattered in young leaves or fruit, after hatching into larvae ...