棉铃虫危害苹果不容忽视棉铃虫是一种世界性害虫，它食性杂，寄主广，为害棉花、玉米、大豆等农作物和番茄、辣椒、南瓜等多种蔬菜。近年来发现对苹果的危害日趋严重，应引起广大果农和基层果树专业人员的足够重视。一、为害状棉铃虫幼虫喜食苹果幼嫩组织，３龄前为害嫩梢... Bollworm endanger the apple can not be ignored Bollworm is a worldwide pest, it is miscellaneous food, the host wide damage to cotton, corn, soybeans and other crops and tomatoes, peppers, pumpkins and other vegetables. In recent years, it has found that the harm to the apple is becoming more and more serious, which should arouse enough attention of the majority of fruit growers and primary fruit trees professionals. First, the harm-like cotton bollworm larvae eat young apple tissue, 3 years before the damage to the tender shoots ...