杨梅小巷叶蛾的危害及防治

• 作 者: 罗禄怡
• 出 处: 柑桔与亚热带果树信息
• 发表日期: 1999年02期
• 关键词: 被害率 夏梢 晶体敌百虫 杀虫双水剂 残效期 喷药防治 成年树 苞叶 贵州南部 花芽分化

1危害杨梅小卷叶蛾是贵州省新记录害虫，在贵州南部是危害杨梅的优势虫种，调查发现，野生态地方品种很少见此虫发生，人工栽培的浙江杨梅受害较重。以幼虫吐丝裹叶结成虫苞，匿食其中。虫苞叶片被啃成缺孔，被害叶由绿色渐变成褐色至黑褐色。一般情况下，外观虫苞端部呈黑褐色

1 Hazard Bayberry leaf roller is a new recorded pests in Guizhou Province, Guizhou in southern Guizhou is the dominant species of endangered Myrica rubra, the survey found that rare wild endemic species of this pest occurs rarely, cultivated Zhejiang Bayberry heavier victims. To larvae spit silkworm leaves forming insect bibcock, hiding them. Insects bracts leaves were bite into holes, the victim leaves from green gradient into brown to dark brown. Under normal circumstances, the appearance of the end of the worm was dark brown