研究表明：一年之中，桃瘤头蚜发生１２～１４代。各代平均发育期：干母１７天，干雌１２天，春季迁移蚜１５天，性母２２天，性蚜２７天。秋季从夏寄主迁返桃树的有翅蚜即为性母......

豆小卷叶蛾是豆类的重要害虫。幼虫卷食芽、叶、花簇,并蛙食莢、粒、嫩茎等部。一般大豆受害,株高減低14—48％,結莢数減少11—27％左......

Life cycle of Aphis glycines Matsumura is characterized as heteroecious and holocyclic.Temperature is one of the most im......

Soybean aphid, Aphis glycines Matsumura is one of the most important pests in soybean. Life cycle of A. glycines is char......