蚕豆象蛀食豆粒,使千粒重下降,品质变劣,以至招致霉烂。据剥查,大丰县蚕豆被蛀率一般在40～50％,高者达70％以上,损失很大。为适应生产需要,我们就蚕豆象的发生规律及其田间防治技术进行了研究。 一、蚕豆象的发生 蚕豆象一年发生一代,以成虫在豆粒内或仓库角落与墙缝等隐蔽处越冬。豆粒内越冬成虫为翌年主要虫源,据系统观察,常年 Broad beans like eaten beans, bean grain weight decline, poor quality, and even lead to mildew. According to the investigation, Dafeng County broad bean moss rate is generally 40 to 50%, the highest of more than 70%, a great loss. In order to meet the needs of production, we conducted a study on the occurrence of Vicia faba and its field control techniques. First, the occurrence of broad beans phenomenon Broad beans like a generation a year to adults in the bean grain or warehouse corner and wall cracks and other shelter at the winter. Beans grain overwintering adult as the main source of the following year, according to systematic observation, perennial