蚕豆象一年发生一代,成虫在3月中下旬蚕豆始花前后大量飞入田间,栖息在蚕豆的花瓣和叶片上,以花粉、嫩叶为食。在蚕豆结荚期开始产卵,到结荚末期产卵结束。当蚕豆进入鼓荚期,幼虫即蛀入豆粒内取食,以后幼虫随豆粒收获而带进仓内继续为害,并在豆粒内化蛹、孵化,以成虫越冬。蚕豆象的防治方法有以下几种:1.毒杀成虫。在蚕豆初花期至盛花期,用20%速灭杀丁每亩20毫升兑水60公斤喷雾,每隔7— Broad bean like a generation a year, adult worms in mid to late March before and after a large number of flea flies into the field, perched on the petals and leaves of broad beans to pollen, young leaves for food. In the faba bean pod start to spawn, to the end of pod end of spawning. When the broad bean into the drum pod stage, the larvae moth into the bean grain feeding, later larvae with the bean harvest and into the warehouse to continue to harm, and in the bean grain pupation, hatch, overwintering adult. Vicia faba control methods are the following: 1. To kill adults. At the beginning of the flowering period of Vicia faba, with 20% speed kill Ding Ding 20 ml of water watered 60 kg spray, every 7-