药剂防治,是防治蚕豆病虫害重要手段,下面介绍几种蚕豆病虫害药剂防治方法。1、赤斑病叶片上先生赤色小点,逐渐扩大成圆形或椭圆形病斑,严重时各部位均变成黑色、枯腐,茎杆内壁有黑色菌核。药剂防治:在发病初期喷施1:2:100的波尔多液,以后每隔10天,喷50%多菌灵500倍液1次,连喷2 Pharmacy control, is an important means of prevention and treatment of Vicia faba, the following describes several methods of pest and disease control of Vicia faba. 1, red spots on the leaves Mr. red dots, and gradually expanded into round or oval lesions, severe all parts become black, dry rot, stalk inner wall with black sclerotia. Pharmacy control: In the early stages of the disease sprayed 1: 2: 100 Bordeaux mixture, after every 10 days, spray 50% carbendazim 500 times 1, and even spray 2