Main diseases and control methods of beans

The main diseases of beans are leaf spot, blight, blight, root rot and rust, and the pests are double bean borer, cutworm, thrips, leaf miner and leech. Integrated control techniques should be adopted to control them. The main methods for controlling diseases and insect pests include: planting fields that have not been planted with leguminous crops for more than two years; clearing weeds around the fields and burning them in a centralized manner; carrying out soil pest control and sterilization treatment by watering the fields for one week, or applying 0.5 kg trichlorfon or 0.5 kg dimehypo and 1 kg carbendazim per mu; planting high ridges, opening irrigation ditches to prevent waterlogging and root rot; increasing organic fertilizer, rational topdressing, and combined application of nitrogen, phosphorus and potassium. Rational use of chemical pesticides. Rust disease was controlled by Baike and Triadimefon; leaf spot disease was controlled by Mibingwei and Thiophanate-methyl; fusarium wilt disease was controlled by carbendazim, copper oxychloride and benlaite; epidemic disease was controlled by metalaxyl, Prochloraz, Sanfufan and Ruidu; root rot disease was controlled by carbendazim, Dikesong and Dixiao Sanfuwang. To control underground pests such as cutworms, in addition to soil treatment, trap and kill can be adopted: pesticide irrigation can be phoxim, trichlorfon, dimethoate; trap and kill with fried bran mixed trichlorfon in the evening applied around the field. Thrips were controlled with Kangfuduo, Qixingbao and Gaoyandongchen; cowpea borer was controlled with dimehypo, chlorfenapyr and Uranus; mites were controlled with carmitin and Uranus; leaf miner was controlled with dimehypo, trichlorfon, phoxim and haoniandong.