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The main diseases of bean (season bean) include: rust, bacterial disease, anthrax, gray mold, blight, root rot, nematode, etc.; pests mainly include: Liriomyza sativae, whitefly, grasshopper, leafhopper Wait. Its pollution-free integrated control technology: First, rotation. Fusarium wilt, root rot, and anthracnose-infested plots must be replaced with non-legume crops for more than three years. Second, choose disease-resistant varieties. Nine white, fresh show 1, purple autumn beans (and anti-blight wilt disease), Qiu Kang 6 (and anti-virus disease) and so on are resistant to rust. Fusarium wilt disease has good harvest No. 1, Jinzhou Shuang Jibai, Qiu Kang 19 and so on. Anti-Anthracnose has early maturing No. 14, Dabaijia and so on. Third, seed processing. The control of anthracnose and wilt can be done with 50% carbendazim WP, 0.5% of the seed weight, or 50% soaking with 40% polysulfide suspension for 2-3 hours, or 40% formalin 300 Soak the seed for 4 hours, then rinse with clean water and sow. Fourth, strengthen field management. The implementation of ridge cultivation, attention to control the protection of temperature and humidity, cooling and loose wet, reduce the time of foliar condensation; exposed drainage to prevent water. The pests and leaves were removed promptly and the diseased plants were immediately removed and destroyed outside the field. Fifth, biological control. Awetoqing 1000 times liquid spray can prevent and control Liriomyza sativae, leafhopper and aphid; 72% agricultural streptomycin 3000-4000 times liquid, or 1 million unit neomycin solution 3000-4000 times spray, prevention and treatment Bacterial disease; 1% Wuyimycin agent 150-200 times liquid spray, prevention of gray mold. Six, chemical control. 1. Control 80% of trichlorfon WP 1000 times for underground pests. The whitefly can be sprayed with 20% Buprofone WP 1000x or 73% Kraft WP 1000-1500x and treat aphids. 2, root rot disease at the beginning of the disease with 70% thiophanate-methyl WP, or 50% carbendazim WP 500 times Irrigation root, 500 ml per hole liquid. 3. In the initial stage of rust, spray 40% Fuxing EC 2000 times, or 25% Triadimefon 1000 times. 4, in the early period of gray mold, spraying 20% ​​gray Weiwei WP 600 times, or 50% fasting WP 1000 times liquid control. The preferred use of 6.5% vanillin dust in the protected area is 1 kg per mu. 5. In the early stage of bacterial disease, spray 30% DT suspension 500 times, or 77% to kill WP 600 times spray. 6, when the incidence of anthrax can be used 80% anthrax Fumei WP 400-500 times, or 75% chlorothalonil wettable powder 600 times spray control. In the protected area, 5% chlorothalonil dust is preferred, 1 kg per mu, or 45% chlorothalonil smoke agent, 200 g/mu. Pay attention to the safe use of drugs for chemical control: First, strictly follow pesticide safety intervals, concentrations, and methods of administration. The second is to avoid mining time picking, picking should be followed by application. The third is to change the use of drugs, try to use different types of pesticides as much as possible. Fourth, the product should pass the pesticide residue test.