According to the website of the Ministry of Agriculture, this year, Sclerotinia disease occurs in the rapeseed production areas in the middle and lower reaches of the Yangtze River. In this regard, Hu Shengwu, a rapeseed expert at the Agriculture College of Northwest Agriculture and Forestry University, pointed out that to prevent and treat rapeseed sclerotinia, we must first start with the source, and strictly control the variety and use of resistant (resistant) varieties. The resistance of B. napus to B. napus was generally strong, and in B. napus, the resistance to disease was higher for the varieties with slightly higher branches and smaller branching angles. At present, Ganzai No. 1 and Shanza No. 1 are the main cultivars that can be planted in Weibei Dryland in Shaanxi; Guanzhong Irrigation Area is dominated by Qinyou No. 7, Qinyou No. 8, and Shanyou No. 9; Hanzhong and Ankang in southern Shaanxi Province. Qin oil No. 7, Qinyan 211, Zhongyouza No. 2 and Deyou No. 8 were the main cultivars. Second, we must do a good job of comprehensive prevention and control of agriculture. Reducing the primary source of impregnation, implementing paddy and oil rotation, and dryland farming should be carried out for more than two years with non-cruciferous crops. Leave the disease-free strain to stay. To improve the eco-environment of rapeseed, measures such as narrow trenches and clearing of trenches should be taken. Finally, in the implementation of agricultural control, the implementation of chemical control is an important measure to control the hazards of this disease. Sclerotinia sclerotiorum has 40% sclerotium net (formerly known as Hubi Lee) WP 1000 to 1500 times 1 to 2 times, 50% carbendazim powder or 40% sterilized Wei Suoji 500 times 2 to 2 3 times, 70% thiophanate-methyl wettable powder 500 to 1500 times 2 to 3 times, 50% fast-king powder 2000 times 2 to 3 times, 50% chlorpheniramine wettable powder 100 to 200 times liquid 2 to 3 Times, 50% acetaminophen powder 1000 to 1500 times liquid. The above dosage of the agent is 100-125 kg per acre.
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