Sclerotinia sclerotiorum can occur from the seedling stage to the mature stage, and the incidence is severe from the final flowering stage to near mature stage. Sclerotinia disease damages the rapeseed leaves, petioles, stems, flowers and pods, and the stalk incidence is heavier. The leaves, stems, and petals of susceptible plants are often perishable. The diseased pods often die prematurely and the rots of the culms cause a lot of lodging. The general disease strain rate is 10% to 30% and 80% in severe cases. Therefore, after the spring, comprehensive and effective prevention and control measures must be taken to achieve the goal of ensuring high yields. After the spring, the gutters will start to rain, and the rainwater will increase. It is necessary to clean up the ditch in time so that the ditch can be unblocked, reduce the humidity in the field, and prevent the soil from getting stagnant due to the waterlogging. After spring, the rape blossoms, the vigorous growth period of branches and leaves, and the degree of field canopy closure are large, which is conducive to the spread of disease, severe disease, drainage and drainage, lowering the groundwater level in the field, improving the growth environment of rape, and strengthening the activity of the roots, thereby increasing the resistance of the plants. Illness. After cultivating loose soil and destroying the ascidian plate, we should start the cultivating tillage as early as possible in sunny days. In late February to early March, the field should be smashed twice, not only to control the growth of weeds, but also to bury sclerotia. The ascidian plate can also improve the permeability of the soil, which is conducive to the stable growth of rapeseed. The depth of the cultivator should include the principles of deep wet fields, shallow fields, deep Miaowang and weak seedlings. The flowering period of yellow rapeseed is the period in which rape sclerotinia is the most susceptible to infection. In addition, the ascospores released from the sclerotia of the overwintering sclerotia have a long anastomosis with the flowering period. Therefore, the peak period of the formation of the appressus and the peak period of the diseased leaf growth are often at the same time. In the same period, the “triple leaves†of the long-handleed leaves, short-handed leaves, and low-main leaves of the main stem of the main stem 1.2 meters or less were removed before and after the final flowering of the rape to interrupt the re-dyeing of the bacteria so that they could not invade the stem. This will play a preventive role. Practice has proved that the effect of picking yellow leaves is better than spraying. However, it should be noted that the yellow leaves removed each time should be brought to the field for fertilizer or feed in time to prevent the spread of the disease. Control of nitrogen fertilizer, increased phosphorus and potassium fertilizer rape growth should be strictly controlled the amount of nitrogen fertilizer later, so as to avoid delaying the greediness, field closure caused by the disease. Phosphorus and potassium fertilizers should be added. At the end of February, combined with loose soil cultivation, 5~6 kg of potassium chloride per acre should be added to 100~150 kg of manure water, and the water should be applied once, which will help the plants grow robustly and increase their resistance. Disease ability, but also can reduce the loss of buds, increase branches, increase angle, increase grain, gain weight, to increase production purposes. Timely application of pesticides for prevention and control: Generally, the pesticides are sprayed at the full flowering stage and the final flowering stage. When the diseased stems rate reaches 1% or the diseased leaf rate reaches 10%, the pesticides must be used immediately for prevention and treatment. % Bactericidal Granules 150 ml or 25% carbendazim 200 g, spray evenly on water 50 kg. The control of locusts should be done with pesticides such as Dagong Chen, Jingjing, Once-Net, Kasita. Harvesting methods 50% to 90% of Sclerotinia sclerotiorum is concentrated in the base of the stem 12 to 15 cm. When the rape in severely afflicted areas and severe disease fields matures, it is necessary to improve the harvesting method, and the uprooted plants are uprooted to prevent the sclerotia from falling off the middle of the field. In order to reduce the amount of sclerotia in the soil, the stalks can be composted or burned as high temperatures as possible, which can effectively reduce the incidence of Sclerotinia sclerotiorum in the next year. Bifidobacterium Lactis,Bifidobacterium Lactis Powder,Bifidobacterium Lactis Probiotic,Bifidobacterium Lactis Supplement Jiangsu Biodep Biotechnology Co. ,Ltd. , https://www.mbioda.com