In order to further strengthen the autumn seeding and dressing of wheat and the prevention and control of pests and diseases in autumn and winter, the National Agricultural Technology Extension Service Center and the National Wheat Industry System Pest Control and Prevention Function Research Office organized relevant experts to propose prevention and control of major pests and diseases of wheat in autumn and winter in different producing areas of China. Technical guidance, we extract the main content for your reference.  ◆ Adhere to the principle of “emphasizing key points, zoning governance, adapting to local conditions, and classifying guidance†and implementing the plant protection policy of “prevention first, comprehensive preventionâ€.  ◆ Adopting the prevention and control strategy of combining green prevention and control with unified prevention and control, using comprehensive measures such as agriculture, biology, physics and chemistry, focusing on planting disease-resistant varieties, vigorously promoting the dressing of pesticides, and reasonably adopting late-time broadcast and clearing Self-growing wheat in the field and weeds along the roadside.  Prevention focus  Huanghuaihai wheat area: mainly sheath blight, root rot, total etch, smut, cyst nematode, yellow mosaic disease, underground pests and weeds, and cure rust, powdery mildew, mites and ash Flying insects and other pests.  The wheat area in the middle and lower reaches of the Yangtze River: the main target of sheath blight, total erosion, smut and smut, and a few fields have underground pest damage.  Southwest wheat area: mainly wheat stripe rust, taking into account pests such as scab, powdery mildew, wheat stubble, wheat spiders and underground pests.  Northwest wheat area: wheat stripe rust, powdery mildew, smut and underground pests are the main control objects.  Planting resistant ( resistant ) pests  Southern Huanghuai stripe rust often prone area should be early onset retransmission region growing perennial Zhoumai 17, Yu-Mai 34, Yumai49, yumai 69, 19 new wheat, Xinong 979, Xiaoyan six rust slow Rust variety. In areas where cyst nematode is severely affected, plants with certain disease resistance such as Space No. 6 , Zhongyu No. 6 , and Xinmai 11 should be selected . New wheat cultivar and new-producing areas of wheat yellow mosaic disease can be planted with new varieties such as Xinmai 208 , Yumai 70-36 , Panmai 5 , Yumai 70 and Zhengmai 366 .  In the middle and lower reaches of the Yangtze River, the wheat field and the scab recurrence area should have certain resistance to disease resistance to diseases such as scab and reduce the pressure of using chemical agents to control wheat scab.  The southwestern wheat area is mainly resistant to stripe rust. According to local conditions, Mianzai 168 , Mianmai 37 , Mianmai 39 , Mianmai 41 , Mianmai 43 , Mianmai 45 , Chuanmai 42 , Chuanong 18 , Xi Kemai No. 2, No. 18 Emai, Yunmai No. 2, 15 Qian wheat, wheat weeks 17, 53, etc. Wanmai resistant varieties.  The northwest wheat area is the summer area of ​​wheat stripe rust. In different altitude areas of this area, the selection of wheat varieties with different disease resistance genes plays an important role in controlling the spread of wheat stripe rust and the initial bacterial source. In the wheat areas around the Yuexia District, such as the Minnan Mountain Area and Liupan Mountain, the varieties resistant to ( resistant ) diseases should be planted according to the situation . According to the situation, other areas in the northwestern wheat area should try to select high-quality local varieties with high disease resistance and high yield.  Chemical dressing  According to the condition of pests and diseases, high-efficiency suspension seed coating agents such as tebuconazole, difenoconazole, fludioxonil, diphenyl ether, and flavonol are used to prevent disease by wheat seed coating, and coating with appropriate amount of imidacloprid suspension coating agent Pests, yellow dwarf disease and bushy dwarf disease, the combination of the two can cure the main pests and diseases in the seedling stage. In the strip rust disease summer area and its surrounding wheat area, seed dressings such as triadimefon and tebuconazole are used for seed dressing, and the stripe rust, powdery mildew and prevention of smut in the late stage are also treated. Disease areas in the total eclipse, focus take difenoconazole yl suspension Seed and silthiofam (Gaeumannomyces neat) suspending seed dressing or coating; phoxim choice of soil pests chlorpyrifos or seed dressing; Soil For the field where the disease and underground pests are particularly serious, the soil treatment should be carried out. A variety of disease and pest mixed areas, according to the local major pests and diseases, can be coated with a fungicide and insecticide compounding agent or seed dressing for coating or seed treatment. Complex (hybrid) of each active ingredient in the agent should be substantially the same as a single dose when used alone. In the areas where seedling stage aphids, wheat spiders and underground pests are more harmful, seed dressing is carried out with phoxim or imidacloprid suspension seed coating.  Agricultural measures  In the Huanghuai wheat area, the corn stalks are returned to the field, and fine soil preparation should be done. The corn stalks should be buried in the soil as much as possible, and the residual stalks of the seedlings should be cleaned up. After the emergence, the winter irrigation and the suppression of the wheat seedlings should be combined. In areas or areas where cystic nematodes are severely affected, it is important to promote the suppression of disease control measures after sowing and autumn seedlings. In the summer area of ​​wheat stripe rust, the method of artificially eradicating and spraying herbicides should be used to remove the self-produced wheat seedlings. According to the lyrics during the sowing period, the suitable sowing time should be adopted to reduce the infestation of stripe rust in the seedling stage, reduce the disease at the seedling stage, and reduce the autumn seedlings. Source quantity.  Autumn seedling prevention  According to the incidence of autumn saplings such as stripe rust, powdery mildew and sheath blight, when the disease occurs seriously, carry out the spot protection. In the southern part of the stripe rust fungus winter area, strengthen monitoring, chemical control of early diseased fields, chemical agents can be controlled with triazole fungicide spray. In the seedling stage of sheath blight, it is necessary to strengthen monitoring and early prevention and control ; in the Weibei dryland area, Gansu Longdong area, Longnan area, southern Ningxia winter wheat area, on the basis of seed dressing prevention, attention should be paid to prevention and control. Seedling stage aphids to prevent the occurrence of wheat yellow dwarf disease. Early winged aphids can be trapped by yellow plates, and chemical control can be controlled by spraying high-efficiency and low-toxic insecticides such as imidacloprid and pymetrozine.     Ultraviolet Bulb,T5 4 Pin Uvc Tube,T5 4 Pin Uvc Light,T5 4 Pin Uvc Bulb Changxing leboom lighting product CO.Ltd. , https://www.leboomuvd.com
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