Techniques for Prevention and Control of Diseases and Insect Pests in High-quality Wheat


Wheat enters the flower filling stage, which is the main period of wheat pests and diseases. The main pests and diseases include: midge, wheat bran, head blight, powdery mildew, and rust. Due to the high and low temperatures in the spring and the large temperature difference, it is beneficial to the occurrence and development of wheat diseases and insect pests. Therefore, we must do a good job in prevention and inspection of various pests and diseases.
First, continue to do a good job of wheat midge control wheat midge has entered the adult control period, although some wheat fields have been in the flood control of poisonous soil, but some farmers friend control technology is not good, some with sand, some with too much soil Dry and scattered soils cause poor control. In this regard, farmers' friends must seize the final stage of prevention and control of midge pests—adult stage, assault spray control.
Control methods: Use highly efficient, low-toxic chrysanthemum pesticides, such as cypermethrin or compound pesticides such as Pueraria, spray once every other day, and spray 2-3 times. At the same time, potassium dihydrogen phosphate 500 times spray can be added to achieve the purpose of improving grain weight by adding fertilizers outside the roots.
Second, pay attention to the prevention and treatment of wheat aphids in a timely field investigation, when 100 strains of maggots reached 800-1000 heads, they should immediately use medication control. Can be used imidacloprid, Pu Zhi Ling spray control.
Third, timely inspection and treatment of wheat scab As scab disease is a typical climate-type disease, human, animal consumption will cause poisoning, so we must strengthen the prevention and treatment of the disease.
After the onset of wheat, it causes seedling blight, stem rot and ear rot. The disease at different stages can produce pink mold layer in the diseased area, hindering nutrient transport, and affecting yield and quality. Continuous rain at the heading and flowering stage is the main cause of wheat head blight. The most critical factor affecting its prevalence is the temperature and humidity during wheat flowering. In the wheat flowering period to milk ripening period, in case of rainy weather, while the temperature remains above 150C, the disease will become a pandemic and should be prevented and treated as soon as possible. If the drug is used lightly for one year, the pandemic year must be controlled at least twice. The first control must be at the full heading stage (10% Yanghua), and the second control must be carried out within 7 days after the first.
In the prevention and control of the disease, the main use of carbendazim and other broad-spectrum fungicides, spray control at the beginning of wheat to flower initiation, can use 80% of carbendazim powder 50g or 40% carbendazim glue suspension 50 -75 g or 50% carbendazim wettable powder 100 g water 10-15 kg spray.
4. Wheat rust, powdery mildew wheat rust, and powdery mildew are the two most common diseases. The current climatic conditions are also conducive to the occurrence of these two diseases. Attention should be paid to observation and timely detection of diseases. In addition to the rule of wheat stubble, adding 15% triadimefone powder 75g per mu or 20% triadimefon EC 50ml per mu 50kg water spray, these two diseases will play a very good preventive effect.

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