First, prevention and control measures
1. Seed treatment
Pre-planting of wheat seeds for coating or seed dressing is a major measure for the prevention and control of underground pests and wheat seed propagation, soil-borne diseases, and autumn seedling powdery mildew, leaf rust, wheat spiders, and planthoppers. Safeguard the key measures for the whole seedlings and strong seedlings of wheat. All districts should scientifically adjust the types of coating or seed dressing agents according to the local occurrence of pests and diseases to ensure that the wheat “white seeds†do not fall to the ground.
Seed coating insecticide and fungicide formula can choose Albany 31.9 Suspension 6ml/kg (seed volume, the same below), 600g/l imidacloprid suspension coating agent 4.8g/kg+60g/l omeprazole Alcohol-suspended seed coating agent 0.5 g/kg, thiamethoxam 70% seed treatment dispersible granules 4 g/kg +60 g/liter tebuconazole suspension seed coating agent 0.5 g/kg, Kulas 600 g/kg; 50% phoxim EC can be used as seed dressing insecticide, 50% carbendazim WP can be used as seed dressing 0.2% of seed amount, insecticide and bactericide can be mixed with liquid medicine, stuffy stuffy 4 to 6 hours, soak after drying. Phoxim dressing should pay attention to dark operation.
2. Prevention of pests and diseases in seedling stage
In the autumn wheat field, the small weeds and poor drug resistance are favorable timings for chemical weed control. Chemical weeding can be carried out in accordance with the occurrence of weeds in the field. Chemical weeding should be carried out after the wheat tillering stage and during the weed 2 to 4 leaf stage. For wheat fields dominated by sow weeds, such as sow plant and leeks, 10% of tribenuron-methyl wettable powder can be used per acre, or 1 g of 75% tribenuron-methyl sulfate in suspension; Weed-based wheat fields can be controlled by 70% of chlorsulfuron-methyl dispersible granules (3 to 4 grams) per mu. When the wheat bran and the planthoppers in the wheat field are serious and meet the prevention and control indicators, chemical control shall be carried out in time to prevent their damage to the wheat seedlings and transmission of the virus disease.
Second, management measures
1. Make pest monitoring and forecast
Do a good job of monitoring pests and weeds, find out the local pests and weeds, local conditions, and guidance for classification, which is the basis for the prevention and control of pests and weeds. The plant protection departments of all districts should promptly identify the bases of occurrence of diseases, weeds and grasses of different environments, soil quality, and previous crops, accurately forecast and timely release pest information.
2. Strengthen inspection and quarantine and market supervision
The seed business department must strengthen seed quarantine and quality inspection when transporting wheat seeds. It is strictly forbidden to transfer seeds from infected and diseased areas to prevent the introduction of dangerous pests. All districts must promote the use of resistant varieties planted in this region according to the local occurrence of diseases, pests and weeds. We will strengthen supervision of the pesticide market and severely crack down on illegal production and sales of counterfeit pesticides.
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