Control methods of wheat sheath blight

The comprehensive control method of wheat sheath blight is mainly adopted by the combination of chemical control and agricultural measures, and the varieties with good disease resistance should be selected during sowing, and the single antigen varieties should not be planted in a large area. before sowing, the seeds can be mixed with chlorphenil suspension agent, tebuconazole suspension seed dressing agent and tebuconazole wettable powder, and nitrogen fertilizer, phosphate fertilizer and potassium fertilizer can be applied reasonably in the growth process to improve wheat disease resistance. After entering the jointing stage, appropriate amount of benzomethyl propiconazole EC can be used.

1. Control methods of wheat sheath blight

1. To control wheat sheath blight, we should adopt the comprehensive control method of chemical control and agricultural measures, so as to effectively prevent wheat sheath blight.

2. The varieties with good disease resistance can be planted according to the local climatic environment, and the rational distribution of wheat varieties should be planned, and the single antigen varieties should not be planted in a large area.

3. In the process of planting, organic fertilizer should be increased and formula fertilization should be adopted. Nitrogen fertilizer, phosphorus fertilizer and potassium fertilizer can be applied reasonably, not only nitrogen fertilizer or over-application of nitrogen fertilizer. Reasonable fertilization can control the vigorous growth of wheat and promote the healthy growth of wheat root system, so as to improve the disease resistance of wheat.

4. during the period, sowing should be carried out at a suitable time to avoid early sowing, and the technology of precision sowing of wheat can be adopted to reduce the amount of wheat sowing.

5. Wheat should be watered early or lightly after turning green, and flood irrigation should not be carried out to prevent excessive humidity between plants for a long time. Weeds in the field should be removed in time during the growth period, and Rain Water should be drained in time after rain in the season. It is helpful to control the occurrence of diseases and insect pests.

6. Before sowing wheat, seed dressing should be done with 2.5% nitrile suspension 100-200ml/100kg seeds, or 0.8% nitrile-pentane suspension seed coating agent with a seed ratio of 1:40-50, or 15% tebuconazole wettable powder with 0.03% seed weight, or 5% tebuconazole suspension seed dressing agent 70-80g per 200jin of seeds.

7. When wheat enters the jointing stage in spring, 30% benzopropiconazole 10g per mu, or 5% Jinggangmycin 40g, or 12.5% uniconazole wettable powder 15g, or 10% difenoconazole water dispersible granule 20g, the control effect is 20% and 30% higher than that of seed dressing alone.

8. During the period, the use of 30% benzopropiconazole EC not only has a good effect on the control of wheat sheath blight, but also has a good effect on lodging resistance and increase yield, with an increase of about 2% and 10%. If the wheat sheath blight is more serious, the medicine can be sprayed again every 10-15 days.