How to prevent and treat wheat scab?

Wheat scab, also known as wheat head blight, rotten wheat head, and red wheat head, is an important disease of wheat and barley. In epidemic years, the yield loss can reach 10-40%. At the same time, because the metabolites of pathogenic bacteria contain toxins, humans and animals will be poisoned after eating them. Head blight is a fungal disease that can infect various parts of wheat. Generally, as long as the initial source of infection is large, there is a lot of rainfall during the heading and flowering period of wheat, there are many rainy days, and the humidity is high, the disease will break out. Prevention and control methods:

1. Select disease-resistant and disease-tolerant varieties, and use 800 times the seed coating agent New High-lipid Membrane to dress the seeds before sowing (seed dressing with the new high-lipid film can repel underground diseases and insect pests and isolate viral infections. , does not affect the germination and swell function, strengthens respiratory intensity, and improves seed germination rate), which can avoid and reduce the occurrence and prevalence of diseases.

2. Deep plow and eliminate stubble in autumn, and spray fungicides. The new high-lipid film 800 times solution treats the soil, which not only reduces the source of bacteria, but also reduces the source of overwintering insects. Irrigate the soil with sufficient soil moisture, apply sufficient soil fertilizer, especially nitrogen, phosphorus, and potassium fertilizers with a reasonable balance, and add organic fertilizer to ensure healthy growth of wheat. And the sowing date should be advanced appropriately so that the wheat can ear and bloom before the disease spreads to reduce the occurrence of the disease.

3. Preserve and strengthen ears: According to the growth situation of wheat and the characteristics of disease incidence, protective agents should be sprayed in a timely manner for prevention. It is necessary to spray Zhuangsuiling during the booting stage to strengthen the growth physiological functions of the entire heading stage, improve the quality of pollination, fertilization, and grain filling, and enhance disease resistance. When the wheat is in full bloom and in full bloom, spray 1-2 times in good weather. You can choose 50% carbendazim wettable powder 1000-1200 times liquid (or 70% thiophanate methyl wettable powder 1400 times liquid, or use 50% thiophanate methyl wettable powder 1000 times liquid) New high lipid film 800 times liquid, Spraying 50-70 kilograms of medicinal solution per acre can effectively kill and treat scab.

4. Collect at the right time. When the wheat matures, it is necessary to harvest, thresh, bask in the sun, and return it to the warehouse in time to prevent the wheat from raining in the later period and the disease from spreading in the wheat pile.