Technical points for controlling diseases and insect pests in wheat sowing

The sowing period of wheat is a critical time for managing pests and diseases, as effective control during this phase not only helps reduce pest problems in the early growth stages but also lays a strong foundation for long-term crop protection. During this time, the main targets for disease and pest control include sheath blight, powdery mildew, smut, full-bleeding disease, cockroaches, and golden nematodes. The following are the primary methods used to manage these issues. First, agricultural practices play a key role in disease and pest prevention. One important method is seed treatment. This includes selecting high-quality, disease-resistant varieties, coating seeds with a mixture of pesticides, fungicides, micro-nutrients, and plant growth regulators, which can provide long-lasting protection and even act as a fertilizer. Another technique is soaking seeds in biogas slurry, which enhances the plant's resistance. To do this, place the seeds in a breathable, durable bag (around 15–20 kg per bag), submerge it in a biogas digester for 12 hours, then rinse and dry before sowing. In addition, proper fertilization is essential. Combining deep plowing with the use of decomposed organic manure helps improve soil health, promote beneficial microorganisms, and increase the plant’s ability to resist harmful organisms. Timely sowing, especially delaying it slightly without affecting yield, can also help reduce disease incidence and limit the spread of pathogens. Removing weeds, dead branches, and fallen leaves from the field is another effective measure that reduces the risk of disease and pest infestations. Second, chemical control is often necessary when the threat is severe. For soil-borne diseases like wheat rot and sheath blight, applying 1 kg of 50% carbendazim WP and 1 kg of 15% triadimefon WP per 100 liters of water, or 1 kg of 25% triazole ketone EC per 100 liters, can be effective. These mixtures should be sprayed on the soil surface and then incorporated through plowing. For ground pests, mixing 0.25–0.3 kg of 50% phoxim EC or 40% methyl parathion with 1–2 kg of fine soil creates a toxic bait that can be evenly distributed before plowing. Chemical seed treatments are also widely used. Depending on local conditions, appropriate insecticides and fungicides should be selected. For example, 100g of 15% triadimefon WP or 60g of 25% triadimefon wettable powder per 50kg of seeds can be used for controlling stripe rust and powdery mildew. In areas prone to sheath blight, 33% Lactobacillus wettable powder at 0.25% of seed weight is recommended. For common pests such as wireworms, aphids, and dwarf viruses, 150g of 25% propiconazole mixed with 50kg of seeds is effective. In general areas, 40% methyl isofenphos can be applied at 50–50kg per 40–50kg of seeds, by spraying the solution onto the seeds and allowing them to dry before sowing. Important precautions for seed dressing include: mixing insecticides first, waiting 3–4 hours before adding fungicides; using triadimefon for dry treatments to avoid phytotoxicity; avoiding mixing with other additives unless necessary; limiting the number of chemicals to prevent toxicity; and strictly following safety procedures to protect humans and animals. By combining these agricultural and chemical methods, farmers can effectively manage pests and diseases during the critical wheat sowing period, ensuring healthier crops and better yields.

Compound Water Retention Agent Thickener

Natural Water Retention thickener,Food Grade Thickening Agent,Food Grade Water Retention Agent

Henan chinamian foods CO.LTD , https://www.ooossooo.com