As the temperature rises, the wheat pests and diseases have entered a high incidence period. At this moment, the prevention and control of wheat pests and diseases is late, so what should we do? To prevent and control wheat pests and diseases, we must first do the seed treatment. Let’s follow the Xiaobian to understand. .
Seed dressing
Wheat seed dressing can control soil-borne diseases, mainly sheath blight, total erosion and root rot. The granules can be mixed with a 3% phenyl ether methylcyclazole suspension seed coating agent.
Soaking method
According to the test, wheat is treated with micro-fertilizer as seed, which can increase yield by more than 10% per mu, and a few plots increase production by 20%-30%. However, the amount of micro-fertilizer is very small, and the seed treatment can be carried out by the following method: zinc fertilizer is used for 3-5 g of zinc sulfate per kg of seed, the concentration of the soaking solution is 0.02%-0.05%, soaking for 12 hours, and drying can be sown. When soaking the boron fertilizer, soak the seeds with 0.01%-0.05% borax or boric acid solution for 6-12 hours; increase the solution concentration during seed dressing. Molybdenum fertilizer use 2-6 grams of ammonium molybdate per kilogram of seed, first dissolve ammonium molybdate with a small amount of warm water, then dilute to the extent of submerged seeds, mix well with the seeds in a tank or bucket, and remove in a cool place. Dry and sow; the concentration of soaking seeds is 0.05% 0.1%, soak the seeds for 12 hours according to the ratio of seeds to fertilizer solution, and remove them for drying. Copper fertilizer is 0.6-1.2 grams of copper sulfate per kilogram, soaking the concentration of 0.01%-0.05%, soaking for 12 hours, and then drying out to sow.
Seed coating
The seed coating is a mechanical or manual method, and the seed coating agent containing various components such as an insecticide , a bactericide, a compound fertilizer, a trace element, a plant growth regulator, a sustained release agent and a film forming agent is uniformly distributed in a certain ratio. Cover the surface of the seed to form a smooth, firm film. Along the surface of the seed, a smooth, firm film is formed. With the germination, germination, emergence and growth of the seeds, the active ingredients in the coating are gradually absorbed by the roots of the plants and transmitted to the various parts of the seedlings, so that the seeds and seedlings can prevent and cure the seed-borne bacteria, soil-borne bacteria and underground and above-ground pests. . The micro-fertilizer in the film can fully exert its effectiveness before the bottom fertilizer borrows. Therefore, the coated seeds grow vigorously at the seedling stage, the leaves are dark green, the roots are developed, and the plants are robust, thereby achieving the purpose of increasing production and income. The following are wheat seedlings prevention and control methods for specific pests and diseases, wheat rust: 15 to 20 days after emergence of wheat, when the diseased leaf rate reaches 10%, and the autumn temperature is high, the rain is too much, immediately spray the leaf rust or powder rust 1000 times The liquid is controlled.
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