Wheat enters the autumn sowing season, and the prevention and control of pests and diseases is the key to harvesting harvests in the coming year. Timely pesticide control is necessary. The China Pesticide Network Xiaobian gives you advice, as shown below: Copper nuts made of all kinds of embossed wire (usually lead brass, such as H59, 3604, 3602). Our daily contact with the embedded knurled copper nuts are processed by precision automatic lathes. The reference standard of embedded knurled copper nut comes from GB/T809, but the technical parameters of all kinds of embedded nuts produced by our company exceed the relevant indexes required by the national standard. Brass Nut,insert nut,knurled nut,injection nut,hex nut Shenzhen Lanejoy Technology Co.,LTD , https://www.grill-grid.com
The control of wheat sowing period to grasp the prevention and control of autumn sowing period can play a multiplier role in controlling the damage of various pests and diseases of wheat.
Main control objects for wheat seed dressing:
First, soil-borne diseases, mainly sheath blight, total eclipse, root rot, these bacteria can survive for many years in the soil, when the seeds begin to germinate after wheat seed dressing, the bacteria can be dip;
The second is systemic disease, mainly stalk smut, smut and smut, the pathogen invades the growth point from the time of seed germination, systematically dips with the growth of wheat plants, and shows signs of damage at the ear stage;
The third is underground pests, mainly cockroaches, cockroaches and golden worms. They bite the roots of wheat in the autumn seedling stage and after returning to green, causing lack of seedlings and ridges. In particular, the former is a plot of dry crops such as corn, peanuts, and sweet potatoes. The food is rich, which is conducive to the occurrence and reproduction of underground pests, which is widespread and serious.
Method of dressing with pesticides Underground pests: Mixing wheat seeds with pesticides and treating soil before sowing is the most effective measure for controlling wheat underground pests. For the general occurrence area of ​​underground pests, the method of chemical dressing can be used for prevention and treatment. 50% phoxim seed dressing can be used, seed dressing is 0.2% of seed amount, and 48% chlorpyrifos EC can be used for seed dressing at 0.3% of seed weight. After mixing, it can be planted for 4-6 hours, which can effectively control underground. Pests. The area where the underground pests are severely affected should be controlled by combination of soil treatment and seed dressing. The soil treatment can be applied to the ground evenly with 3% phoxim granules of 2 to 2.5 kg per acre, and then turned into the soil.
Diseases: Pesticide seed dressing can not only control wheat smut, but also effectively control the occurrence and damage of wheat rust, total eclipse and powdery mildew before winter, and reduce the amount of overwintering bacteria. Scattered smut, smut, root rot, sheath blight, total eclipse, etc., 40% pentachloronitrobenzene can be dry mixed with 0.5% of the weight of the wheat (40 grams per acre) , mix wheat about 8 kg). To control wheat smut, you can also choose 6% tebuconazole (Ricky) suspension 1 bag (10 ml), add water 0.4-0.5 kg, mix 25-35 kg, or 2.5% flufenic acid (suitable Le Shi) Suspending agent is used for seed dressing of wheat seeds at the recommended dosage, which can cure both autumn seedling rust and powdery mildew. Use 15% powder rusting wettable powder to seed dressing 0.2% seed weight or 20% triadimefon emulsifiable concentrate 0.5 kg plus water 2.5 kg, mix 250 kg of wheat seeds, can prevent powdery mildew and leaf rust. In the severely affected area of ​​wheat total eclipse, 12.5% ​​thiabendamine (all etched) suspension agent can be used for seed treatment, which has good control effect on wheat total etch disease. Generally use 1 bag (20 ml) of total etch, first 300-500 ml of water, 10~12.5 kg of seeds can be mixed, and after mixing for 6 to 12 hours, it is beneficial to the drug to play and kill the bacteria. Soak in the shade and dry. In the area of ​​wheat yellow dwarf disease and plexus dwarf disease, imidacloprid can be used to treat seeds, control the transmission of insects, and control the occurrence of yellow dwarf disease and bushy dwarf disease.
A variety of disease and pest mixed areas, it is necessary to vigorously promote the application of fungicides and insecticide compound coating agents or seed dressings for coating or seed treatment. The pesticide network recommends that the appropriate formulation of seed coatings or seed dressings should be selected according to the local main pests and diseases. The dosage is generally the same as that of the single agent in the compounding (mixing) agent.
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