What precautions should be taken when dressing seeds with powder-form pesticides?
How should herbicides be used on tobacco? Please provide guidance. Tobacco has small seeds and slow-growing seedlings, and is often harmed by weeds. The main weeds include: green foxtail, Chinese sprangletop, early barnyardgrass, goosegrass, shortawn foxtail, cocklebur, flatsedge, cleavers, chickweed, plantain, dandelion, and others. Weed control in tobacco fields...
What should be noted when dressing seeds with powder-form pesticides? Please explain.Use powder-form pesticides such as triadimefon, Lüheng No. 2, Hexaguoli, thiram, and Shuangshuang for seed dressing. For example, to treat corn seeds for head smut, triadimefon can be used at 325-400 g per 50 kg of seed; to treat sorghum seeds for head smut, use 130-170 g per 50 kg; to control cucumber blight, 50% thiram WP can be used at 0.4% of seed weight for seed dressing; for seed dressing with Lüheng No. 2 WP, use 4-5 g per kilogram of cucurbit seeds, which can effectively control fungal diseases latent on the seeds, etc. It is best to use a dedicated seed dresser. Weigh the pesticide and seeds in the correct proportion, pour them into the seed dresser, and rotate forward and backward for 10 minutes each to mix evenly. If no seed dresser is available, a plastic bag can be used instead. Pour the pesticide and seeds into the bag, tie the bag tightly, and swing it back and forth, up and down, left and right 50 times. When using this method, note that the plastic bag should not be too large, and the amount of seed loaded should not exceed 2/3 of the bag length, so as to facilitate operation and ensure seed dressing quality.
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