The corn seedling stage pests of the control object mainly control Mongolian gray weevil, black velvet chafer, net-sand sand dive and prevent gold worms and cockroaches. The disease of maize seedlings should be based on the control of the smut fungus of corn smut and the stalk-based rot of Pythium oxysporum and Fusarium graminearum.
Prevention and control methods The prevention and control of pests and diseases in maize seedlings should adhere to the principle of “mainly prevention and comprehensive preventionâ€, focusing on agricultural control, selecting resistant varieties, making seed treatment, rational fertilization, appropriate selection of chemical control, and effectively controlling and reducing seedlings. The occurrence and harm of diseases and insect pests. Use strong varieties with strong resistance, 1-2 days before sowing, to increase the activity of enzymes, increase the application of agricultural fertilizer and phosphorus and potassium fertilizer; mix 200g seeds with 20% of rusting emulsion 200ml to control smut and top rot ; 5% phoxim emulsifiable concentrate 200-250 grams per acre plus water 10 times, sprayed in 25-30 kg of fine soil mixed into toxic soil, applied ridges, then shallow sputum, or with 3% carbofuran granules, or 5% phoxim granules, 2.5-3 kg per mu of treated soil, and treat both golden worms and cockroaches; seed coats, 20% Fokker, 1 kg of cytosol can be mixed with 35-45 kg of seeds, which can prevent diseases and diseases .
Reasonable close planting ensures that there is sufficient nutrient area per plant and strengthens field management. Foliar spray in the 4-5 leaf stage of maize to prevent zinc deficiency and enhance the disease resistance of plants.
Prevention and control methods The prevention and control of pests and diseases in maize seedlings should adhere to the principle of “mainly prevention and comprehensive preventionâ€, focusing on agricultural control, selecting resistant varieties, making seed treatment, rational fertilization, appropriate selection of chemical control, and effectively controlling and reducing seedlings. The occurrence and harm of diseases and insect pests. Use strong varieties with strong resistance, 1-2 days before sowing, to increase the activity of enzymes, increase the application of agricultural fertilizer and phosphorus and potassium fertilizer; mix 200g seeds with 20% of rusting emulsion 200ml to control smut and top rot ; 5% phoxim emulsifiable concentrate 200-250 grams per acre plus water 10 times, sprayed in 25-30 kg of fine soil mixed into toxic soil, applied ridges, then shallow sputum, or with 3% carbofuran granules, or 5% phoxim granules, 2.5-3 kg per mu of treated soil, and treat both golden worms and cockroaches; seed coats, 20% Fokker, 1 kg of cytosol can be mixed with 35-45 kg of seeds, which can prevent diseases and diseases .
Reasonable close planting ensures that there is sufficient nutrient area per plant and strengthens field management. Foliar spray in the 4-5 leaf stage of maize to prevent zinc deficiency and enhance the disease resistance of plants.
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