In order to reduce the occurrence of pests and diseases of vegetables in the growing season, certain preventive work should be done before planting. For the pathogens that overwinter in the soil, such as Sclerotinia sclerotiorum, soil disinfection can be carried out with 70% dikesson 800-1000 times solution or 25% loved earth 800-900 times solution; the source of seed-borne bacteria should be before sowing. Seed disinfection with 80% zinc, or 75% chlorothalonil, or 50% thiram, at a dose of 0.3-0.4% of the seed weight to kill pathogens attached to the surface of the seed. The chemical control techniques for various pests and diseases during growth are as follows:
Downy mildew can be treated with 68.75% DuPont Yibao 1000-1200 times liquid, or 52.25% DuPont inhibiting net 2000 times liquid, or 72% DuPont grams lot 600 times liquid exchange spray. When the disease occurs heavier, it can be mixed with 72% DuPont Kelu 600-800 times liquid and 52.2% DuPont anti-flash net 2000-2500 times liquid.
In the early stage of the disease, soft rot can be used with 70% DTM 400 times solution, or 50% dexamethasone 600-700 times solution, or 14% lycopene copper 300-400 times solution, or 40% forty frost copper 500-600 times solution ( Crops sensitive to copper preparations should be used with caution), or 72% agricultural streptomycin, or neomycin oxytocin 3000-4000 times solution, or 57.6% crown bacillus 1000-1500 times solution, or 70% can kill 400- 500 times liquid, the grass petiole and stem base sprayed on the ground.
The viral disease is mainly based on the cure of aphids. It can be controlled with anti-toxic agent No. 1 500-600 times solution combined with 20% virus A, or virus K600 times solution, or 5% bacteria clear 200-300 times solution.
Sclerotinia sclerotiorum can use 70% thiophanate-methyl 600-800 times solution, or 50% chlorhexidine 1500 times solution, or 50% chlorhexidine 1500 times solution, or 50% carbendazim 500-600 times solution, or green Breast copper 600 times liquid prevention.
After the emergence of vegetables, the locusts are sprayed once every 6-7 days, and can be sprayed with 10% imidacloprid 1500-2000 times, or 1500 times solution of mites, or 1000 times of anti-Poly, or 20%. Fuduo 4000-5000 times liquid and other prevention.
Cabbage worm, Plutella xylostella can use 600 units of BT wettable powder 60-75 grams of water plus 30-40 kg per acre, or 2.5% vegetable 1000-1500 times liquid plus 52.25% agricultural land emulsifiable oil 1000-1500 times liquid, or 1.8% Insects 2000-3000 times liquid, or 5% Regent 1500-2000 times liquid, or 10% divided 1000-1500 times liquid, or Baolu 1000-1500 times liquid, or 1.8% avermectin 2000- 3000 times liquid, or 15% DuPont hit 3000-4000 times liquid control.
猿å¶ç”²,黄æ¡è·³ç”² can be controlled with 40% Gao Siben or 48% lesben 1000-1500 times liquid, or 2.5% agricultural land 1500 times liquid.
Downy mildew can be treated with 68.75% DuPont Yibao 1000-1200 times liquid, or 52.25% DuPont inhibiting net 2000 times liquid, or 72% DuPont grams lot 600 times liquid exchange spray. When the disease occurs heavier, it can be mixed with 72% DuPont Kelu 600-800 times liquid and 52.2% DuPont anti-flash net 2000-2500 times liquid.
In the early stage of the disease, soft rot can be used with 70% DTM 400 times solution, or 50% dexamethasone 600-700 times solution, or 14% lycopene copper 300-400 times solution, or 40% forty frost copper 500-600 times solution ( Crops sensitive to copper preparations should be used with caution), or 72% agricultural streptomycin, or neomycin oxytocin 3000-4000 times solution, or 57.6% crown bacillus 1000-1500 times solution, or 70% can kill 400- 500 times liquid, the grass petiole and stem base sprayed on the ground.
The viral disease is mainly based on the cure of aphids. It can be controlled with anti-toxic agent No. 1 500-600 times solution combined with 20% virus A, or virus K600 times solution, or 5% bacteria clear 200-300 times solution.
Sclerotinia sclerotiorum can use 70% thiophanate-methyl 600-800 times solution, or 50% chlorhexidine 1500 times solution, or 50% chlorhexidine 1500 times solution, or 50% carbendazim 500-600 times solution, or green Breast copper 600 times liquid prevention.
After the emergence of vegetables, the locusts are sprayed once every 6-7 days, and can be sprayed with 10% imidacloprid 1500-2000 times, or 1500 times solution of mites, or 1000 times of anti-Poly, or 20%. Fuduo 4000-5000 times liquid and other prevention.
Cabbage worm, Plutella xylostella can use 600 units of BT wettable powder 60-75 grams of water plus 30-40 kg per acre, or 2.5% vegetable 1000-1500 times liquid plus 52.25% agricultural land emulsifiable oil 1000-1500 times liquid, or 1.8% Insects 2000-3000 times liquid, or 5% Regent 1500-2000 times liquid, or 10% divided 1000-1500 times liquid, or Baolu 1000-1500 times liquid, or 1.8% avermectin 2000- 3000 times liquid, or 15% DuPont hit 3000-4000 times liquid control.
猿å¶ç”²,黄æ¡è·³ç”² can be controlled with 40% Gao Siben or 48% lesben 1000-1500 times liquid, or 2.5% agricultural land 1500 times liquid.
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