Early Spring Vegetable Seedling Disease Prevention and Control

1. Seed Disinfection: Use 30% seedlings for enemies wettable powder seed dressing, the amount of 0.4% of the seed amount; or soak for 30 minutes with 0.1% potassium permanganate solution, can kill the seeds of the bacteria.

2. Cover the cover with medicine soil: Using disease-free new soil, press 20 grams of slime to 20 kg of fine soil, mix the powdered soil, spread one third to the surface, and cover the seeds with the other two-thirds after sowing. Above.

3. Control seedbed temperature and humidity: After sowing, no ventilation, bed temperature to maintain 25 ~ 30 °C, bed soil to see dry see wet, reduce the bed temperature after emergence, during the day 20 ~ 25 °C, night 10 ~ 13 °C. Watering needs to be done on a sunny morning.

4. Chemical control: When disease-free seedlings are seedlings, fungicides with 1600 times copper master or 600 times chlorothalonil can be used in turn to spray fungicides which are mainly protective. They can be applied once every 7 to 10 days. When the seedlings are found to have diseased seedlings, they should be immediately unplugged and sprayed with Triterpene 800 times or Bitterness 1000 times or 600 times to kill the treatment of fungicides, 5 to 7 days for 1 time.

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