Soft celery celery is a common bacterial soil-borne disease, which is generally susceptible to morbidity in the late growth period when the ridge is shaded and the ground is wet. The pathogens mainly in winter in the soil, invade from the wound through insects, rainwater or irrigation water, and may spread through rainwater or irrigation water after onset. The onset temperature is 25 to 30°C, and there is more rain or watering, higher humidity, and more frequent wounds. Heavy land, low-lying land, and poorly-drained land are seriously affected. To control celery's soft rot, the following measures can be taken:
1. Two or more rotations are implemented. Selection of disease-resistant varieties, disease-free soil nursery.
2, to avoid injury, soil not too high. Pay attention to drainage during the rainy season, minimize watering or stop watering during the onset. Once the diseased plant is found, it should be removed in a timely manner. The diseased spot should be disinfected or exchanged for soil with formalin of 1:20, and some lime can be sprinkled to disinfect the soil.
3, with agricultural anti-751 powder or Fengling soluble powder, according to the seed weight of 1% after seed dressing, or with 2% agricultural anti-751 water 100 times liquid 15 ml 200 g mixed seeds, dried after sowing.
4, in the sowing ditch, per acre with 2% agricultural anti-751 water 5 kg or 1 kg of Fengling soluble powder, add 50 kg of water, evenly sprinkled in the ditch in the celery field.
5, seedling period with Fengling soluble powder 500 grams, add water, 50 kg, irrigation and spraying petiole and base, or when watering, per acre with water added agricultural anti-751 agent 2 ~ 3 kg.
6. In the early stage of the disease, spray the streptomycin or neomycin solution with the concentration of 100-150ppm, spray once every 7 days, and spray 2 or 3 times. It is also possible to use 30% DT wettable powder 400 to 500 times or 70% Dukesson wettable powder 700 times or 77% wettable powder 600 to 800 times to spray the plant and water the root and neck. 10 Sprinkle once a day.
1. Two or more rotations are implemented. Selection of disease-resistant varieties, disease-free soil nursery.
2, to avoid injury, soil not too high. Pay attention to drainage during the rainy season, minimize watering or stop watering during the onset. Once the diseased plant is found, it should be removed in a timely manner. The diseased spot should be disinfected or exchanged for soil with formalin of 1:20, and some lime can be sprinkled to disinfect the soil.
3, with agricultural anti-751 powder or Fengling soluble powder, according to the seed weight of 1% after seed dressing, or with 2% agricultural anti-751 water 100 times liquid 15 ml 200 g mixed seeds, dried after sowing.
4, in the sowing ditch, per acre with 2% agricultural anti-751 water 5 kg or 1 kg of Fengling soluble powder, add 50 kg of water, evenly sprinkled in the ditch in the celery field.
5, seedling period with Fengling soluble powder 500 grams, add water, 50 kg, irrigation and spraying petiole and base, or when watering, per acre with water added agricultural anti-751 agent 2 ~ 3 kg.
6. In the early stage of the disease, spray the streptomycin or neomycin solution with the concentration of 100-150ppm, spray once every 7 days, and spray 2 or 3 times. It is also possible to use 30% DT wettable powder 400 to 500 times or 70% Dukesson wettable powder 700 times or 77% wettable powder 600 to 800 times to spray the plant and water the root and neck. 10 Sprinkle once a day.
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