Greenhouse gray botrytis control measures
When the humidity in the greenhouse shed is high, gray mold is easy to occur. The prevention measures are as follows:
1, choose resistant varieties.
2. Strengthen field management. Using a small amount of water to help increase the temperature of the ground. Two to three times of cultivating soil after each harvest to reduce the temperature inside the shed. Timely release dampness. Timely removal of diseased root leaves increased fertilization material and enhanced the disease resistance of Chinese chive.
3, chemical control. Each mu with 10% mildew powder 1000g spray; or use 50% fast-inking WP 1000-1500 times; 50% thiophanate-methyl WP 500 times; 70% mancozeb wettable Powder 500 times spray control, in the initial stage of disease prevention and control every 7 days until the disease control.
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