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Ecological control The goal of warming and dehumidification is to strengthen ventilation management. Specifically: the morning shed is warmed up in the morning, when the temperature reaches 28 °C ~ 30 °C for 1 hour, the top wind is started, and the air continues to be released at noon, and the temperature is maintained at 20 °C ~ 25 °C. When the temperature reaches 18 °C ~ 20 °C in the afternoon, the vent is closed, the night temperature is maintained at 14 °C ~ 16 °C, and the relative humidity is maintained at 70% ~ 80%. On a cloudy day, you should also ventilate at noon for a short time.
Before the planting and controlling, the seedlings are sprayed with 50% keering WP 1500 times or 50% carbendazim WP 500 times to prevent the bacteria from entering the shed; in the early stage of the disease, 50% keering WP can be used. 2000~3000 times liquid, 45% Tec lot suspension agent 3000~4000 times liquid or 50% puffin WP 1500 times solution, spray once every 7~10 days, spray 3~4 times. Botrytis cinerea is easy to produce drug resistance, and the amount of drug and the number of application should be minimized during prevention and treatment, and attention should be paid to rotation and alternation.
Agricultural control Appropriate application of phosphorus and potassium fertilizer to improve the disease resistance of plants. Promote drip irrigation and submerged dark irrigation technology to prevent flooding. In the early stage of the disease, the residual petals and stigma are removed in time, the diseased leaves and diseased fruits are removed, and the diseased plants are removed to prevent the spread of the disease.
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