In rainy weather, due to the high humidity in the shed, spraying of pesticides will increase the humidity in the shed and cause more diseases. In this case, powder can be sprayed for prevention and control. Before the spraying, the shed must be sealed to achieve Good results. Spraying should be done in the evening or in the morning. You can spray 50% chlorothalonil dust. In the morning, you can open the air outlet about 2 hours after spraying. If you spray in the evening, you can open the ventilation the next morning.
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