Second choice
Choose the appropriate dust agent to control cucumber downy mildew, tomato late blight, use 10% antifungal agent or 5% chlorothalonil dust agent; control cucumber anthracnose, black heart disease, choose 5% chlorothalonil or 12% The carbon charcoal dust agent; control cucumber bacterial angular spot, choose 10% of the B dust agent; prevention vegetable gray mold, leaf mold, early blight and late blight, use 12% of the benefits of dust.
Choosing the right duster should adopt domestically-produced 5 or 10 hand-type powder dusters. Before the spraying, the shed was closed, and then 1 kg of powder was sprayed for each acre. The pesticide was put into a duster kit and the amount of powder discharged was adjusted to about 200 grams per minute.
Two attention
Pay attention to the time of spraying should be sunny in the morning or late evening application, cloudy and rainy days can be sprayed. The effect of applying pesticides is best after closing the shed in the evening. In the sunny morning to the afternoon when the sunlight is strong, the dustproof effect is low.
Pay attention to the spraying method Spraying powder against vegetables, whether uniform or not, the effect is very poor, only the effect of uniform air spray is good. If the air spray is not uniform, part of the powder cannot be well dispersed and the control effect will be reduced.
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