Selecting the right spraying time to spray the fungicide too late or too early will affect the control effect. According to the occurrence of different diseases and the specific circumstances of the crop in a timely manner medication. It is usually better to use it before the onset of the disease (protective use) or onset of the disease (precautious).
Mastering the number of times the drug is sprayed The number of times the fungicide is sprayed is determined based on the length of the drug's effective period and weather conditions. Usually sprayed once every 10 to 15 days, a total of 2 or 3 sprays. In case of special circumstances, such as rain after application, it should be sprayed once.
Prudent drugs are mixed with fungicides for alkaline pesticides, so they cannot be mixed with insecticides that can easily decompose and deactivate in case of alkaline substances, such as Bordeaux mixture and lime sulfur mixture. There are also some bactericides such as carbendazim that cannot be mixed with Bordeaux mixture, lime sulfur, thiophanate and other fungicides. It will also cause the insecticidal (microbial) microorganisms to lose their physiological activity and insecticidal (bacteriostatic) capacity and fail.
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