(1) Find out the nature of the bactericide when selecting the bactericide. There are two types of fungicides, one is a protective agent, such fungicides are to prevent the incidence of plants, such as Bordeaux mixture, mancozeb, carbendazim, etc.; the other is a therapeutic agent, is applied after the onset of the plant In order to kill or inhibit the pathogens that invade the plant body, the therapeutic agent has better effect in the early stage of disease, such as anti-jumbo and Baozhida. (2) Bactericide should be sprayed before 9 o'clock in the morning or after 4 o'clock in the afternoon to avoid use under the hot sun. If it is sprayed under the hot sun, the drug can easily decompose and evaporate, which is not conducive to crop absorption. (3) The bactericide cannot be mixed with alkaline pesticides. Do not arbitrarily increase or decrease the use of fungicides and should be used with them. (4) Bactericides are mostly powders, emulsions, and suspensions, which must be diluted before application. When you dilute, release the medicine first, then water, then stir with a stick. When mixing with other pesticides, dilute the fungicide and mix it with other pesticides. (5) The interval for spraying with fungicides is 7-10 days. For agents with poor adhesiveness and poor systemic absorbability, rain falls within 3 hours after spraying and re-spray after rain
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