The first is that Bianbai is more sensitive to copper preparations and does not promote its use or caution. Second, it emphasizes joint prevention and treatment of diseases, especially rust prevention, to prevent cross-repeated infections to improve control effectiveness. Third, when pests and diseases are mixed, they need to be multi-drug. When used in combination, they should be conducted under the guidance of agricultural technicians. Each of them should use pesticides alternately. Fourth, strictly observe the maximum number of pesticides used and safety intervals, and strictly prohibit the use of highly toxic and high residual pesticides and pesticides that are prohibited from use. .
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