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Fruit trees sprayed with pesticides are contraindicated
There are three things to note when spraying mixed pesticides to fruit trees: First, the acid and alkali cannot be mixed to prevent neutralization and reduce the efficacy. Some homologous pesticides cannot be opacified. For example, lime sulfur and Bordeaux mixture are alkaline and cannot be mixed. The second is that some pesticides cannot be mixed and can only be sprayed separately. Although some pesticides can be mixed spray, but 2-3 are appropriate. If more than one mix, increase the concentration, it will produce phytotoxicity. Third, when several kinds of pesticides that can be mixed are mixed, the concentrations of various pesticides must be appropriately reduced to prevent the concentration of the pesticides being too high after mixing and the occurrence of phytotoxicity.