First of all, the physical properties of the compounded pesticide did not change. After mixing, there should be no oil slick, flocculation, sedimentation or discoloration, and no heat or bubble formation. If it is the same powder, or the same granules, fumigants, aerosols, it can be mixed; between different dosage forms For example, wettable powders, emulsifiable concentrates, concentrated emulsions, suspensions, aqueous solvents, etc., which are water-based, should not be mixed.
Secondly, there is no chemical change in the compounded pesticides to avoid phytotoxicity. Many pharmaceutical agents cannot be mixed with alkaline or acidic pesticides. For example, under alkaline conditions such as Bordeaux mixture and stone sulphur mixture, dithioamino groups such as carbamate, pyrethroid insecticide, thiram, and dexame ring. Formic acid fungicides are prone to hydrolysis or complex chemical changes that destroy the original structure. In addition, the combination of stone sulphur and Bordeaux mixture can produce harmful copper sulfide, which also increases the content of soluble copper ions; chlorpyrifos and butachlor cannot be mixed with organic phosphorus and carbamate insecticides.
Again, biopesticides cannot be mixed with fungicides. Under the premise of ensuring the normal use of their original functions, the following complementary effects should be considered as much as possible: compounding insecticides, bactericidal and even herbicides, treating multiple pests and diseases at the same time, or mixing fungicides with different germicidal spectrums to expand prevention and control. The object, to achieve the purpose of reducing the number of application.
Regardless of the mixture of drugs, you should follow the "current use, not long-term release" and "diluted separately, then mixed" provisions, it is best to first test in a small range.
Secondly, there is no chemical change in the compounded pesticides to avoid phytotoxicity. Many pharmaceutical agents cannot be mixed with alkaline or acidic pesticides. For example, under alkaline conditions such as Bordeaux mixture and stone sulphur mixture, dithioamino groups such as carbamate, pyrethroid insecticide, thiram, and dexame ring. Formic acid fungicides are prone to hydrolysis or complex chemical changes that destroy the original structure. In addition, the combination of stone sulphur and Bordeaux mixture can produce harmful copper sulfide, which also increases the content of soluble copper ions; chlorpyrifos and butachlor cannot be mixed with organic phosphorus and carbamate insecticides.
Again, biopesticides cannot be mixed with fungicides. Under the premise of ensuring the normal use of their original functions, the following complementary effects should be considered as much as possible: compounding insecticides, bactericidal and even herbicides, treating multiple pests and diseases at the same time, or mixing fungicides with different germicidal spectrums to expand prevention and control. The object, to achieve the purpose of reducing the number of application.
Regardless of the mixture of drugs, you should follow the "current use, not long-term release" and "diluted separately, then mixed" provisions, it is best to first test in a small range.
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