Pesticide compounding refers to two or more pesticides with different insecticidal (disease) principles, which are mixed and processed in a certain proportion to produce new pesticide varieties.
Practice has proved that pesticide compounding can delay the development of drug resistance; but it does not mean that the combination of two pesticides can achieve this goal. Pesticide compounding must comply with the following standards:
First, the various active ingredients in the mixture cannot be chemically or physically changed. Many pesticides can be used in the field, but they cannot be sold as commodities because the interaction of various components changes after mixing, which affects the stability of the drug. Commercialized blends should be manufactured in a factory through a specific process, rather than simply mixing several ready-to-use pesticides.
Second, the active ingredients in the mixture alone can kill the pests to be controlled.
Third, the degradation rate of the active ingredients in the mixture in soil, groundwater and plants should be as uniform as possible, and should not be too far apart; and the intermediate products in the degradation process can not cause adverse chemical reactions.
Fourth, the principle of insecticide (disease) of each active ingredient cannot be exactly the same.
Fifth, after mixing the active ingredients, the toxicity to mammals cannot be greatly improved.
Sixth, the synergistic effect of each active ingredient is more obvious and better.
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