Principles for the mixing of pesticides
2024-06-26 03:06:05
The combination of scientific and rational pesticides can improve work efficiency, treat several pests and diseases, reduce the amount of drugs, reduce costs, and sometimes improve drug efficacy, reduce toxicity, reduce the resistance of pathogenic pests to chemicals, or control resistant pests. . However, blind mixing and mixing will invalidate and even cause phytotoxic accidents. In order to ensure both control and phytotoxicity, the following principles should be followed for the mixing of pesticides.
1. It is necessary to clarify the purpose of mixing pesticides, and it cannot be mixed for mixing. The mixed use of pesticides should achieve the purpose of increasing efficiency, treating and expanding the scope of prevention and control. If the above objectives are not achieved, they should not be mixed. Otherwise, it will cause waste, and it will not receive the effect it deserves, and it may even cause phytotoxicity.
2. After mixing the pesticides, the original physical and chemical properties can be maintained, and the efficacy (fertilizer effect, hormone) can be exerted; adverse chemical and physical changes should not occur. If the agent is not decomposed after mixing, the emulsifiable concentrate is not destroyed, and the suspension does not cause flocculation or a large amount of precipitation, and can be used in combination.
3. The mixed liquid medicine after mixing should not cause phytotoxicity to the crops. If there is phytotoxicity, it cannot be mixed with each other.
4. After mixing the chemicals, the efficacy of the mixed liquid should be improved, at least not to reduce the efficacy. The components in the mixture are more consistent in the efficacy time, application site and use object, and can fully exert their respective effects.
5. After the agent is mixed, the acute toxicity of the mixture is generally not higher than the original toxicity, that is, the mixed agent cannot be poisoned.
6. Note that in the absence of mixed use, you can first test in a small range to prove that there is no adverse effect before mixing.
Agricultural Technology Center of Fengxiang County, Shaanxi Province Xie Fasuo Jing Fengmei
1. It is necessary to clarify the purpose of mixing pesticides, and it cannot be mixed for mixing. The mixed use of pesticides should achieve the purpose of increasing efficiency, treating and expanding the scope of prevention and control. If the above objectives are not achieved, they should not be mixed. Otherwise, it will cause waste, and it will not receive the effect it deserves, and it may even cause phytotoxicity.
2. After mixing the pesticides, the original physical and chemical properties can be maintained, and the efficacy (fertilizer effect, hormone) can be exerted; adverse chemical and physical changes should not occur. If the agent is not decomposed after mixing, the emulsifiable concentrate is not destroyed, and the suspension does not cause flocculation or a large amount of precipitation, and can be used in combination.
3. The mixed liquid medicine after mixing should not cause phytotoxicity to the crops. If there is phytotoxicity, it cannot be mixed with each other.
4. After mixing the chemicals, the efficacy of the mixed liquid should be improved, at least not to reduce the efficacy. The components in the mixture are more consistent in the efficacy time, application site and use object, and can fully exert their respective effects.
5. After the agent is mixed, the acute toxicity of the mixture is generally not higher than the original toxicity, that is, the mixed agent cannot be poisoned.
6. Note that in the absence of mixed use, you can first test in a small range to prove that there is no adverse effect before mixing.
Agricultural Technology Center of Fengxiang County, Shaanxi Province Xie Fasuo Jing Fengmei
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