Method for rational use of pesticide copper preparation
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1. Use before the onset of bacterial or fungal signs. 2. Adjust the pH of the pesticide to 6 or more when using. 3. Spray evenly on the leaves and fruits of the plants. 4. The efficacy will decrease with the growth of the plant, and there will be a reduction in the wet season, so reuse it when appropriate. 5. The smaller the particle size of the pesticide, the better the effect and the longer the effective period. 6. Avoid mixing with other pesticides. 7. Avoid using when the temperature is high. 8. The low concentration of pesticides is better than the high concentration.
Common "organic copper preparations" on the market mainly include: thiabium copper (longke bacteria), copper rosinate, amber copper citrate (DT), copper humate, copper fatty acid, copper nitronate, copper quinolate, hydrazine Copper, copper naphthenate, copper soap, copper amino acid, copper acetate, copper sulfonate, and the like.
Technical advantages of organic copper preparations: Organic copper preparations are mostly neutral, have better affinity and compatibility, are easy to use and safe to use, and are easy to handle. The copper content of organic copper preparations is lower, and the environment is The pollution is smaller, the impact on the mites is smaller, the impact on the flowering and young fruit of the crop is smaller, and the use is safer and more assured.
Limitations of inorganic copper preparations: Inorganic copper preparations are a common class of bactericidal preparations, which contain such ingredients in many eubacteria-killing agents, but "inorganic copper preparations" have three major limitations and deficiencies: Can not be mixed with other acidic pesticides, because inorganic copper preparations are mostly strongly alkaline; second, it is easy to cause phytotoxicity when used in flowering and young fruit; third, it is easy to cause mites when used on fruit trees (such as red spider, white A large number of proliferation and mites occur in spiders, rust tick and scale insects.