When selecting pesticides correctly and selecting pesticides, it is necessary to understand their characteristics and strictly follow the scope of prevention and treatment indicated by the label. When buying, you should prevent counterfeit and shoddy products and ask for a purchase invoice or credit card.
Correct calculation of accurate weighing, to avoid excessive use of pesticides, pay attention to the active ingredient content of the agent, accurately match the concentration of the pharmaceutical liquid, do not arbitrarily increase the concentration and increase the number of applications.
When formulating a scientific preparation, prepare the mother liquor first. Add half of the water to the medicine box, then add the mother liquor, then add enough water to dilute to the required concentration. Stir well when mixing, and add some adhesive. Improve the physical properties of the liquid.
Scientific compounding of mixed pesticides must have clear targets and requirements for prevention and control. After compounding, it is necessary to reduce the cost of prevention and control, and to increase efficiency and expand the scope of prevention and control; it is necessary to be efficient, low-toxic and low-residue, and to ensure the safety of agricultural products. When mixing pesticides, pay attention to the negative reactions between pesticides, and not interfere with physical, chemical or biological effects. Generally, alkaline pesticides and acidic pesticides are not mixed, microbial insecticides and chemical fungicides, microbial fungicides are mixed, copper-containing pesticides and zinc-containing pesticides are mixed.
Pay attention to the climatic temperature is too high, the weather is too hot, the humidity is too large, the rain and dew are not dry, the wind speed is too large, do not apply medicine when it is raining. It is also necessary to avoid the use of pesticides during the sensitive period of the crop.
Adjust the spray device, evenly spray the knapsack sprayer, change the conical nozzle to the fan-type nozzle, and change the serpentine spray to the linear spray to reduce the re-spray and improve the spray quality. When spraying, consider the wind direction, pay attention to the protection of nearby sensitive crops, and at the same time, the spray should be even, the fog should be fine, and evenly. The medicine should be thoroughly cleaned before and after use.
Correct calculation of accurate weighing, to avoid excessive use of pesticides, pay attention to the active ingredient content of the agent, accurately match the concentration of the pharmaceutical liquid, do not arbitrarily increase the concentration and increase the number of applications.
When formulating a scientific preparation, prepare the mother liquor first. Add half of the water to the medicine box, then add the mother liquor, then add enough water to dilute to the required concentration. Stir well when mixing, and add some adhesive. Improve the physical properties of the liquid.
Scientific compounding of mixed pesticides must have clear targets and requirements for prevention and control. After compounding, it is necessary to reduce the cost of prevention and control, and to increase efficiency and expand the scope of prevention and control; it is necessary to be efficient, low-toxic and low-residue, and to ensure the safety of agricultural products. When mixing pesticides, pay attention to the negative reactions between pesticides, and not interfere with physical, chemical or biological effects. Generally, alkaline pesticides and acidic pesticides are not mixed, microbial insecticides and chemical fungicides, microbial fungicides are mixed, copper-containing pesticides and zinc-containing pesticides are mixed.
Pay attention to the climatic temperature is too high, the weather is too hot, the humidity is too large, the rain and dew are not dry, the wind speed is too large, do not apply medicine when it is raining. It is also necessary to avoid the use of pesticides during the sensitive period of the crop.
Adjust the spray device, evenly spray the knapsack sprayer, change the conical nozzle to the fan-type nozzle, and change the serpentine spray to the linear spray to reduce the re-spray and improve the spray quality. When spraying, consider the wind direction, pay attention to the protection of nearby sensitive crops, and at the same time, the spray should be even, the fog should be fine, and evenly. The medicine should be thoroughly cleaned before and after use.
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