When pesticides are used, they often cause phytotoxicity due to improper use of technology. If the remedial measures can be promptly taken against the harm caused by phytotoxicity, the damage caused by the phytotoxicity can be greatly reduced.
Spray water washing agent: due to spray a certain pesticide to make plants and leaves phytotoxicity, can be repeated spraying 2 to 3 times, as much as possible on the surface of the plant to wash away the drug. Or add 0.2% alkaline surface or 0.5% lime water to the sprayed water. Since most pesticides are now susceptible to decomposition and loss due to alkaline substances, decomposition of the chemicals can be accelerated. Spraying water at the same time increases the moisture in the crop cells, dilutes the concentration of the liquid in the crop, and also reduces crop phytotoxicity.
Spraying medicines that can alleviate phytotoxicity: targeted medicines that cause phytotoxicity to crops can be sprayed to relieve the drug, which can greatly reduce the damage caused by the phytotoxicity.
Irrigation and drainage to reduce drug residues: For some herbicide-induced phytotoxicity, appropriate drainage, can reduce drug residues.
Rapidly applying topdressing nitrogen fertilizer: for the damage of foliar lesions, leaf scorch, or plant yellowing, the appropriate amount of urea can be applied according to the soil fertility and crop growth conditions, and phosphorus and potassium fertilizers can be added appropriately to supplement plant nutrition. , Combined with cultivating loose soil, promote root development, and enhance plant resistance to drugs, the effects of seed damage on seedlings, seedlings is very obvious.
Remove phytotoxic parts: When using pesticides such as perfusion, injection, and bandaging on fruit trees to overdosage or over-concentration and produce phytotoxicity, the severed branches should be quickly cut off to avoid further conduction and infiltration of pesticides, and timely irrigation should be performed. Prevent drug injury from continuing to expand.
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