1. Spraying water: After spraying the wrong pesticide or causing phytotoxicity, if it is found early, when the liquid is not completely infiltrated or absorbed into the plant, it can be quickly sprayed with water to wash the surface of the damaged plant. If it is caused by acidic agents, add appropriate amount of grass ash or 0.1% quicklime when spraying water; the phytotoxicity caused by alkaline agents, when adding water, add appropriate amount of vinegar to neutralize or dissolve the agent. At the same time, it is necessary to pay attention to the ventilation of the greenhouse, and to reduce the temperature and humidity to facilitate the discharge of harmful gases.
2, watering and detoxification: the application of herbicides under the root and submucosal application of some pesticides, can be properly watered or serial irrigation to reduce the harmful substances in the roots. At the same time, after watering, it can increase the cell water in the plant, promote metabolism, reduce the relative content of harmful substances, and reduce the degree of phytotoxicity.
3. Removal of damaged branches and leaves: After the leaves are phytotoxic, the leaves of chlorotic discoloration should be removed in time to prevent the penetration of the pharmaceutical agent in the plant.
4, spraying mitigating agent: such as spraying "92" 40 ppm solution, can alleviate the phytotoxicity caused by plant growth regulators, herbicides; 0.2% soap liquid can alleviate the phytotoxicity caused by organophosphorus pesticides; 0.5% quicklime Water can alleviate the phytotoxicity caused by copper preparations.
5, fertilizer to promote seedlings: appropriate amount of quick-acting nitrogen fertilizer or quick-acting compound fertilizer, can also spray full-nutrient foliar fertilizer, promote seedling rejuvenation, reduce the degree of phytotoxicity, and gradually restore the normal growth of plants.
2, watering and detoxification: the application of herbicides under the root and submucosal application of some pesticides, can be properly watered or serial irrigation to reduce the harmful substances in the roots. At the same time, after watering, it can increase the cell water in the plant, promote metabolism, reduce the relative content of harmful substances, and reduce the degree of phytotoxicity.
3. Removal of damaged branches and leaves: After the leaves are phytotoxic, the leaves of chlorotic discoloration should be removed in time to prevent the penetration of the pharmaceutical agent in the plant.
4, spraying mitigating agent: such as spraying "92" 40 ppm solution, can alleviate the phytotoxicity caused by plant growth regulators, herbicides; 0.2% soap liquid can alleviate the phytotoxicity caused by organophosphorus pesticides; 0.5% quicklime Water can alleviate the phytotoxicity caused by copper preparations.
5, fertilizer to promote seedlings: appropriate amount of quick-acting nitrogen fertilizer or quick-acting compound fertilizer, can also spray full-nutrient foliar fertilizer, promote seedling rejuvenation, reduce the degree of phytotoxicity, and gradually restore the normal growth of plants.
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