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Prevention and Rescue of Flower Plant Harm
I. Symptoms of Flowering Plant Harmfulness 1. Acute injury. The occurrence of drug injury is rapid, and the symptoms are obvious. Generally, there are spots, focus, or withering on the leaves. The fruit has spots, deformities, small fruits, and fruit drops; the petals are coked, fallen, and buds are falling; the growth of plants is slow, and even the whole plant is dead. 2. Chronic injury. Symptoms are not obvious and it is not easy to judge in a short time. The general performance is poor development, the leaves are dull, the flowering is postponed, the flowers are small and little, the flower color is lighter, the flowers and fruits are easy to fall, and they are very similar to the symptoms of nutritional deficiency. Second, the prevention of flower plant damage 1, according to the instructions medication. In strict accordance with the requirements of the drug's instruction manual, it is not necessary to use pesticides that are lost due to labeling. Do not arbitrarily increase the drug concentration and dose. If the use of standard doses and concentrations does not achieve the desired control effect, the pesticide species should be replaced. 2. Do not mix pesticides at random so as not to cause injury. Third, the first aid measures for the damage of flower plants Water spray method. If you spray the wrong medicine, you should immediately spray a lot of water to wash the plants; if you use the wrong soil treatment agent, you can use irrigation and drainage alternately to save the solution, after the application of quick-acting fertilizer, promote the recovery of damaged plants. 2. Neutralization and mitigation. If errors occur in the use of drugs and if they are found to be more timely, they can be washed with water and then neutralized with the opposite pesticides under the guidance of scientific and technical personnel. That is, the occurrence of phytotoxicity with acidic pesticides can be neutralized with alkaline pesticides. For example, in the case of phytotoxicity caused by the use of Dimethoate Emulsion, alkaline pesticides such as lime sulfur and methomyl may be used to neutralize the dimethoate, or 200-fold borax solution may be sprayed 1-2 times to alleviate the damage. , so that the plant returned to normal. 3. Spray remedies. The use of dimethyl tetrachloromethane herbicide by the broad-leaved flowering plants will cause the leaves to become white, 50% humic acid sodium granules can be used, first dissolved in a small amount of water, and then 500 times the water, dripping one by one, 3- After 5 days, the leaves gradually recover their function. 4. Harmonization and detoxification. If spraying sulfuric acid to produce phytotoxicity, the concentration of 5%-1% lime can be sprayed to poison. The lack of seedlings can be planted and strengthened. Li Pengxiang Propaganda Station of Anhui Provincial Forestry Department Zip Code: 230001