In the production of tea gardens, the method of comprehensive prevention and control of tea plant diseases and pests is adopted to reduce the number of insecticides and insecticides, reduce the pesticide residues in tea and ensure the quality of tea. The combination of agricultural measures and pesticide control can achieve a multiplier effect.
The approach taken by agricultural measures is:
1. In early October of each year, organic fertilizer and compound fertilizer are applied in the tea garden, 200 kg of cake fertilizer or 50 kg of compound fertilizer is imported to increase the resilience of tea plants.
2. Qualified and batch-picking teas every quarter to prevent or reduce high quality foods for pests.
3. Lightly trimming the tea garden after the end of the spring tea has a significant effect on the prevention and control of the second generation of tea leaflets.
4. Retained summer tea, and applied pesticides once to prevent tea leaf pests, which are dominated by small green leafhoppers. Tea was completely misappropriated.
5, artificial killing point hair type tea pests.
6, do a good job of weeding in the tea garden, effectively eradicate the escape or hiding places of tea green leafhoppers and other pests.
The main pests of tea plants include tea leafhoppers, cockroaches and moths, tea pods, etc. In the tea production season, each year, only after the spring tea is lightly trimmed and the summer tea is stopped for harvest, the tea green leafhopper is comprehensively treated with pesticides once. In pesticide control:
1. Insist on spraying pesticides when tea green leafhoppers harm the prevention and control indicators. After long-term observation and practice, lightly pruning after the end of spring tea, spraying tea to prevent tea green leafhoppers when the tea buds are exposed, has the best effect.
2, in strict accordance with the pesticide concentration requirements of the pesticide instructions, never arbitrarily increase or decrease the dilution concentration of the liquid, acres of tea spraying liquid is about 50 kg.
3, to achieve rotation (alternate) use of pesticide species, pesticides used in recent years have killed the enemy, imidacloprid, phoxim and other pesticides.
4. When the acceptance of fresh leaves is detected, the mining personnel will be reported to report on the pests and provide reference for selecting and controlling pests.
5. In mid-to-mid-October of each year, according to the situation of pests and diseases in the tea plantation in the same year, the park will be fully enclosed with a self-fried Baume 0.5-degree lime sulfur compound liquid solution every other year or every year after the end of autumn tea.
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