1 The main pests and diseases of tea include over 50 kinds of tea-leaf teapots, green tealeaf tealeaves, teacup caterpillars, samovar teapots, sorghum tealeaves, tea aphids, bud blight, and leaf blight.
2 Strengthen quarantine, scientifically select species for strict quarantine, prevent quarantine objects from being introduced into new tea gardens, combine local climate, major pests and diseases, rationally adjust species distribution, optimize tea structure, and select and popularize plant varieties resistant to pests and diseases.
3 Reasonable fertilization Scientific and reasonable balance of fertilization, the implementation of "Pig - marshes - tea" and other ecological models, increase organic fertilizer, improve plant resistance to pests and diseases.
4 Scientific pruning According to the tree vigor and pest control requirements, scientific pruning to reduce the base of the occurrence of pests. Generally, light trimming is performed in the early spring and heavy trimming is performed in the autumn. In the tea gardens where serious damage and senescence occur in the tea horns of the horns of the genus Chaya, summer cuts or table rakes are performed after picking the spring tea, avoiding the peak period of damage and damage of the adults. Its living environment
5 Timely picking and increasing the picking strength can improve the quality of tea, worsen the nutritional conditions of pests and diseases, reduce the density of tea pests, and inhibit the occurrence of budding pests and diseases.
6 Physical prevention and control Light trapping Use the phototaxis of pests in tea gardens. Install a frequency-vibration insecticidal lamp to trap and kill. 30 to 50 acres of tea plantation light 1 lamp, and the lower end of the lamp is 20 to 30 cm higher than the tea tree top leaves. The swatch trapping and killing utilizes the chromogenic properties of some insect pests, and hangs yellow plates to trap and kill pests such as tea-leaf teapots, green leafhoppers, and tea grasshoppers. Mu is placed on 25 to 30 yellow boards, and the height of the suspension is 0 to 10 cm away from the tea. Sex killing using artificial synthetic pheromone to kill male moths, destroy the normal sex ratio of natural populations, and control pests
7 Manually kill artificial traps or remove pests.
8 The use of pesticides to strengthen the field investigation, seize the best time to use drugs, the right medicine, rotating medication, pay attention to spray technology, control the use of pesticides in order to improve the control effect, but will not leave pesticides. Can not arbitrarily increase the amount of medication to avoid pest resistance. During the spraying of pesticides, picking of tea leaves is strictly prohibited.
Summary: Tea gardens should use biological control and physical control techniques as much as possible to protect the environment, maintain natural enemies, and vigorously promote the prevention and control of natural enemies, and reduce the potential safety hazards caused by the application of chemical pesticides to tea products. When pesticides must be used in production, pesticides with short safety intervals with low toxicity and low residues and countries that have not been banned, such as lambda-cyhalothrin and bifenthrin, pose a great safety risk in tea plantations. Applied in tea gardens.
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