July Tea Farming
In July, the temperature gradually increased, which facilitates the occurrence of diseases, pests and weeds in tea gardens. The current focus of tea farming is the prevention and control of pests and diseases in tea gardens.
1. Pest control. At present, the main insect pests are the second generation of black locust whitefly, small green leafhopper, tea orange borer, and Changbai white worm. The diseases include tea leaf blight and tea anthracnose. Reference control agents and dosages are as follows: The second generation of black locust mealybugs: 10% imidacloprid 15-20 g/mu; 25% bufalin 50g/mu. Fake eye small green leafhopper (peak period): 10% imidacloprid 15-20 g/mu; 25% buprofezin 30g/mu; Tiantai 40-50 g/mu; 90% Wanling powder 20-30 g/mu. Tea orange soup: 15% broom net 30ml/mu; 1.8% worm light 20-25 ml/mu; Sai Dan 50ml/mu. The second generation of Changbaijing: 10% imidacloprid 15g/mu; 25% bufalin 50g/mu. Camellia leaf blight: 75% chlorothalonil 75-100 g/mu; 50% carbendazim, 50% thiophanate 75-100 g/mu. Tea anthracnose: 75% thiophanate-methyl wettable powder 75-100 g/mu; 50% Benzene wettable powder 50-75 g/mu.
2, grass damage prevention. Most of the weeds in tea gardens grow in summer. Herbicidal weeding in tea plantations can generally be combined with shallow ploughing and deep ploughing in tea gardens, but herbicides should be manually removed or sprayed separately during the vigorous growing season of weeds. In recent years, the use of herbicides in tea plants has become more common. Common herbicides are glyphosate, Gramoxone, Praxanthine. Spraying period should be controlled in the three to four leaf stage of weeds, and the coverage rate should be about 70%. However, attention should be paid to the drug concentration. It is best not to spray the liquid on the tea tree when using.
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