What are the methods for controlling tea plant pests and diseases
The meaning of deep processing of tea. Deep processing of tea refers to the use of fresh tea leaves or finished tea as raw materials, or the use of tea, tea factory rejects and by-products as raw materials, together with corresponding processing techniques and methods, to produce tea-containing products. Tea-containing products may have tea as the main body, or may have other substances as the main body.
The production of green tea food should start from the entire ecosystem of crops, pests, diseases and weeds, comprehensively apply various control technical measures, create ecological and environmental conditions that are unfavorable for the breeding of pests, diseases and weeds and favorable for the reproduction of various natural enemies, maintain the balance of the agricultural ecosystem and biodiversity, and reduce the losses caused by various pests and diseases.
1. Give priority to agricultural measures. Through a series of measures such as selecting disease-resistant and insect-resistant varieties, cultivating strong seedlings, strengthening cultivation management, intertillage and weeding, deep plowing and sun-drying the soil in autumn, cleaning the field, crop rotation, and intercropping and relay intercropping, play a role in preventing and controlling pests, diseases and weeds.
2. Use light, color and sex attractants as much as possible to trap and kill pests, and mechanically capture pests. For diseases, special attention should be paid to early prevention, reducing opportunities for initial infection, and cutting off the cycle of re-infection.
3. Under special circumstances, when pesticides must be used, the guidelines for pesticide use on tea should be followed, and low-toxicity and low-residue targeted agents should be used, but their use should be strictly controlled to non-tea-picking seasons such as the winter garden closure period.
(1) Leafhoppers: apply pesticide for control before the nymph peak periods in May-June and August-September. Control can be carried out with 25% imidacloprid wettable powder, or 100 g/liter bifenthrin emulsifiable concentrate, or 20% fenpropathrin emulsifiable concentrate.
(2) Black citrus whitefly: apply pesticide from mid-to-late May to early October, and control can be carried out with 20% fenpropathrin emulsifiable concentrate or 25% imidacloprid wettable powder.
(3) Tea aphid: apply pesticide in early-to-mid May and from late September to mid-October, and control can be carried out with 25% imidacloprid wettable powder, or 20% azophos?B acephate emulsifiable concentrate, or 20% fenpropathrin emulsifiable concentrate.
(4) Weevils: during the adult outbreak period from May to late June, apply pesticide 1-2 times to the tree canopy and soil surface. Control can be carried out with 27% phoxim?B triazophos emulsifiable concentrate or 20% fenpropathrin emulsifiable concentrate.
(5) Mites: control can be carried out with 20% azophos?B acephate emulsifiable concentrate, or 20% fenpropathrin emulsifiable concentrate, or 25% imidacloprid wettable powder.
(6) Tea blister blight: control can be carried out with 25% duoketone wettable powder or 75% chlorothalonil.
(7) Tea cloud blister leaf blight, tea anthracnose and tea ring spot can be controlled with 70% thiophanate-methyl or 80% carbendazim wettable powder.