Prevention and control of diseases and insect pests in growing tea

The meaning of tea deep processing refers to the use of fresh tea leaves, finished tea as raw materials, or tea, tea factory waste products, scraps as raw materials, the use of corresponding processing technology and means to produce tea-containing products. Tea-containing products may take tea as the main body, or other substances as the main body.

The production of green food for tea should proceed from the whole ecosystem such as crop diseases, insect pests and weeds, and comprehensively apply various control techniques to create ecological environment conditions that are not conducive to the breeding of diseases, insect pests and various natural enemies, maintain the balance and biodiversity of agricultural ecosystems, and reduce the losses caused by all kinds of diseases and insect pests.

First, priority should be given to agricultural measures, such as selecting disease-resistant and insect-resistant varieties, cultivating strong seedlings, strengthening cultivation and management, ploughing and weeding, deep turning and drying the soil in autumn, cleaning the countryside, crop rotation, intercropping and interplanting, and a series of measures, such as prevention and control of diseases, insect pests and weeds.

Second, try to use lights, colors and sexual attractants to trap and kill pests and catch pests mechanically. Special attention should be paid to early prevention, reducing the chance of primary infection and cutting off the cycle of re-infection.

3. Under special circumstances, when pesticides must be used, the guidelines for the use of tea pesticides should be observed and the corresponding pesticides with low toxicity and low residues should be used, but the use should be strictly controlled in the non-picking season such as closing the garden in winter.

The main results are as follows: (1) leafhoppers were treated with pesticide before the nymph peak period from May to June and from August to September. 25% imidacloprid wettable powder, or 100g/ liter bifenthrin EC, or 20% fenpropathrin EC can be used for prevention and control.

(2) whitefly whitefly, applied in mid-May and late-early October, can be controlled with 20% fenpropathrin EC or 25% imidacloprid wettable powder.

(3) tea aphids can be treated with 25% imidacloprid wettable powder or 20% azophos in early and mid-May and late September-mid-October. B acetyl methyl EC or 20% fenpropathrin EC for prevention and treatment.

(4) weevil A, during the peak period of adult occurrence from May to late June, the crown and soil surface were applied 1-2 times. Can 27% octyl sulfur be used? B triazophos EC, or 20% cypermethrin EC for prevention and treatment.

(5) mites, 20% azophos? B acetyl methyl EC, or 20% fenpropathrin EC, or 25% imidacloprid wettable powder.

(6) Tea cake disease can be used by more than 25%? B ketone wettable powder, or 75% chlorothalonil.

(7) Tea moire leaf blight, tea anthracnose and tea ring spot can be controlled with 70% methyl topiramate or 80% carbendazim wettable powder.