Control techniques of tea plant diseases and insect pests in Hunan

Tea plants need sufficient nutrients to grow healthily, but excessive fertilization is prohibited, otherwise it will aggravate the occurrence of tea plant diseases and insect pests. Fertilization should be based on the growth of soil and tea trees, using organic fertilizer and biological fertilizer as far as possible, and avoiding using chemical fertilizer.

Step 2 trim and reshape

Tea tree pruning and shaping can not only adjust the tree shape, but also promote tea tree metabolism and produce more new branches, which is beneficial to the prevention and control of tea tree diseases and insect pests.

3. Pest monitoring

Tea garden managers should regularly check the growth of tea leaves, find tea trees with pests and diseases in time, and make rectification. The monitoring of pests and diseases mainly includes traditional detection methods and biotechnology detection of tea buds, tea leaves and tea trees.

4. Biological control

The first choice for controlling tea pests is to control the reproduction of pests by using natural enemies. Biological control mainly includes releasing microorganisms such as predatory insects, parasitic nematodes, fungi and bacteria.

5. Chemical control

For serious pests and diseases, selective pesticides can be used for prevention and control. When using pesticides, they should be used in strict accordance with the instructions of the goods to avoid using pesticides with high toxicity and exceeding the standard.

Step 6 clean up

Tea leaves need cleaning after picking. Pay attention to sanitary conditions when cleaning tea leaves to avoid secondary pollution. A certain amount of tea cleaning agent can be added in the cleaning process, which can effectively remove pesticide residues on the surface of tea.