Recent Prevention and Control of Tea Plant Diseases and Insect Pests
First, small green leafhoppers are expected to enter the second peak after mid-August, and all tea growers should control the tea plants whose insects have exceeded the standard. The medicines can be controlled with 5% imidacloprid or acetamiprid 1000 times.
Secondly, the tea leaves suffer from brown rust on the leaves of the damaged tea leaves. The leaves are dull and the tea leaves are shriveled. When the leaves are heavy, the buds are dry, a piece of copper is red, and a large amount of fallen leaves are left. It is expected that some tea gardens will appear moderately heavy in late August, and the tea farmers will investigate field pests in the field. Based on the choice of 1.8% abamectin 1500 ~ 2000 times spray control.
Third, tea-tzu is expected to be the fifth generation of tea-tanning prevention and treatment in the appropriate period in late August, the drug can be used 5% A-dimensional salt 2000 times spray control.
4. Diseases such as tea leaf spot disease, tea leaf blight, tea anthracnose and other diseases, which are in high temperature and high humidity, are beneficial to the disease. Some poorly drained tea gardens are in more serious condition. Therefore, it is necessary to do tea drainage and strengthen tea tree management. The agent may be sprayed with 25% ramram 1000-fold or 70% methyl sulfide 800-fold spray.
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