How to Treat Tea Plant Leaf Drop Disease? A Detailed Guide to Prevention and Control Methods
The tea plant is a plant that can produce tea leaves and prefers a warm, humid climate environment, so how do you treat tea plant leaf drop disease?
1. Growth habits of the tea plant
The tea plant is a shrub or small tree of the Theaceae family, Camellia genus. Southwest China is the origin of the tea plant. Currently, 60 countries around the world have introduced and cultivated tea plants, and in tropical regions there are also tree-type tea plants reaching 15-30 m in height.
The tea plant is a light-loving plant. Light is the primary condition for the tea plant's survival; it can be neither too strong nor too weak. The tea plant has a special preference for ultraviolet light, which is why high mountains produce good tea.
Tea plants can be divided into three types by tree form: tree type, shrub type and small tree type.
2. How do you treat tea plant leaf drop disease?
Tea plant leaf drop may be caused by excessively low temperatures, leaf blight and other reasons. Tea plants generally may drop leaves due to frost at temperatures below 10 degrees C, so the temperature needs to be raised; if it is caused by leaf blight, organic fertilizer can be applied, leaf surface humidity reduced, and chemical agents used for prevention and control.
3. Pest and disease control of tea plants
1. Reasonable close planting is needed. Generally, the single-row strip planting method is used, with a row spacing of 1.5 m, a clump spacing of 0.33 m, 3 plants per clump, and 4000 seedlings planted per mu.
2. The protection of parasitic and predatory insects can be strengthened. A certain amount of vegetation should be retained around the tea garden, attention should be paid to protecting biological habitats, and natural enemies of pests such as Trichogramma, tea garden spiders and Chilocorus kuwanae should be protected.
3. When using chemical agents to kill insects, pesticides must be applied strictly according to the control thresholds; do not rush to apply pesticides as soon as insects or diseases are seen.