The Causes and Treatment Methods of Tea (T-J) Disease
Today's focus is to introduce the causes and treatment methods of tea (T-J) disease in plant cultivation tips. Next, the editor will provide an introduction.
The Causes and Treatment Methods of Tea (T-J) Disease
Severe ponding in tea gardens, frequent rainy and foggy weather are most conducive to the development of disease, especially in high mountain tea areas where (T-J) disease occurs. Additionally, tea plants that are weak, lack management, are over-harvested, suffer from frost damage and spring cold, are severely infested with pests, or have excessive application of nitrogenous fertilizers are prone to this disease. Control measures include spraying benomyl, methyl thiophanate methyl suspension, charactrin, chlorothalonil, and chlorothalonil suspension.
Causes of Tea (T-J) Disease
Severe ponding in tea gardens, frequent rainy and foggy weather are most conducive to the development of disease, especially in high mountain tea areas where (T-J) disease occurs. Moreover, tea gardens with weak plants, lack of management, over-harvesting, frost damage and spring cold, severe pest infestations, and excessive use of nitrogenous fertilizers are susceptible to this disease.
Symptoms of Tea (T-J) Disease
Tea (T-J) disease affects the growth of mature leaves, tender and old leaves can also be affected. It usually starts from the edges or tips of the leaves, appearing as dark green water-soaked spots, then gradually expanding into large, irregular-shaped lesions that are brownish-yellow or light brown, and finally turning grayish-white with small black dots on the surface. Severe cases can lead to leaf drop.
Treatment of Tea (T-J) Disease
Treatment of (T-J) disease requires symptomatic and active antibacterial treatment. Currently, the main medication used is penicillin. Aminoglycosides or tetracyclines, chloramphenicol also show good effects. For the skin form of (T-J), penicillin can be administered via intramuscular injection.
However, a drug sensitivity test should be performed before medication to avoid allergies. For those allergic to penicillin, other effective drugs can be used for treatment. For severe cases or cases with malignant edema, antibiotics can be administered intravenously, which shows significant therapeutic effects and should be taken as prescribed.
Prevention and Control Methods for Tea (T-J) Disease
Choose disease-resistant varieties such as Yunnan Large Leaf, Maocai, Meizhan, Assam Large Leaf, Taiwan Tea No. 13, and Kumquat. Apply sufficient base fertilizer, appropriately increase phosphorus and potassium fertilizers to enhance disease resistance, maintain good ventilation, and promptly remove diseased leaves.
The appropriate period for preventing and controlling this disease is before and after the rainy seasons in May-June and July-August. Spraying benomyl, methyl thiophanate methyl suspension, charactrin, chlorothalonil, and chlorothalonil suspension (Shun Tian Xing No. 1) is recommended. During non-harvesting periods, you can also spray green copper emulsion, green protect suspension, Jiaru农, and half-strength lime Bordeaux mixture.
This article shares a comprehensive explanation of the causes and treatment methods of tea (T-J) disease, hoping it can act as a catalyst to solve your problems with green plants.