Prevention and Treatment Methods for巴西木（T-J）Disease
The editor introduces some small experiences of the flower clinic with巴西木, the prevention and treatment methods for巴西木（T-J）disease, and the editor of the website will introduce to the netizens next.
I. Symptoms:
1. The disease causes large leaf spots, and in severe cases, a whole cluster of leaves will dry up, rot, and lose commercial value.
2. The disease harms various types of巴西木. Lesions mainly occur at the leaf tips and edges. Initially, small yellow spots appear on the leaves, which expand into irregular large spots with a reddish-brown color; in the later stage, the center of the lesions turns brown to gray-white, surrounded by many black dots, with a dark-brown edge and a yellow halo around it.
II. Incidence Patterns:
1. The pathogen overwinters in diseased leaves, plants, and residual bodies; it is spread by wind, rain, and splashing water droplets.
2. High temperatures (25°C to 30°C), heavy rain, poor ventilation, high humidity, excessive application of nitrogenous fertilizer, and poor plant growth all favor the onset of the disease.
3. The disease occurs from May to October outdoors, with severe outbreaks during the rainy season; it occurs throughout the year indoors.
III. Prevention and Treatment Methods:
Preventive methods: After rain, promptly drain the water, ventilate and illuminate the greenhouse frequently, reduce moisture and lower temperature; during the growth peak from April to August, apply dilute organic fertilizer or market-specific fertilizers (C-S) once a month, and appropriately increase the application of phosphorus and potassium fertilizers; the cultivation matrix should be loose, permeable, and fertile.
Treatment methods: In the early stage of the disease, spray 50% Shibalke or Shibaojong wettable powder 1000 times, or 10% Shigao water-dispersible granules 3000 times, or 25% Yingde suspension 1000 times, or 25% Tancailing wettable powder 500 times. Repeat every 7-10 days.
The above is the detailed content of the prevention and treatment methods for巴西木（T-J）disease, and it is hoped that it can be helpful to you!