Golden finger disease and its prevention and control methods
As a popular succulent plant, Goldfinger is favored by gardening enthusiasts for its unique shape. However, during the maintenance process, diseases such as (T-J) disease and stem rot often cause plants to wither and die. This paper systematically analyzes the key points of prevention and control of golden finger diseases through high-definition real shots + professional prevention and control plans. Key Points for Prevention and Control of Goldfinger (T-J) Disease (T-J) At the beginning of the typical symptoms of the disease, pink sticky secretions appear on the surface of the bulb. As the disease progresses, depressed patches form, and the edges bulge in a concentric ring pattern. In a humid environment, the diseased tissue quickly rots, eventually leading to the entire plant's dryness and death. The disease is highly contagious and requires timely isolation and treatment. (T-J) Disease Prevention and Control System ① Substrate treatment: Planting with calcareous sand and deeply disinfecting with 40 times formaldehyde solution before transplanting.② Environmental regulation: Keep the temperature difference between day and night ≤8℃, and control the air humidity at 50%-65%.③ Pharmaceutical protection: In the early stage of the disease, alternately spray thiophanate methyl (600 times solution) and chlorothalonil (800 times solution), focusing on the joint of stems and joints. Prevention and Control Plan for Golden Finger Stem Rot Disease Incidence Characteristics of Stem Rot Disease There are water-stained gray spots on the base of young plants, brown secretions are produced between the thorns, the internal tissues are liquefied and rotted, and only the epidermis maintains its shape. The disease has the characteristics of long incubation period (3-7 days) and rapid outbreak (50% spread in 24 hours). An early warning mechanism needs to be established. Primary prevention and control of stem rot disease: infuse the roots with 1% copper sulfate solution every month; secondary treatment: immediately remove the disease spot when found, and apply a mixture of charcoal powder + sulfur powder (2:1) to the wound surface; tertiary reconstruction: When changing pots, use boiling water to wash ceramsite, and mix new soil with vermiculite to improve drainage. Goldfinger Systematic Maintenance Strategy Water and fertilizer management Regulates the growth period (June to September) using the "dry and wet cycle method" for watering, combined with fishy water (diluted 20 times)+ potassium dihydrogen phosphate (0.2% solution) for bi-weekly topdressing. Maintain the moisture content of the substrate ≤15% during winter dormancy. The environmental optimization plan builds a stepped planting frame to ensure that the spacing between individual plants is>15cm; installs a micro circulation fan and forcibly ventilated 3 times a day; and uses a sunshade net to control the light intensity in the range of 18,000 - 25,000 Lux.
By establishing a three-level protection system of "prevention-monitoring-governance" and combined with precise environmental control, the incidence of golden finger disease can be effectively reduced. It is recommended to conduct a monthly plant health assessment, focusing on inspecting the base of the thorn seat and new lateral buds, to control the disease in the germination stage.