Common Diseases and Control Methods of Golden万年草
Golden万年草 is deeply loved by succulent enthusiasts for its golden leaves, but plants often wither due to diseases during maintenance. This article focuses on two most common diseases, providing in-depth analysis of their symptoms and scientific control measures to help you create a healthy plant landscape.
Complete Solution for Golden万年草 Sooty Mold
Symptoms of the Three Stages of Sooty Mold Infection
Fungal diseases are transmitted through aphid secretions. In the early stage, needle-like black spots appear on the leaves (easy to overlook with the naked eye), in the middle stage, brown soot-like covering forms (photosynthesis is hindered), and in the later stage, the whole plant is wrapped in a black mycelium layer (mortality rate reaches 90%).
Three-Dimensional Control Plan
Prevention stage: Maintain a plant spacing of 5cm or more, wipe the leaf surface with 75% alcohol monthly; Early treatment: Immediately isolate and spray with benomyl (dilute 1:1500), combined with physical removal of diseased leaves; Severe case handling: Soak the roots in potassium permanganate for 20 minutes when repotting.
Golden万年草 Black Rot Defense Strategy
Four Elements for Identifying Black Rot
Watery dark spots appear at the base of the stem (spread within 24 hours), leaves become translucent (cell walls dissolve), roots turn deep brown (accompanied by a foul smell), and the whole plant collapses (vascular bundle completely necrotic).
Five Steps for Emergency Rescue
1. Remove the lesion: Retain the top 5cm of healthy branches. 2. Disinfection treatment: Soak the cut for 30 seconds in hydrogen peroxide. 3. Induce regeneration: Apply indole butyric acid rooting powder. 4. Control water for root growth: Use pure vermiculite substrate. 5. Environmental regulation: Maintain a day-night temperature difference of 8℃ or more.
Building a Systematic Prevention System
Optimal Environmental Parameters
Air humidity ≤60%, sunlight duration 4-6 hours/day, substrate EC value <1.2mS/cm, conduct preventive drenching every spring ( carbendazim + metalaxyl 1:2000 mixture).
Nutritional Enhancement Plan
Supplement calcium and magnesium elements monthly (increase cell wall strength), use biological organic fertilizer containing Bacillus subtilis (build a probiotic barrier), and avoid excessive nitrogen fertilizer (control the fungal affinity of new leaves).
By scientific diagnosis and precise control, combined with the use of smart temperature and humidity monitoring equipment, the disease incidence of Golden万年草 can be reduced by 70%. Regularly rotating the use of fungicides with different mechanisms of action is a key strategy to maintain plant health.