Anthracnose (Leaf Black Spots)
🔎 依症狀查找
關於這種疾病
A fungal disease characterized by brown to black spots on leaves that can merge and spread across the entire leaf surface. It tends to occur in warm and humid conditions.
主要症狀
- Brown to black small spots may appear on leaves
- Spots enlarge into lesions with indistinct borders
- A yellow halo may appear around lesions
- Multiple lesions may merge, causing the leaf to die back
主要原因
- Hot and humid growing conditions
- Leaves remaining wet from direct watering or rain
- Fungal spores spreading via water droplets or wind
- Poor ventilation leading to stagnant humid air
預防（栽培環境與日常管理）
Water at the base to avoid wetting leaves, and space plants adequately to ensure good airflow. Pay particular attention to ventilation during the humid rainy season and summer.
相關圖鑑
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建議幾天內處理專賣店·園藝可做的處理？
A specialist nursery can help identify the cause of the lesions and provide guidance on improving growing conditions such as ventilation, watering habits, and light exposure. Shifting to suitable conditions is key to recovery.
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