Spider Mites
🔎 依症狀查找
關於這種疾病
Spider mites are tiny pests that proliferate rapidly in hot, dry conditions, feeding on leaf undersides and producing fine white or yellow stippling (flecking) on foliage. They are common on bonsai such as pine, maple, and azalea.
主要症狀
- Fine silky webbing is visible on leaf undersides
- Fine white or yellow stippling (flecking) spreads across the upper leaf surface
- Entire leaves take on a bleached, dull appearance and lose their gloss
- Symptoms can spread rapidly from midsummer through peak summer heat
主要原因
- Rapid mite population increase in hot and dry conditions
- Insufficient watering leading to excessively dry foliage and soil
- Poor air circulation in enclosed growing environments
- Insufficient leaf misting when trees are kept under eaves away from rain
預防（栽培環境與日常管理）
Water consistently from mid-summer onward and mist foliage regularly to prevent leaf desiccation. Choose a position with good air flow and partial shade to avoid excessive drying. Inspect leaf undersides regularly for early detection.
相關圖鑑
→ 查看該動物的品種圖鑑就醫建議
觀察情況，若惡化請諮詢專賣店專賣店·園藝可做的處理？
Specialist bonsai nurseries and growers can advise on identifying mite presence, managing the tree according to its species, and adjusting placement and watering during hot dry periods.
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- Black Pine Bud Pinching and Annual Tree Form Management | Bud Pinching Timing, Style-Specific Management (Upright, Slanting, Cascade), and Tree Age & Cultivation Years
- 6 Recommended Bonsai Species for Beginners | Guide by Difficulty Level