진단 결과
설명
The plant shows white, cottony waxy masses along the stems and in the crevices, a classic sign of a mealybug infestation. Mealybugs are sap-sucking insects that excrete honeydew, which can lead to sooty mold and weakened plant growth. On succulents, these pests hide in dense growth, at leaf joints, and under old growth, making them hard to eradicate with simple surface cleaning. Over time, a heavy infestation causes yellowing, stunted growth, and eventual dieback if not controlled. Quick, thorough action is required to prevent spread to nearby plants and to protect root health as the pests can also colonize the soil and roots.
해결 방법
3. Prevention, sanitation, and biological control for long-term suppression: After clearing an infestation, shift to preventive practices and, where possible, biological control to maintain ongoing suppression. Quarantine new plants for at least 2–4 weeks away from established succulents to catch any latent pests. When repotting, use a clean pot and fresh, well-draining soil; discard old soil and sanitize tools and containers with 70% alcohol. Improve air circulation around the plant and avoid overwatering; mealybugs thrive in damp, crowded conditions. Regularly inspect nearby plants and remove any that show signs of infestation. Wipe down plant surfaces with a mild alcohol solution or soapy water every few weeks to deter re-accumulation. Consider releasing natural predators such as Cryptolaemus montrouzieri (mealybug destroyer) or Leptomastix dactylopii in appropriate environments (greenhouses or enclosed collections) where permitted; these beneficial insects feed on mealybugs and can provide sustained control. If biological control isn’t feasible, rely on diligent manual removal combined with rotating treatments and strict sanitation, avoiding broad-spectrum pesticides that kill beneficials. Maintain a monitoring routine—inspect every 1–2 weeks, watch for honeydew and sooty mold as early warning signs, and adjust care (watering, light, air circulation) to reduce pest suitability. With consistent care, the plant can regain vigor; in severe or long-standing cases, pruning away heavily damaged growth or even replacing the plant may be necessary if root or crown tissue is compromised.
안내
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