Mealybugs
Mealybugs are soft-bodied, sap-sucking insects covered in a white, waxy coating. They cluster in leaf joints, on stems, and under leaves.
Mogliche Ursachen
Introduction from Infested Plants
Why: Mealybugs commonly arrive on new plants purchased from nurseries or received from others.
Signs to check: White cottony masses appeared after introducing a new plant.
Warm Indoor Conditions
Why: Indoor warmth and lack of natural predators allow mealybug populations to grow unchecked.
Signs to check: Population grows steadily, no natural predators present indoors.
Overfeeding with Nitrogen
Why: Excess nitrogen produces soft, lush growth that is more attractive and vulnerable to mealybugs.
Signs to check: Plant has very lush, soft foliage, mealybugs concentrate on new growth.
Was prufen
- 1Look for white, cottony clusters at leaf joints and stem bases
- 2Check leaf undersides and where leaves meet stems
- 3Look for sticky honeydew residue on and below the plant
- 4Inspect nearby plants for signs of spread
Was du tun kannst
- Isolate the plant from others immediately
- Dab individual mealybugs with a cotton swab dipped in 70% rubbing alcohol
- Spray the entire plant with insecticidal soap, focusing on crevices
- For heavy infestations, apply neem oil solution every 7-10 days
- Repeat treatments for at least 3-4 weeks, as eggs may survive initial applications
Wann Hilfe suchen
- Mealybugs are found on roots (root mealybugs require soil drench treatment)
- Plant is severely weakened with significant leaf drop
- Infestation keeps returning despite repeated treatments
Wichtigste Erkenntnis
Mealybug treatment requires patience and persistence. Treat all crevices thoroughly and repeat applications to catch newly hatched nymphs.
Genesung in der App verfolgen
Protokolliere Fortschritte, stelle Erinnerungen ein und erhalte KI-gestutzte Diagnosen.
Quellen: RHS, Missouri Botanical Garden, NC State Extension. Inhalte zusammengestellt aus offentlich zuganglichen Gartenbaupublikationen zu Bildungszwecken. Quellorganisationen werden nur zur Transparenz aufgefuhrt und implizieren keine Unterstutzung.