PlantPal

Cottony clumps: check for mealybugs

Look for white, waxy insects where leaves meet the stem.

Mealybugs clustered on a plant stem.
Mealybugs clustered on a plant stem. Photo: Валерія Матвєєва · CC0 · Resized and converted for display.

What to check first

Inspect leaf joints, the stem and leaf undersides. Mealybugs often sit in distinct cottony clumps; you may see an oval insect in the wax or sticky residue on leaves below.

What to do now

Move the plant away from others and check its neighbors. Wipe away small clusters with a damp cotton swab. Use a fresh swab for another plant.

What to watch next

Recheck the same joints and new growth over the next few weeks. If clusters keep coming back or appear on several plants, identify the pest before choosing a treatment.

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