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Mealybugs

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Foliage Plants

About this condition

Soft-bodied insects covered in white waxy fluff that hide in leaf axils, stem nodes, and roots. They reproduce rapidly and can spread throughout a plant if not caught early.

Common symptoms

  • White cottony or powdery masses may appear in leaf axils, stem nodes, or at the base of the plant
  • Leaves and stems may become sticky from honeydew secretions
  • New growth may be stunted, distorted, or slow to emerge
  • The plant may weaken and leaves may yellow and drop if infestations go untreated

Common causes

  • Introduction via purchased plants or soil, including root-dwelling species
  • Plant stress from overwatering or poor ventilation increasing susceptibility
  • Spread from nearby infested plants through contact or movement
  • Hidden habit in leaf axils and roots making early detection difficult

Prevention (growing conditions & routine care)

Quarantine newly purchased plants and carefully inspect leaf axils and root zones before placing them with other plants. Avoid crowding and maintain good airflow. Regularly examine all parts of the plant for early detection.

Related guide

Browse the species guide for this animal

When to see a vet

Consider acting within a few days

What can a nursery or grower do?

Specialist nurseries and growers can advise on detecting root mealybugs, proper procedures for replacing soil and sanitizing pots, and environmental improvements to prevent recurrence.

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