Florli

Plant problems

Scale insects on plants

A bump that lifts to reveal an insect differs from normal bark, scars or leaf structures.

Hidden feeding

Scale settles along veins, stems and sheltered joints.

Honeydew

Some species produce sticky residue that supports sooty mould.

Slow detection

Immobile adults are easily mistaken for plant tissue.

Problem

What to do next

  1. 1

    Isolate the plant and confirm that the bumps are insects.

  2. 2

    Remove small numbers carefully where the plant tolerates it.

  3. 3

    Repeat inspections and follow a suitable product label if treatment is required.

Observation

When to act sooner

  • The plant is heavily encrusted.
  • New growth weakens or dies back.
  • Sticky residue appears on surrounding surfaces.
Important

Scale insects on plants can have several causes. Confirm the plant, conditions and recent care before choosing a treatment.

Florli

Related guides and features

Library Plant problems Yellow leaves, brown spots and root problems: learn what to inspect first and how to avoid making the situation worse. Read the guide → Feature Plant problem checker Florli helps you organize symptoms, consider possible causes and choose a cautious next step without presenting an uncertain result as a definite diagnosis. Read the guide → Feature Plant and garden journal Record watering, feeding, mowing, planting, pruning and your own notes in a history attached to the right plant or place. Read the guide →
Sources and further reading: University of Maryland Extension: houseplant pests

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Prepared by Florli. This is general guidance. Sources are listed with each guide, and every decision should reflect the species, location, weather and the plant’s current condition.