Leafminers

Larvae feed between leaf surfaces and leave characteristic trails or blotches.

Isolate nowPossible cause—not a diagnosis. Compare the visible signs, plant identity, and growing conditions before treating.

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Signs you may notice

winding trails
blotches inside leaves
mines

Safe first checks

Hold affected leaves to the light and look for a trail contained within the tissue.
Move the plant away from the collection.
Inspect both sides of leaves, stems, crevices, and the pot.
Photograph the signs before cleaning so you can compare changes.

Can look similar to

Overlapping symptoms are common. Compare these alternatives before choosing a treatment.

mechanical scars
thrips
fungal spots

What to avoid

Do not apply several pesticides at once or treat before confirming that a living pest is present.

Record and follow up

Reinspect the isolated plant and nearby plants every few days. Record living pests, new damage, and treatment response before deciding the problem is resolved.

Seek qualified local help when damage is severe, rapidly spreading, or may involve a regulated pest or disease.