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THE GARDEN SAGEA library of living things
Wildlife & landscape pests · Western North Carolina field companion

Lesser canna leafroller

Geshna cannalis

Canna leaf opened to reveal leafroller injury and debris
Canna leaf opened to reveal leafroller injury and debrisLeila Dasher ↗ · CC BY 4.0
Photo contextThe source observation is identified as Geshna cannalis. The picture primarily illustrates damage inside a rolled leaf.

A leaf that refuses to unfurl may shelter a small caterpillar inside.

Record
Landscape reference
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In the landscape.

Plants & places

Cannas.

Recognize the damage

Silk holds leaves rolled or folded; feeding scrapes the surface and leaves streaks, holes, and debris.

Before you act

Gently open a suspicious roll and look for a larva, silk, and fresh feeding.

A sensible first response

Remove infested rolls where practical. Clear affected dead canna tops at season's end instead of leaving them as mulch that shelters the pest.

When to look

From spring growth through summer; larvae can overwinter in old canna foliage and stems.

In Western North Carolina

Useful in WNC summer borders and containers; adult imagery is not a picture of the damaging larval stage.

Identification, lookalikes & further notes

Identification

Small larvae live within the rolled foliage. Adult moths are modest brownish moths with patterned wings.

Lookalikes & limits

The larger canna leafroller is a skipper larva. Cold damage and normal unfurling leaves do not contain silk and frass.

In the garden

Silk holds leaves rolled or folded; feeding scrapes the surface and leaves streaks, holes, and debris.

What would help next

Record the host plant, date, fresh damage, and a clear photograph of the animal or insect. A damage match narrows the search; it does not establish an identification.

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