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Extension > Garden > Diagnose a problem > What insect is this? > Garden Pests > Caterpillars, maggots, grubs, and similar immature insects - 1/4 inch - 1/2 inch long > Rose stem girdler

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Rose stem girdler

Agrilus aurichalceus

Rose stem girdler

Utah State University

Size: Up to 3/8 inch long

Where/When: The larva feeds just beneath the bark of rose stems during summer and again in early spring. Larvae are rarely, if ever, seen.

Significance: Dieback of damaged stem occurs due to decreased nutrient and water flow.

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