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

Hunting billbug

Sphenophorus venatus vestitus

Hunting billbug · adult weevil
Hunting billbug · adult weevilLeonardo Antonio Argese ↗ · CC BY 4.0
Photo contextThe source identifies Sphenophorus venatus; the photograph does not independently establish the vestitus subspecies.

This small weevil damages turf first inside stems, then around crowns and roots.

Record
Landscape reference
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In the landscape.

Plants & places

Especially zoysiagrass and bermudagrass.

Recognize the damage

Yellowing or thinning turf; damaged stems may break readily as larvae feed within them.

Before you act

Inspect stems, crowns, and soil along the advancing patch edge. Look for adults near turf borders, especially after dark.

A sensible first response

Keep turf vigorous without excessive nitrogen. Identify the damaging stage before planning control; stem-feeding larvae and wandering adults require different timing.

When to look

Adults become active in spring; larvae can occur through summer into fall.

In Western North Carolina

Most relevant where warm-season turf is grown in lower-elevation WNC landscapes; not a default explanation for every fescue problem.

Identification, lookalikes & further notes

Identification

Dark, snout-bearing adults have a smooth Y-shaped area behind the head; white larvae have brown heads and no legs.

Lookalikes & limits

White grubs have legs. Drought injury and other billbugs need separating with a specimen and host identification.

In the garden

Yellowing or thinning turf; damaged stems may break readily as larvae feed within them.

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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