Squash Vine Borer on Zucchini: Signs & Control

Squash Vine Borer is a common pest of zucchini. Here's how to spot the damage and stop it organically-first.

Signs to look for on Zucchini

Sudden vine wilt; sawdust-like frass at stem base; stem holes.

How to control it (organic-first)

Slit stem, remove larva, bury wound; inject BT; hill soil over damaged area.

More on Squash Vine Borer: Sudden vine collapse; sawdust-like frass at stem base. Prevention: Plant later; use row covers until flowering; rotate beds.

Squash Vine Borer on other plants

ZoneFig pest guidance reflects common extension-service recommendations. Always confirm the pest before treating and follow any product label. Verify locally.

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