Japanese Plum Tree with Borer Holes: Insecticide or Organic Option?

The Problem

A young Japanese plum has woodpecker‑like holes around the trunk; a previous tree died similarly. Owner suspects borers.

Borer Management

• Conventional: Trunk spray with permethrin or bifenthrin in spring when adults emerge.
• Systemic: Imidacloprid soil drench (if label allows for stone fruit).
• Organic (claimed): Atomic Grow sprayed into holes and drenched—user reports success on Erythrina.

Caveat

Ornamental plums may not be on pesticide labels. Always verify. Physical removal of larvae with a wire can supplement sprays.