Cedar Mortality: Annosus Root Rot, Not Beetles—Replant with Spruce/Pine

BB‑Sized Holes in Cedar Trunks: Likely Secondary

The holes are probably from bark beetles attacking trees already stressed by Annosus root rot (Heterobasidion annosum), a fungus that spreads via root grafts—explaining the row‑by‑row death.

Replanting Strategy

• Do not replant cedar, thuja, or juniper—susceptible to Annosus.
• Choose Norway spruce, pine, or fir—resistant.
• Remove all stumps/roots of dead cedars to eliminate inoculum.
• No pesticide needed in mulch—fungus is in wood, not soil surface.

Transplanting 7‑ft Yews

• Best: early fall (6+ weeks before freeze) or early spring.
• Root ball: 9–12″ width per inch trunk diameter; 6″ depth per inch.
• For 7‑ft yew, ball ~24–36″ wide—use a tree spade or hire a pro.
• Pre‑dig new hole; keep root ball moist; mulch 3″.