Asian Ambrosia Beetle in Cherry Tree: Why Coppicing Won't Work

Those "toothpicks" (frass tubes) on your 'Kwanzan' cherry confirm Asian ambrosia beetle. Unlike crapemyrtle, which resprouts vigorously from the ground, cherry trees don't regenerate well from stumps. The beetle introduces a fatal fungus.

The Hard Truth

The infested portion will die. To protect nearby susceptible trees (cherry, pecan, peach, etc.), remove the entire tree promptly. Chip or burn the wood. Monitor neighbors with ethanol-baited traps.

Prevention Focus

Keep trees vigorous—water during drought, mulch properly, avoid wounding. Stressed trees attract beetles. For trap instructions, see More Beetle Information/How to Make a Monitoring Trap.