Saving a Redbud Tree from Wood Borer Infestation

Emergency Action Plan

1. Immediate Pruning

• Remove dead/dying trunks completely (any time of year)
• Cut back to healthy wood or main trunk
• Destroy infested wood (burn or chip) to kill larvae

2. Systemic Insecticide Treatment

Apply Bayer Advanced Tree & Shrub Insect Control (imidacloprid) as soil drench NOW (growing season). Rate: per label for trunk diameter. Roots translocate to canopy, killing borers as they feed. Takes 2-4 weeks to reach foliage.

3. Trunk Spray for Faster Action

Spray trunk/branches with Merit (same active ingredient) for immediate contact/translaminar action while systemic activates.

4. Fertilization for Recovery

Apply 10-10-10 at 1 lb per inch trunk diameter around remaining trunks. Water in well. Repeat in spring.

Why This Works

Borers attack stressed trees. Fertilizer + water improves vigor. Systemic protects new growth. Removing infested wood reduces population. Don't wait for fall - treat during active growth.

Product Link

Bayer Advanced 12-Month Tree & Shrub Insect Control