Red Maple Borer Treatment: Insecticide Options and Application

A local tree farm confirmed borer damage in our red maple (likely a 'Sunset' cultivar). They recommend peeling damaged bark, probing holes with wire to kill larvae, then spraying. Where can we buy both borer spray and systemic treatment online?

Recommended Insecticides

Amazon carries borer insecticides, but a local nursery is preferable for expert advice and immediate availability. Request products containing imidacloprid (sold as Merit) or bifenthrin (sold as Onyx). Bayer manufactures a Merit formulation specifically for tree borers.

Amazon product link for reference

Application Tips

• Remove loose bark around entry holes
• Spray insecticide directly into borer tunnels
• Apply systemic treatment as a soil drench for uptake into vascular tissue
• Monitor for fresh frass (boring dust) indicating active infestation