We recommend using Amdro’s 2-step method for protecting your home from wood-destroying insects. To kill and prevent surface infestations, use Amdro Quick Kill Carpenter Bee, Ant & Termite Killer Ready-to-Use Spray or Concentrate. To kill and treat localized infestations in holes or crevices where these insects live, use Amdro Quick Kill Carpenter Bee, Ant & Termite Killer Foam. The foam expands to fill up the hole and stops insects in their tracks as soon as it comes into contact with it.