Elizabeth from Poplar Grove writes
What about the beam they are holding up? What can I use on old trees that seem to have the same beetles?
Timbor can be used on raw structural wood to prevent infestation of wood-boring beetles, however we do not recommend it for existing infestations. If you need to treat wood that is already infested or in the same area as infested wood, then we recommend using Boracare instead since it is absorbed fully into the wood. Neither of these products should be used on living plants because they will kill the plants. If you are removing structural wood that is infested with wood-boring beetles, then we recommend burning or chipping that wood and treating any new wood that is replacing it.
Answer last updated on: 09/25/2019
