Used as a preventative treatment in existing wood structures and for treating wood infested with termites, carpenter ants and wood-boring beetle larvae. It is applicable for interior and exterior applications, wood and cellulose materials that will be protected from excessive rain not in direct contact with soil. Tim-bor is toxic to wood-destroying insects, however, surface etching of treated wood may occur. Tim-bor Professional must be part of an Integrated Pest Management strategy. Please let me know if you have any questions.The item "TIMBOR Professional Borate Powder Concentrate 25 lb. Pail" is in sale since Saturday, November 24, 2018. This item is in the category "Home & Garden\Yard, Garden & Outdoor Living\Gardening Supplies\Weed & Pest Control\Weed Control\Herbicides & Fungicides". The seller is "logcabins_4" and is located in Greeneville, Tennessee. This item can be shipped to United States.