According to Kentucky's pest control standards, how often should certain building materials be drilled and treated?

The correct answer indicates that building materials should be drilled and treated every 8 inches according to Kentucky's pest control standards. This interval is crucial for effectively managing and preventing pest infestations, particularly for termites, which can cause significant damage to structures if not properly controlled.

Drilling and treating at this specified distance ensures that the treatment penetrates adequately into the areas where pests are likely to enter or nest, enhancing the barrier against infestations. This measure is part of a comprehensive approach to pest management that helps to maintain the structural integrity of buildings and protect them from destructive pests.

Adhering to this 8-inch rule ensures thorough coverage without leaving gaps that could be exploited by pests, thereby optimizing the efficacy of the treatment applied.