What is an important consideration when determining drill hole spacing?

When determining drill hole spacing, the type of construction is a critical consideration. Different construction materials and techniques can affect how pests penetrate and infest structures. For example, a concrete foundation may require different spacing compared to a wooden frame because of the varying degrees of accessibility for pests. Knowing the construction type helps in strategically placing drill holes where they will be most effective in treating or preventing infestations.

In context, while other factors like angle of drilling, type of pest present, and depth of the soil are relevant in pest management, they do not directly influence the spacing of drill holes to the same extent that the type of construction does. Adjusting hole spacing according to construction ensures that treatments are applied efficiently and effectively, maximizing the chances of controlling wood-destroying pests.