What visible signs indicate damage from the White Pine Weevil?

The visible signs of damage from the White Pine Weevil prominently include wilting or drooping terminals. This occurs as the weevil feeds on the new growth of the tree by boring into the leader shoots, which can lead to the death of the terminal leader. As a result of this feeding damage, the new growth becomes stunted, and the branches often droop or wilt.

While other options describe signs that could be associated with different plant issues or pest damage, they are not characteristic of White Pine Weevil specifically. For instance, brown spots on leaves are usually indicative of foliar diseases or nutrient deficiencies, blackened needles can signify needle cast diseases or environmental stress, and orange spore horns are typically related to certain fungal infections, not weevil damage. Thus, the wilting and drooping of the terminals is a direct and clear symptom of White Pine Weevil infestation.