What are aphid-like insects that specifically attack only conifers called?

Aphid-like insects that specifically target conifers are known as adelgids. These small insects belong to a family of hemipterans and are differentiated from other aphids due to their unique life cycles and host preferences. Adelgids are particularly notorious for infesting various species of conifer trees, such as spruce and pine, causing damage to the plants by feeding on their sap and weakening them.

While the term "aphids" refers broadly to a group of insects within the superfamily Aphidoidea, it includes many species that do not specialize in conifers. Phytophagous refers to plants or plant-eating organisms in general, lacking the specificity for the types of insects mentioned. Scale insects, on the other hand, belong to a different group of insects entirely and are not limited to conifers, making them less relevant to this specific question.

Understanding the specific behaviors and characteristics of adelgids helps in managing pest control efforts effectively, particularly for coniferous trees.