Early-stage larvae of wood-infesting insects typically tunnel where in structural wood?

Early-stage larvae of wood-infesting insects, such as termites and some beetles, tend to tunnel close to the surface of structural wood. This behavior allows them to access the nutrients found in the wood while remaining protected from predators and environmental factors. By tunneling near the surface, these larvae can also take advantage of the relatively softer wood fibers, which are easier to excavate.

In contrast, as wood-infesting insects mature, they may tunnel deeper into the wood for additional protection and resources. Understanding the tunneling behavior of early-stage larvae is crucial for pest control professionals, as it assists in identifying infestations and determining appropriate treatment strategies.