Large pine shoot beetle

A species of Tomicus, Also known as Pine shoot beetle

It is black or dark brown, 3.5–4.8 mm long, with a cylindrical body, rounded at the head and abdomen ends. It breeds in recently dead and dying trees, most often windblown trees lying on the ground but also in e.g. fire-killed standing trees. The adults tunnel a breeding gallery in spring, up to 25 cm long, parallel to the wood grain, where they lay their eggs. On hatching, the larvae chew through the phloem radially from the gallery for several months, emerging as new adults in late summer. The adults then feed through the autumn and winter on the pith in strong apical shoots of healthy young trees, killing the bored-out shoots. This does not kill the tree, but causes damage to the growth form, reducing the economic value of the timber by reducing growth rates and stem straightness. There is one generation per year, with most adults dying after breeding many times, though a few survive to breed again a year later. Unlike most bark beetles, Tomicus piniperda does not use pheromones for pre-breeding association and pairing, but instead homes in on the resin scent emitted by damaged specimens of the host species.