On Austrian pine, infested shoots remain alive and green much longer. In early July, they can only be recognized when uninfested shoots expand to full size while infested shoots remain stunted. Close examination may reveal the entrance hole, often rimmed with resin, near the base of the affected shoot. Slit the twig open and you may find the adult beetle within in a frass-free channel. Entry hole to beetle channel in pine shoot.
Beetles breed in recently dead or dying pines.
Culled pines should be chipped, burned, or buried to minimize their chances for serving as breeding sites and for contributing to buildup of beetle populations. Stumps should be treated as they would be for Pales weevils to further eliminate breeding sites. Wherever possible abandoned, overmature, or otherwise unmanaged pine plantings should be brought under management or destroyed.