Pine Bark Beetle Identification: Species, Attack Patterns, and Prevention

Pine trees always subject to insect attack; examine periodically for developing problems. Several small brown/black beetle species common pests. Referred to as pine bark beetles—found chewing through and developing in bark. May attack different/overlapping trunk sections. Important to distinguish types—control measures target different trunk areas.

Pine bark beetles usually attack lightning-struck or construction-injured trees. Local outbreaks follow severe wind/ice storms. Signs: numerous pitch tubes on trunk at various heights, reddish-brown boring dust in bark crevices.

Black turpentine beetles attack lower 2 feet of trunk, may spread up to 15 feet.

Southern Pine Beetles attack upper part of tree.

IPS Beetles attack whole tree, top to bottom.

Ambrosia beetle dust accumulates around base. Attacks soon after bark beetle. Needles lose green coloration weeks after attack.

Trees with yellow/red/brown needles suspected of bark beetles. Prune live pine branches November–February to prevent sap attracting beetles. Don't climb with tree spikes—wounds attract beetles. Green pines cut for firewood shouldn't be stacked near healthy pines—may attract bark beetles. Trees attacked by certain beetles may not be saved. Identify beetle type for proper treatment.

Identifying Pine Bark Beetles