A number of different bark beetles will attack the branches and twigs of pinyon pine trees, but it is the members of the genus Pityophthorus that are most commonly referred to as pinyon twig beetles (fig.1).

Pinyon pines are well-suited to many parts of Colorado. These pines make good visual screens, windbreaks, and wildlife habitat. Major diseases include black stain root disease, dwarf mistletoe, armillaria root disease, and pinyon decline.

Twig beetles often damage only part of a pinyon in urban settings. Damage can be severe enough to justify tree removal. Twig beetles (Pityophthorus spp. and Pityogenes spp.) are poorly known native insects that attack conifers. They have damaged many trees in the past few years.

Twig beetles are insects of conifer trees, principally pines. Beetles are tiny (1 – 3 mm) long and dark brown in color. Twig beetles may become active in March and persist through October.

Twig beetles may also create habitat for endemic mountain pine beetle populations by attacking the upper portions of small-diameter sup-pressed or diseased trees. This allows moun-tain pine beetle to attack the basal foot or two of the tree trunk.

Piñon ips is a native bark beetle that utilizes piñon pine inner bark and outer sapwood for food and to rear offspring, spending most of their lives underneath the bark of the tree.

• Pinyon pines are well-suited to many parts of Colorado. • These pines make good visual screens, windbreaks, and wildlife habitat. • Major diseases include black stain root disease, dwarf mistletoe, armillaria root disease, and pinyon decline. • Common insect pests are pinyon pitch mass borer, Ips beetles, pinyon tip moth,

Pinyon pines are hardy, drought-tolerant trees well-suited to many Colorado landscapes. Their dense growth habit provides good visual screening and wind protection, and they offer shelter and food for birds andother wildlife. Site selection and proper maintenance are important for tree health. Major Diseases Black Stain Root Disease (Leptographium

Common insect pests are pinyon pitch mass borer, Ips beetles, pinyon tip moth, pinyon pitch nodule moth, pinyon needle scale, and pinyon spindlegall midge. To ensure optimum health, avoid wounding trees, choose an appropriate site, water properly, and give trees adequate space.

Jul 12, 2021 · pines. This guide will help homeown- ers identify and manage common pests of pinyon pine. The guide discusses general practices to maintain healthy trees, lists specific pests, and outlines management strategies.