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Phloeosinus punctatus LeConte, 1876 (western cedar bark beetle) Phloeosinus scopulorum Swaine, 1924; Phloeosinus sequoiae Hopkins, 1903; Phloeosinus serratus (LeConte, 1868) (juniper bark beetle) Phloeosinus setosus Bruck, 1933; Phloeosinus spinosus Blackman, 1942; Phloeosinus swainei Bruck, 1933; Phloeosinus taxodii Blackman, 1922; Phloeosinus ...
In response to the unprecedented spread of bark beetles in the Rocky Mountains and other parts of the western United States, the U.S. Forest Service formed the Western Bark Beetle Research Group (WBBRG) in 2007—a collaboration between scientists from three research stations that pools knowledge and resources to better understand the threat and eventually develop a strategy to combat it. [10]
Bark beetles enter trees by boring holes in the bark of the tree, sometimes using the lenticels, or the pores plants use for gas exchange, to pass through the bark of the tree. [3] As the larvae consume the inner tissues of the tree, they often consume enough of the phloem to girdle the tree, cutting off the spread of water and nutrients.
Tiny bark beetles, namely the Ips engraver and southern pine varieties, have been killing millions of trees across Louisiana and Mississippi after a severe drought last year left forests and woods ...
Dutch elm disease was spread by elm bark beetles, yet the tree mortality was caused by a pathogen. [4] Chestnut blight is a fungus spread through wind dispersal and rain splatter; the blight traveled up to 50 miles in a year by natural means. [5] Insect pests, once they reach the adult phase, have the ability to disperse by flight.
The pinyon ips is a small, brown, cylindrical bark beetle with spines on the distal portion of the abdomen, which is typical for this genus of bark beetles. Pinyon ips has five such spines. The adult’s length ranges between 1 ⁄ 8 inch (3.2 mm) and 1 ⁄ 4 inch (6.4 mm).
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This beetle is cylindrical in shape and 3.5 to 5.5 millimeters long by about 1.4 millimeters wide. It is dark gray or shiny black with reddish antennae and legs. The newly hatched beetle is entirely reddish, and its color darkens over time. The elytra, the front of the face, and most of the prothorax are punctate. The head is bent downward, so ...