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California root borers are considered an orchard pest. It has become a prominent pest of fruit trees in the Intermountain West region. The tunneling habits of the larvae can cause the death of infested trees. This can be caused directly, through girdling of the root cambium, or indirectly as the weakened host becomes susceptible to disease. [1]
They are found in western North America, from Alaska through California, and in New Mexico. [1] The banded alder borer may be found in the spring and summer on the bark of alder trees. The exact reason is unknown, but R. funebris is drawn to recently painted buildings and may be found, in multitudes, resting on the paint.
The beetle penetrates through thin or cracked bark in the canopy branches. [1] It first invades and kill branches in the canopy of a tree, then spreads to the trunk, culminating in the death of the tree. [2] The females produce two or more generations annually. Large populations can develop in the lower trunk over a number of growing seasons.
The goldspotted oak borer is just 14 miles from the Santa Monica Mountains' 600,000 oak trees and threatens to devastate forests throughout California, harming wildlife and increasing fire risks.
If you think you found a beetle or tree damage, report it by calling the ALB hotline at 1-866-702-9938 or submitting an online report at www.AsianLonghornedBeetle.com. Try to photograph the ALB or ...
Placosternus difficilis, commonly known as the mesquite borer, is a wood-boring longhorn beetle [1] [2] which resembles a black and yellow wasp. [3] Larvae of mesquite borers are deposited in, among others, mesquite trees, although it has been recorded from a range of hosts and is considered polyphagous. [4]
Megacyllene robiniae, commonly known as the locust borer, is a species of longhorn beetle endemic to eastern North America. It is a serious pest of Robinia pseudoacacia, the black locust tree, with which it is sympatric.
Euwallacea fornicatus, also known as tea shot-hole borer, or polyphagous shot-hole borer (PSHB) is a species complex consisting of multiple cryptic species of ambrosia beetles known as an invasive species in California, Israel, South Africa, and Australia. The species has also been unintentionally introduced into exotic greenhouses in several ...