- Author: Ben Faber
This is the most recent status report of theKuroshio Shot Hole Borer in the Tijuana River Valley of San Diego. For the full report go to: https://trnerr.org/kshb/
The Ecology and Management of the Kuroshio Shot Hole Borer
in the Tijuana River Valley
2019-20 (Year 5)
By
- Author: Ben Faber
Ambrosia beetles, which are a large group of several thousand species worldwide, belong to the bark beetles. All species are characterized by the ability to cultivate fungi. Invasive Shot Hole Borers that attack avocado and a range of native and landscape trees in California and the Laurel Wilt Disease that hammers avocado in Florida are ambrosia beetles. These beetles cultivate fungi in living trees and over time, the fungus is what kills the tree.
Beetles share the work of cultivating their fungal gardens: some...
- Author: Ben Faber
A “boring” problem that's generating
big interest in southern California
By Deena Husein, UCR Entomology, Ph.D. Candidate, Stouthamer Lab, UC Riverside
It has been a little over a decade since the first sighting of the polyphagous shot hole borer (PSHB) in Los Angeles County, yet a reliable control method has not been established. Part of the setback was caused by the misidentification of the species due to...
- Author: Ben Faber
Update on invasive shot hole borers: Online training now available
By Sabrina Drill, Natural Resources Advisor, UCCE Ventura
Invasive shot hole borers (ISHB) are a pest and disease complex potentially affecting over 200 tree species, but posing a strong risk to box elders, sycamores, and other riparian and urban trees, as well as being a nuisance pest for avocado. The beetles have also been shown to attack a wide variety of common and less common ornamental species. For a complete host list, visit https://ucanr.edu/sites/pshb/overview/SHB_Reproductive_Hosts/. The tiny beetles burrow into the trunks and branches of trees and create galleries where they cultivate a fungus that utilizes the trees own circulatory system,...
- Author: Ben Faber
Impacts of the invasive shot hole borer (Euwallacea kuroshio) are linked to sewage pollution in southern California: the Enriched Tree Hypothesis
By: John M. Bolandand Deborah L. Woodward
https://peerj.com/articles/6812.pdf
The Kuroshio Shot Hole Borer (KSHB, Euwallacea kuroshio) and the Polyphagous Shot Hole Borer (E. whitfordiodendrus; Coleoptera: Curculionidae: Scolytinae) have recently invaded southern California and are attacking live trees in commercial agriculture groves, urban parks and native riparian forests. Among native forests the worst impacts observed to date have been in the Tijuana River Valley in south San Diego...