Test PB Collection: FTE

While we can't replace time spent in the field, you can learn the basics about invasive shothole borers with our ISHB eXtension Training! First time users will be asked to create a free account.

Reproductive hosts are plant species that are capable of 1) supporting beetle reproduction and 2) growing the fungi that cause Fusarium dieback. Source: Eskalen, A. et al. 2013-2018 https://apsjournals.apsnet.org/doi/abs/10.

ISHB Overview Euwallacea interjectus: A new shothole borer species introduction in California (12/2024) UC IPM Pest Notes, Publication 74179, Invasive Shothole Borers (8/2023) Invasive Tree Pests: Beware of This Costly Triple Threat (12/2022) ISHB California Resident Advisory (5/2021) Invasive Shoth...

Visit our ISHB YouTube Channel to view informative videos about ISHB gathered from selected partners and experts.

We believe the following materials provide additional background and insights about ISHB that you may find useful. However, because these materials were created by third party organizations, we are not able to edit or update them to reflect recent scientific advances related to ISHB.

American Public Gardens Association California Avocado Commission California Firewood Task Force California Releaf California Urban Forests Council CAL FIRE Urban and Community Forestry Center for Invasive Species Prevention Find a Certified Arborist Invasive Species Council of California OC Parks -...

Concern as tree-killing beetle spotted in southern suburbs by Nettalie Viljoen, News 24 Peoples Post, January 26, 2023 Beetle infesting trees in Perth could pose deadly threat to Moreton Bay figs by Lisa Cox, The Guardian, September 10, 2022 Call on Joburg's residents to plant trees to save the city...

Source: Gevorik Arakelian, L.A. County Department of Agriculture Invasive shothole borers (ISHB) are a group of cryptic species of ambrosia beetles within the genus Euwallacea.

This online assessment tool is intended to help evaluate the presence of ISHB on your property. Consider the level of infestation, potential safety hazards, economic and ecological tree value, available resources, and factors unique to each situation when using this tool.

Need an ISHB related photo for your publication? You can probably find it here. A variety of individuals and organizations have contributed photographs to this library.