EAB Infestation Map

Below is the current map of emerald ash borer (EAB) infestation across North America. The most recent additions to the infestation map are British Columbia (May 2024) and North Dakota (August 2024). An up-to-date map is available on our website.

It's Peak Spotted Lanternfly Season

Late summer and early fall are peak season for spotted lanternfly (SLF). Look for clusters of SLF adults on trees or woody vines. If SLF is new to your area and you find one of these insects, take a photo, collect a specimen if possible and report it to your local extension office or state regulatory office.

October is Firewood Month!

Moving firewood spreads invasive pests like emerald ash borer that damage forests. Throughout October, Don’t Move Firewood is hosting seminars on firewood best practices and updates on invasive wood-boring insects. See below for seminar details or click here for more information.

Thursday, Oct. 16 2-3 p.m. EST

Beyond Wooden Thinking: Getting to the Heartwood of the Matter

This talk will focus on human behavior and firewood characteristics. Presentation by John Riggins, Associate Professor and Extension Specialist at Oregon State University.

Tuesday, Oct. 28 4-5 p.m. EST

Wildfire Fuel: How Destructive Forest Pests Travel in Firewood

This talk will focus on goldspotted oak borer in southern California. Presentation by Joelene Tamm, Natural Resources Director for the La Jolla Band of Luiseño Indians.

Wednesday Oct. 29 1-2 p.m. EST

Updates on Emerald Ash Borer in the Pacific Northwest

This talk will focus on recent infestation and quarantine updates across Oregon and Washington. Presentation by Wyatt Williams and others with the Oregon Dept. of Forestry as well as staff of the Washington Invasive Species Council.

Recent EAB News

EAB has been confirmed in Portland, OR

EAB has been detected for the first time in the city of Portland. According to the Oregon Department of Forestry, the invasive insect was detected in six new areas this summer.

Sioux Falls launches CommuniTree program in response to EAB

Thanks to a $3 million U.S. Department of Agriculture (USDA) grant, Sioux Falls will offer eligible households free replacement trees to offset ash tree losses from EAB. The program includes professional planting in the public right of way, first-year maintenance at no cost and discounts on additional approved trees.

State scientists are planting thousands of Oregon Ash trees in invasive beetle territory, hoping to find rare natural resistance

At the Dorena Genetic Resource Center

in Oregon, USDA scientists are growing thousands of Oregon ash from across the West Coast in hopes of identifying rare trees with genetic resistance to EAB. Only about one in 1,000 seedlings, or roughly five of the 5,300 at the center, are expected to survive.

Other News

Recent detection of scale species on fir trees in Michigan Christmas tree farms

Elongated hemlock scale and Cryptomeria scale have been found on fir Christmas trees in Michigan.

New Texas law will give farmers a heads-up on pests and diseases

A new Texas law, effective Sept. 1, establishes a statewide alert system for pests and diseases affecting plants and wildlife. The system will notify residents about emerging threats to help slow their spread.

Avoid Ash Trees When Placing Deer Stands

As deer hunting season approaches, the Wisconsin DNR reminded hunters in Wisconsin and across North America to avoid placing deer stands in ash trees, as many are dead or dying and may pose a safety risk.

State foresters record first tree deaths in Maine from beech leaf disease

Maine state foresters have recorded the first beech tree deaths from a disease caused by an invasive microscopic roundworm, or nematode. The disease arrived in the state four years ago and is now present in all 16 counties.