Hemlock Woolly Adelgid and Online Workshops

Hemlock woolly adelgid (HWA) discovered in Ontario

The hemlock woolly adelgid has been found in Fort Erie. If you are in this area, do not move hemlock or any type of firewood to prevent further spread.

What is HWA?

HHWA is similar to aphids in that they suck fluid from their hosts. They feed on cells storing nutrients and water at the base of hemlock needles, causing the needles to die. There are two forms of the insect, each of which lay up to 300 eggs each year. This can result in exponential population growth due to the absence of natural enemies.

White cottony balls of hemlock woolly adelgid at the base of needles on a hemlock branch.
HWA nymphs and adults clustered at the base of hemlock needles. Photo: Connecticut Agricultural Experiment Station Archive, Connecticut Agricultural Experiment Station / © Bugwood.org, CC BY 3.0 us, https://commons.wikimedia.org/w/index.php?curid=8339006

Why is it a problem?

In the States, HWA has caused widespread death and decline of hemlock trees, which in turn negatively impacts the types of animals, plants, and other organisms living in the ecosystem. Eastern hemlock in the southern Appalachian Mountains may be virtually eliminated in the coming years.

What can I do?

Fall through winter are when these insects are most active. Start checking your hemlock trees, flipping the branches over to get a good look at the undersides as well. This is a good habit to get into, especially if you live in the South close to the US border.

If you’ve seen hemlock woolly adelgid or another invasive species in the wild, please contact the toll-free Invading Species Hotline at 1-800-563-7711, visit EDDMapS Ontario, or search for the ‘Invasive Species in Ontario’ project on iNaturalist.org to report a sighting.

For more information and photos, click here.

For the CFIA news release on the discovery, click here.

Free University of Vermont Maple Business Webinars

UVM offers two online short courses for current and prospective maple producers this fall. Each course includes four classes (1.5 hours each), once per week, in addition to teaching assignments linked to the business planning tools and calculators available on this web page. Registration in now open!

  • Maple Business Planning  This four-session course guides participants through key aspects of preparing a business plan. Each session covers concepts in strategic planning, analyzing risks, marketing and planning improvements. Students prepare sections of their own plan over the four-week timeframe of the course. Instructor: Mark Cannella (Extension Associate Professor). Register Here for Maple Business Planning. Course Dates: 7:00 – 8:30 EST pm EST on Tuesdays: 10/26, 11/2, 11/9 and 11/16.
  • Maple Financial Planning  This four-session course guides participants through the basics of financial statements and financial planning concepts. Topics included cash flow, balance sheets, sales forecasting and calculating cost-of-production. The goal of this course is to identify important numbers and where to find them in order to make powerful decisions for your business. Instructor: Mark Cannella (Extension Associate Professor). Register Here for Maple Financial Planning. Course Dates: 7:00 – 8:30 EST pm EST on Thursdays: 10/28, 11/4, 11/11 and 11/18.

Also check out their extensive catalog of upcoming and past maple webinars here.

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