Elms of Eastern Canada and the Northeastern United States

Elms of Eastern Canada and the Northeastern United States

Our region has three native Elm species.  One, American Elm (Ulmus americana), is very familiar to most people and has become virtually synonymous with the word "Elm".  We also have two other native species which deserve to be known better: Slippery Elm (Ulmus rubra) and Rock Elm (Ulmus thomasii).  This presentation will focus on giving a visual tour and an overview of natural history and uses of our three native Elm species.   We will also cover commonly encountered exotic Elms, and issues affecting the elms such as Dutch Elm Disease and the emerging new threat Elm Zigzag Sawfly.

Speaker: Owen Clarkin, Vice-President of the Ottawa Field-Naturalists Club.

Left to right: rock elm, American elm, and slippery elm photographed in eastern Ontario.

A link to join the webinar will be distributed to all registrants closer to the date.