Penn State Extension Hosts Feb. 17 Webinar On The Oystershell Scale Invasive Insect - Frontiers In Forest Health

The Penn State Extension will host a February 17 webinar on the Oystershell scale invasive insect and its growing threat to forest health from 8:00 to 9:00 a.m.

Oystershell scale (Lepidosaphes ulmi) is an invasive insect capable of infesting more than 130 plant species, posing a serious challenge in arboriculture, urban landscapes, and—most critically—the forests of the Western United States, where it threatens the health and survival of aspen (Populus tremuloides). 

This webinar will share current research on oystershell scale, explore the insect’s growing impact on western ecosystems, and outline management strategies designed to help protect vulnerable forests from this high-impact pest.

Who is this for?

-- Arborists/urban foresters

-- Conservationists

-- Ecologists 

-- Foresters

-- Forest landowners

-- People interested in forests and trees

What will you learn?

-- What is oystershell scale

-- The threat it poses to forests and urban trees

-- Management strategies for oystershell scale

Continuing education credits are available.

Click Here to register and for more information.

Visit the Penn State Extension website to learn more about many other educational opportunities.

[Posted: December 11, 2025]  PA Environment Digest