Each time I present on invasive pests, it begins with a slide of Chicken Little, a character who fomented mass hysteria by convincing other animals the sky was falling. It’s usually good for a chuckle. Inevitably I then proceed to unload a barrage of bar graphs, pie charts, alarming statistics, and photos of mayhem wrought by the featured pest. A final slide shows the position of the sky, with arrows in the direction of gravitational pull at 9.8 m/s/s, proof that the sky is indeed falling. For some reason, fewer people laugh at the end. Go figure.

Threats to forest health posed by invasive species are no joke. Yet I think we educators often come across like Chicken Little, squawking about yet another threat to trees. It would be hard to blame the average person for asking themselves, gosh – how many times can the sky fall, anyway? » Continue Reading.