Hemlock Woolly Adelgid CFIA Update

On August 10, 2022, the Canadian Food Inspection Agency confirmed the presence of hemlock woolly adelgid (HWA) near Grafton, Ontario. A small population of HWA was first detected in the province in Etobicoke in 2012 but was eradicated shortly after Continue Reading

Starry Stonewort in the Great Lakes Basin

In the 1970’s, a European freighter made its way across the Atlantic Ocean into the St. Lawrence River. When the ship released its ballast water, a Eurasian native macroalgae – starry stonewort (SSW), was released along with it.  Quickly reproducing, Continue Reading

Grass Carp Video Wins a SO GOOD Award

Grass Carp is one of the four species of invasive Asian carps that are threatening to invade the Great Lakes. Growing to a maximum size of more than 80 lbs., these fish would quickly outgrow the gape (mouth) size of Continue Reading

Invacost: The Cost of Invasive Species

Invasive species are spread around the world as people, animals, cargo, and ships travel from place to place. The changing climate is increasing the spread of invasives. With temperature changes in both air and water, species are shifting locations to Continue Reading