Select Page
Sudden Oak Death

Sudden Oak Death

Sudden Oak Death Phytophthora ramorum  Home 9 Category: Invaders ( Page 7 ) Background Sudden oak death is a disease affecting species of trees caused by a fungal-like organism. Established in localized areas of North America, the native range of the...
Thousand Cankers Disease

Thousand Cankers Disease

Thousand Cankers Disease Geosmithia morbida  Home 9 Category: Invaders ( Page 7 ) Background Thousand cankers disease is a new threat that has been linked to the death of eastern black walnut trees in the United States over the last decade. The native...
Hemlock Woolly Adelgid

Hemlock Woolly Adelgid

Hemlock Woolly Adelgid Adelges tsugae  Home 9 Category: Invaders ( Page 7 ) Background The hemlock woolly adelgid (HWA) is an aphid-like insect that attacks and kills hemlock trees by feeding on nutrient and water storage cells at the base of needles. It...
Tubenose Goby

Tubenose Goby

Tubenose Goby Proterorhinus semilunaris  Home 9 Invaders 9 Category: Fish Background The Tubenose Goby is a small, bottom-dwelling invasive fish. Native to rivers and estuaries of the Black and Caspian sea basins, it was first discovered in North...
Zander

Zander

Zander Sander lucioperca  Home 9 Invaders 9 Category: Fish What is Ontario Doing? To prevent this unwanted invader from coming into the province, Ontario has regulated Zander as prohibited under the Invasive Species Act, 2015.  For more information...