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Chokecherry Flower Galls
Welcome back to Ask a Naturalist, your own personal Google for information on all things natural on PEI. I’ve been receiving photos of deformed Chokecherry (Prunus virginiana) flowers from around the Maritimes, including this one from Tara Matheson here on PEI. The cause is a fungus, Taphrina confusa. Let’s take a look! Normal Chokecherry flowers have five white petals and grow in finger-like groups, called ‘racemes’ (inset photo). Once pollinated, each flower will form an
katemacquarrie22
Jun 242 min read


Black Knot Fungus
This is a great time of year to spot a PEI fungust that's best known as a disease of Cherry trees: Black Knot ( Apiosporina morbosa ). Black Knot fungus forms distinctive, black galls on stems and branches of our native Pin Cherry and Chokecherry, as well as ornamental Cherries and Plums. While it’s unattractive, reduces fruit production, and may kill the infected branch, Black Knot doesn’t usually kill the entire tree unless the infection is very severe. Within those black
katemacquarrie22
Apr 122 min read


Maze Polypores
Welcome back to Mushroom Monday, your weekly look at some of PEI’s fascinating fungi. The dry weather has made it a poor year for most...
katemacquarrie22
Sep 14, 20252 min read


White Spring Moth
Welcome back to Ask a Naturalist, your own personal Google for information on all things natural on PEI! I was thrilled to get this photo...
katemacquarrie22
Jun 25, 20252 min read


Serviceberry
What’s not to like about early August on PEI? There’s sandy beaches and warm water, new potatoes and garden vegetables, and wild fruit...
katemacquarrie22
Jul 31, 20242 min read
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