Cedar-Quince rust (Gymnosporangium clavipes)? on Red Chokeberry (Aronia arbutifolia) with rust, Cranberry Bog Nature Preserve, Suffolk County, NY, October 2024
Host is cultivated Pyrus.
Collected from parasitized Aleuroplatus bodies using microscopy. ITS sequenced to determine fungal ID. For Capnodiales sooty mold survey.
The dark spots are a fungus attacking the Elongate Hemlock Scale insects