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Pear trellises fungus #921746

Asked November 10, 2025, 3:42 PM EST

Have diagnosed my Bartlett pear tree with this f7ngus, based on picture# on the internet. What kind of fungicide should I apply and when?

Washington County Oregon

Expert Response

I agree it looks like pear trellis rust. This spring will be your opportunity to go after this disease. Please see list of control tactics here: https://pnwhandbooks.org/plantdisease/host-disease/pear-pyrus-spp-trellis-rust-european-pear-rust

Jay W. Pscheidt, PhD, Professor Replied November 10, 2025, 4:41 PM EST

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