PEAR TREE LEAF - Ask Extension
100 year old Bartlett pear tree leaves have orange-brown spots. Is this evidence for a disease, insect damage or other blight?
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PEAR TREE LEAF #879959
Asked August 02, 2024, 5:16 PM EDT
100 year old Bartlett pear tree leaves have orange-brown spots. Is this evidence for a disease, insect damage or other blight?
Multnomah County Oregon
Expert Response
Thank you for your question, Kelcey. This a symptom of a fungus called pear trellis rust, described here: https://pnwhandbooks.org/plantdisease/host-disease/pear-pyrus-spp-trellis-rust-european-pear-rust
Since none of the chemicals listed are available to homeowners, the only "cure" for this, as the article indicates, is to remove all juniper within a 1000-foot radius. If this is not possible, you might want to contact a company licensed in applying a fungicide to help control the problem. Good luck!
Since none of the chemicals listed are available to homeowners, the only "cure" for this, as the article indicates, is to remove all juniper within a 1000-foot radius. If this is not possible, you might want to contact a company licensed in applying a fungicide to help control the problem. Good luck!
