A fungal disease, along with climate change, threatens Colorado’s prized peaches

By Jane Stewart, Associate Professor of Plant Pathology, Colorado State University
David Sterle, Research Scientist in Pomology, Colorado State University

In western Colorado, home to the treasured Palisade peach, cytospora canker is one of the most economically consequential fungal diseases faced by growers.

A recent survey conducted by Colorado State University in Orchard Mesa found that 100% of the orchards have trees infected with cytospora canker. In some orchards, you can smell the sweetness of gummosis, the sweet oozing of sap from a tree that…

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