Yes, we do have trees in Minnesota that are orange. However, they are hawthorn trees that have turned orange due to a non-harmful disease called quince rust. Some refer to the disease as cedar apple rust but that’s a little different.
Quince rust infects the hawthorn fruit when it sporulates a fine orange dust that falls onto the leaves and anything else under the tree. On one site, the dust fell onto a driveway and when it rained, orange soup was rolling down the driveway. On another property the dust covered their brand-new porch. The only control we are aware of is spraying with a fungicide prophylactically next spring.
Our team of ISA Certified Arborists and Board Certified Master Arborists are standing by to assist with any issues you have with your trees. Contact us today to schedule an assessment of your trees.
Photo credit: James Bade, Golf Course Superintendent at Somerset
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