Contributed by Robbie Flowers, PhD, Forest Entomologist, USDA Forest Service. What is causing recent defoliation of pines in forest areas to the west and south of Bend? This defoliation is caused by the Pandora moth, Coloradia pandora (Lepidoptera: Saturniidae), which is a native defoliator of pine forests in the western United States. Outbreaks have occurred…
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Pandora Moth in Central Oregon
