Giant conifer aphids - ¼-inch long - are abundant this spring in Colorado. Large outbreaks are being noticed in areas of the Front Range mainly because they can be mistaken for ticks. Giant conifer aphids can cause foliage on conifers to yellow, some needle drop or dieback of shoots. Photo by Whitney Cranshaw, Colorado State University
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Friday, June 9, 2017
Punch List: The second week of June we’ve got giant spruce aphids to worry about
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