In a strawberry patch next to an apple orchard, technicians David Roys (left) and Cathy Peters and entomologist Tom Unruh inspect plants for strawberry leafrollers. A rose garden to help the leafroller parasite Colpoclypeus florus survive the winter should be close to the orchard, but not so close that pesticides will drift on it. It should be in a place that is easy to irrigate. Dr. Tom Unruh, entomologist with the U.S. Department of Agriculture in Yakima, Washington, recommends planting a strip or two of roses about 30 to 60 feet long. Wild roses, such as Rosa woodsii or Rosa […]
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