During the 2016 growing season, the major pest challenges we encountered at the hop yard at the Borderview Research Farm in Alburgh, Vermont were two-spotted spider mite (Tetranychus urticae), potato leafhopper (Empoasca fabae), and hop downy mildew (Pseudoperonospora humuli).
Vermont, University of Vermont
Darby, Heather and Lewins, Scott, "Hop Pest Scouting Report" (2016). Northwest Crops & Soils Program. 96.