David Owens, Extension Entomologist, owensd@udel.edu This week I had the chance to visit a hopyard in Newark. Both potato leafhoppers and mites were active. Thresholds in hops from other states are 2 leafhoppers per leaf and 2-5 mites per leaf.… Continue Reading
Kate Everts, Vegetable Pathologist, University of Delaware and University of Maryland; keverts@umd.edu Scab of Cucurbits Cool wet weather is associated with several vegetable diseases. One of these is scab on cucurbits, caused by the fungus Cladosporium cucumerinum, which is favored… Continue Reading
Nancy Gregory, Plant Diagnostician; ngregory@udel.edu Samples Wanted: Powdery Mildew on Hops has not been confirmed in Delaware. Bill Weldon, a graduate student at Cornell University, is tracking the dispersal of this fungal disease across the US. There are “male” and… Continue Reading
Jerry Brust, IPM Vegetable Specialist, University of Maryland; jbrust@umd.edu I usually do not get the chance to look at many hop fields, as only a few farms have them, but they are becoming a bit more common in the last… Continue Reading
