Tour the grounds of the UDBG in Newark OR the Sussex County Extension Office in Georgetown to identify insects, diseases, and beneficial insects in the landscape. Instructors: Nancy Gregory, Brian Kunkel, Carrie Murphy, and Tracy Wootten Cost: $15 Wednesday, June… Continue Reading
Nathan Kleczewski, Extension Specialist – Plant Pathology; nkleczew@udel.edu I am now seeing some of that powdery mildew and leaf blotches that were lower in the canopy on the flag leaves of susceptible varieties. Some varieties are showing more hypersensitive responses… Continue Reading
Joanne Whalen, Extension IPM Specialist;jwhalen@udel.edu Alfalfa Continue to sample for potato leafhoppers on a weekly basis. Although adults are the main life stage present, we are starting to see the first nymphs. Both life stages can damage alfalfa but the… Continue Reading
Gordon Johnson, Extension Vegetable & Fruit Specialist;gcjohn@udel.edu The effects of winter injury on grapes is now very evident. Affected grape vines are delayed in leafing out, have week shoots or limited shoots, and in severe cases, have been killed down… Continue Reading
Gordon Johnson, Extension Vegetable & Fruit Specialist;gcjohn@udel.edu Parthenocarpy is the ability of a plant to set fruit without pollination. Parthenocarpic cucumbers have been available for many years and include many types used in protected culture (greenhouse cucumbers). Parthenocarpy has an… Continue Reading
