Nathan Kleczewski, Extension Specialist – Plant Pathology; nkleczew@udel.edu We have seen several cases of pre- and post-emergent damping off in corn caused by Pythium in recent weeks. Mild to moderately infected seedlings often are stunted and grow more slowly than… Continue Reading
Joanne Whalen, Extension IPM Specialist; jwhalen@udel.edu Alfalfa Continue to sample for potato leafhoppers on a weekly basis. As temperatures increase you will see an increase in populations. Once plants are yellow, yield loss has already occurred. The treatment thresholds are… 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
Joanne Whalen, Extension IPM Specialist; jwhalen@udel.edu Brown Marmorated Stink Bug Although populations were lower the previous two springs due to colder overwintering conditions, it appears that populations could be higher this season. Although trap catches in Delaware are not as… Continue Reading
Gordon Johnson, Extension Vegetable & Fruit Specialist; gcjohn@udel.edu Windstorms across the state last week caused significant damage to vegetable crops. Signs of this damage included torn leaves, dessicated (wind burnt) leaves and stems, broken or lodged stems and sandblasted and… Continue Reading
