Mark VanGessel, Extension Weed Specialist; mjv@udel.edu Glyphosate-resistant horseweed, Palmer amaranth, and common ragweed have all been identified in Delaware. In addition, many fields have plants of these species resistant to Group 2 herbicides; AND a few fields in the region… Continue Reading
Nathan Kleczewski, Extension Specialist – Plant Pathology; nkleczew@udel.edu Over the past 2-3 weeks we have had several questions and concerns pertaining to “orchardgrass decline.” Orchardgrass decline is not something new to the area, and has been something Richard Taylor mentioned… 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 In the past I have talked about several different problems with garlic, be it mites, nematodes, fungal or bacterial diseases. However, this year I am seeing something different that I will… Continue Reading
Gordon Johnson, Extension Vegetable & Fruit Specialist; gcjohn@udel.edu Plantings for fall harvested vegetables will be underway in the next few weeks. Timing these plantings can be a challenge, especially where multiple harvests are needed. Plantings from early July through the… Continue Reading
