Mark VanGessel, Extension Weed Specialist; mjv@udel.edu Corn herbicides need to be applied at the correct timing to avoid crop injury; and the weeds need to be small (3-4 inches depending on the herbicide) for effective control. Many labels state from… Continue Reading
Kate Everts, Vegetable Pathologist, University of Delaware and University of Maryland; keverts@umd.edu Several plants with suspected Dickeya dianthicola symptoms have been reported in the mid-Atlantic region in spring 2017 and sent for diagnosis. The results of the tests are still… Continue Reading
Bill Cissel, Extension Agent – Integrated Pest Management; bcissel@udel.edu Sawflies and True Armyworms Sample small grain fields for grass sawflies and true armyworms. A sweep net can be a quick and effective way to initially detect grass sawflies. Once you… Continue Reading
Bill Cissel, Extension Agent – Integrated Pest Management; bcissel@udel.edu Scout seedling corn for cutworm damage, even if an at-planting insecticide application has been made. Fields at greatest risk include no-till, late planted, poorly drained fields, and fields with heavy weed… Continue Reading
Bill Cissel, Extension Agent – Integrated Pest Management; bcissel@udel.edu I have seen a few corn fields with slug feeding injury. Slugs use their rasping mouthparts to feed on corn leaves, giving them a shredded appearance. Under heavy slug pressure, slugs… Continue Reading
