David Owens, Extension Entomologist, owensd@udel.edu Corn Continue scouting for cutworm activity. A report came in this week of cutworm injury to vegetables, so they are still active. Thresholds are 5% cut plants with larvae present. Dig around the base of… Continue Reading
San Jose Scale San Jose Scale crawlers are now active. We intercepted adult males between April 13 and April 20 from orchard sites in Dagsboro, Denton, and Port Penn. Effective insecticides include pyriproxyfen (Esteem), buprofezin (Centaur), neonics, organophosphates, and spirotetramat… Continue Reading
David Owens, Extension Entomologist, owensd@udel.edu Sweet Corn The earliest sweet corn is now silking. As a general reminder, thresholds for silking sweet corn can be found on the Insect Trapping webpage: https://www.udel.edu/academics/colleges/canr/cooperative-extension/sustainable-production/pest-management/insect-trapping/. The last time I looked, the links for… Continue Reading
Mark VanGessel, Extension Weed Specialist; mjv@udel.edu Several folks have shifted to using glufosinate to help manage herbicide resistant weeds. This is a herbicide that is very dependent on sunlight for optimum performance. The following is directly from the Liberty label:… Continue Reading
Mark VanGessel, Extension Weed Specialist; mjv@udel.edu There has been a lot of herbicide injury observed this spring, more than most years. There are several reasons for this, with Mother Nature at the top of the list. There is a selectivity… Continue Reading
