Mark VanGessel, Extension Weed Specialist; mjv@udel.edu The regional weed scientists have put together a quick reference chart for herbicide options to control the “BIG 3” herbicide-resistant weeds in the region, horseweed or marestail, Palmer amaranth and common ragweed. Use these… Continue Reading
Mark VanGessel, Extension Weed Specialist; mjv@udel.edu I have been asked a number of questions about postemergence spraying for soybeans. First and foremost, weed height should 3-inches or less for maximum control. We have all heard the stories about how an… Continue Reading
Mark VanGessel, Extension Weed Specialist; mjv@udel.edu Be aware that the last day dicamba-soybeans can be treated with a registered dicamba product is June 30. The dicamba products’ registration (Engenia, Xtend, Tavium, etc) state “DO NOT apply after June 30”. In… Continue Reading
Mark VanGessel, Extension Weed Specialist; mjv@udel.edu There have been a few calls about late season weed control in corn. Our HPPD herbicides (Callisto, Laudis, Capreno, Impact, Armezon, Shieldex) all need some atrazine with them for control and are not very… Continue Reading
Mark VanGessel, Extension Weed Specialist; mjv@udel.edu While Enlist One and Enlist Duo do not have as many label restrictions as the dicamba products, we need to read the label and follow instructions. Remember only Enlist One (2,4-D choline) and Enlist… Continue Reading
