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 charts in combination with other resources, such as the Mid-Atlantic Weed Management Guide, yet it will provide a final, “Last Check” to be sure you have the right herbicides in the tank. There is one for corn and one for soybeans.
- Soybeans: LastCheckSoybean
- Corn: LastCheckCorn
Print them out and post one near your workspace on one in the mixing shed.