306 Berg Agricultural Hall
Agronomy, Horticulture & Plant Science-2207A
Brookings, SD 57007
Eric supports the citizens of South Dakota as an Assistant Professor and SDSU Extension Weed Management Specialist at the South Dakota State University campus in Brookings.
Fall-applied residual herbicides can help manage early emerging weeds, such as kochia, by using snowmelt and early spring rainfall as activating precipitation to move the herbicide into the soil layer of emerging weed seedlings.
Under hot and dry conditions, weeds are stressed and herbicide activity decreases, leading to poor management. While recent rain events have impeded row crop harvest, the moisture is welcomed to improve the activity of fall herbicide performance for noxious weeds in pastures and rangelands.
For producers facing increasing challenges from herbicide-resistant Palmer amaranth or waterhemp, incorporating a cool-season crop can provide another tool for diversifying weed management.
