Content by Eric Jones
Dicamba-Resistant Kochia Can Likely Be Found Across South Dakota
Kochia populations collected across South Dakota have been subjected to an herbicide effectiveness screen, where a treatment of dicamba was applied and some kochia plants exhibited survival and regrowth after treatment.
Wind and Rain May Have Delayed Preemergence Herbicide Application: What Now?
With recent winds and rain, preemergence herbicide applications may be further delayed. Scouting to determine if crops and/or weeds have emerged is critical to ensure effective and safe application of preemergence herbicides.
Dry Conditions May Hinder the Performance of Recently Applied Preemergence Herbicides
If a preemergence herbicide does not receive an activating rainfall, generally 0.5 to 1 inch of rain, many weeds will emerge, as the herbicide remains on the soil surface.
Leafy spurge has germinated and is growing rapidly in South Dakota: Scout carefully!
Leafy spurge can reduce the value and productivity of pasture and displace desirable vegetation. Now is the time to scout for infestations to determine which management tactics will be most effective.
Saflufenacil-Resistant Kochia Confirmed in South Dakota
Saflufenacil is an herbicide that can be applied at a burndown timing before most South Dakota crops to effectively manage kochia. However, overreliance on saflufenacil has selected for resistant kochia in our region.
Noxious Weeds Have Germinated in East River South Dakota
Seasonal conditions have been favorable for weed germination, including biennial thistle, Canada thistle, and absinth wormwood. Learn some tips for scouting, identifying, and managing these noxious weeds before they become a problem.
Early Preplant or Preemergence Applications for Weed Management in Corn: Which is better?
Preemergence herbicides should be a part of a successful weed management plan, as these applications limit the amount of early-season weed interference to limit yield loss and reduce selection pressure on herbicide-resistant weeds.
Watch Temperature Forecast Before a Burndown Herbicide Application
As planting season approaches, no-till fields will likely need a burndown herbicide application to manage the established winter annual and early emerging summer annual weeds.
Herbicide Carryover and Planting Bare-Root Tree Seedling in New Windbreaks
Guidelines on herbicide carryover when planting bare-root tree seedlings in new windbreaks
2,4-D (Enlist One) and Glufosinate (Liberty) Additively Control Common Weeds in South Dakota Soybean Production
Fact sheet on the experiment to determine how 2,4-D and glufosinate, when applied alone or mixed, control common weeds and affect soybean yield.