Weeds & Invasive Plants
All Weeds & Invasive Plants Content
Identification and management of common cocklebur
Fact sheet to help identify and manage common cocklebur.
Identification and management of common ragweed and giant ragweed
Fact sheet to help identify and manage common ragweed and giant ragweed.
Noxious and Pasture Weed Plot Data Report
Data books to use as a reference to select appropriate herbicide(s) for noxious and pasture weed
Enlist One (2,4-D) and Liberty (Glufosinate) Applied Alone or Mixed During the Day and Night: Weed Control and Soybean Yield Implications
Fact sheet on the research done to determine weed control effectiveness with Enlist One and Liberty alone and tank mixed when applied during the daytime and nighttime.
South Dakota Pest Management Guides
The South Dakota Pest Management guides are now available for free. The guides offer recommendations for controlling weeds, insects, and diseases in a variety of South Dakota crops.
Current State of Row Crop Weed Management in South Dakota
Results of an online survey to determine how South Dakota stakeholders are currently managing row crop weeds.
Another Revisitation of Using 2,4-D and Dicamba for Corn Weed Management: Application timing and rates matter
While doing some final weed control ratings this season, ears were pulled from plants in plots treated with 2,4-D, dicamba, and a standard Group 27 herbicide program pre-and-postemergence. Learn what impacts these herbicides had on the ear's size and appearance.
Managing Waste Pesticides: Restricted Use Pesticides
While pesticides are intended only to impact pests, they can have negative consequences on unintended targets, such as humans and wildlife, if not handled properly. Learn what steps you need to take to safely dispose of unused pesticides and comply with regulations.
Isolated Female Waterhemp Plant Produced Seed: Implications that pollen is in the air
Recent observations by the SDSU Extension Weed Science team highlight that pollen can move far distances to pollinate isolated female plants. This reinforces the need to effectively manage weeds in fields and adjacent areas.
Fall-Applied Residual Herbicides
Many parts of South Dakota can experience dry conditions when residual herbicides are applied, resulting in inadequate weed control. In these areas, residual herbicides can be applied in the fall and take advantage of a longer period to receive activating precipitation.