Content by Philip Rozeboom
Absinth Wormwood Control in the Spring
Absinth wormwood is a difficult-to-control, noxious weed that can produce great amounts of seed (50,000 seeds per-stem) and spreads only by seed, illustrating the importance of management prior to seed production.
Common Stalk Borer Activity Estimate: May 24, 2024
Throughout South Dakota, common stalk borer caterpillars are still active in alternative weed and grass hosts.
Alfalfa Weevil Activity Prediction Update: May 16, 2024
South Dakota finally warmed up and as a result, alfalfa across the state should be scouted for alfalfa weevil larvae.
Early Season Prevalence of Field Pennycress and Shepherd’s Purse
Many fields that are planted to winter wheat or have yet to be tilled may have a healthy infestation of field pennycress or shepherd’s purse. Learn some expert tips for identifying and managing these weeds before they become a problem this growing season.
Current State of Noxious Weed Management in South Dakota
Results of an online survey to determine how South Dakota stakeholders are currently managing noxious weeds.
Herbicide Group Classification
The intent of providing herbicide group numbers and mode/site-of-action information on labels is to help develop herbicide plans that reduce the selection pressure on herbicide-resistant weeds. Learn how understanding this information can help improve your plans.
Alfalfa Weevil Activity Prediction Update: May 9, 2024
Although May hasn’t been extremely warm, the accumulated degree days in South Dakota since January 1, 2024, suggest that alfalfa weevil larvae could be active in several areas of the state.
Factors Influencing Spray Coverage
Learn about the different factors that influence spray coverage and how you can tailor your practices to ensure that proper coverage is achieved.
I heard cicadas are having a big year. Are they coming to South Dakota?
Cicadas are making headlines—specifically the periodical cicadas in Brood XIII and Brood XIX. Both both broods are in the Midwest and are geographically close together. Find out where you can expect to see them this spring.
Preemergence Herbicide Application Considerations for 2024
Preemergence herbicides control germinating weeds, which minimizes early-season competition with crops to keep yield potential higher. Learn what factors influence their effectiveness and what can be done to avoid control failures and unintended crop injury.