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It’s Time To Start Scouting for Alfalfa Weevils
This week, alfalfa weevil larvae have been spotted in the fields. Routine scouting is the best method to ensure that alfalfa isn’t heavily defiolated by this pest.
Common Stalk Borers and Why They Matter in Early Season Corn
Based on current degree day accumulations, the common stalk borer caterpillars are developing within weeds and grass hosts. Once the caterpillars outgrow these hosts they will begin moving into corn fields.
Common Stalk Borer Activity Estimate: May 24, 2024
Throughout South Dakota, common stalk borer caterpillars are still active in alternative weed and grass hosts.
Seedcorn Maggot Degree Day Activity Estimates: May 24, 2024
Parts of South Dakota are currently at, slightly below, or over the 1,080 degree days for the peak second generation emergence of seedcorn maggots.
Alfalfa Weevil Activity Prediction Update: May 24, 2024
Degree day accumulations continue to estimate alfalfa weevil activity throughout South Dakota. Alfalfa weevil activity is likely greater in southern counties, but alfalfa should continue to be scouted statewide.
Weeds Are Starting to Emerge: Even After a Preemergence Herbicide Application
During recent scouting, weeds were noticed in plots treated with preemergence herbicides. Learn some troubleshooting considerations to help determine why some weeds emerge following preemergence treatments.
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.
Alfalfa Weevil Activity Prediction Update: May 29, 2024
Most alfalfa weevil larvae that were observed this week were between the first and second instar, but it is likely that later instars are present in southern counties.
Seedcorn Maggot Degree Day Activity Estimates: May 29, 2024
Many of the northern counties are approaching enough degree days for a peak second-generation seedcorn maggot emergence to occur.
Dakota Food Rx Recipes
Recipes for Dakota Food Rx patients