Insect & Pests
All Insect & Pests Content
Bean Leaf Beetles Active in South Dakota
Soybeans in South Dakota are being targeted by the overwintering population of bean leaf beetles. See our latest activity report from around the state, along with scouting and management recommendations.
Alfalfa Weevil Larvae Are Active in South Dakota
Alfalfa weevil larvae have been confirmed in alfalfa fields in South Dakota, which means it is time to start scouting fields more regularly. Learn some tips and consideration for scouting your fields.
Alfalfa Weevil Activity Prediction Update: May 26, 2022
Throughout the state, all alfalfa fields should be scouted weekly to ensure that large populations of alfalfa weevils do not cause excessive defoliation like what we observed in 2021.
Alfalfa Weevil Activity Prediction Update: May 18, 2022
At this point in the season, all alfalfa fields should be scouted weekly to ensure that large populations of alfalfa weevils do not cause excessive defoliation.
Seedcorn Maggot Degree Day Activity Estimates: May 26, 2022
Many areas in South Dakota have reached peak emergence for the second generation of seed corn maggots, while others are still approaching it.
Common Stalk Borer Activity Estimate: May 18, 2022
At this point in the season, no scouting is necessary for common stalk borers, but many areas of the state are reaching the point where weeds along field edges should not be managed for the time being.
Alfalfa Weevil Activity Prediction Update: May 12, 2022
The forecast for the next week will continue to be favorable for the development of alfalfa weevils. See our latest recommendations for staying ahead of them.
Alfalfa Weevil Activity Prediction Update: May 5, 2022
One of the insects we monitor for using degree day accumulation is the alfalfa weevil. With warmer temperatures in the upcoming forecast, the need to scout for alfalfa weevil activity will increase.
Beneficial Pollinators: Honey Bees and Bicolored Striped-Sweat Bee
With temperatures increasing in South Dakota, expect to see an increase of beneficial pollinators searching for blooming plants. Learn about two important pollinators, the honey bee and the native bicolored striped-sweat bee.
Common Stalk Borer Activity Estimate: May 26, 2022
Not much has changed in terms of degree day accumulation for common stalk borers since last week. Cold low temperatures prevented most of the state from accumulating very many degree days.