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Green beetle larvae with a white stripe running down its body.

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 larvae and adult.

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.

A group of young workers sitting at a table putting their hands together.

SDSU Extension Releases Workforce Development Resources

October 24, 2022

SDSU Extension, in collaboration with Innovate SoDak and the Brookings Economic Development Corporation, has developed a workforce development course.

A Super SmartFeed Producer at the SDSU Cottonwood Field Station.

Range Roundup: Heifer Development With Precision Supplementation

In a recent research project, a Super SmartFeed Producer was used in conjunction with two SmartScales for precision heifer supplementation and development. Learn what this technology has to offer for ranching operations.

Oats growing in a field.

Effects of Plant Growth Regulator in Oats

Plant growth regulators are human-applied chemicals that manipulate the hormone functions in plants. Learn how they can be used in oats to help reduce lodging and prevent yield loss.

A black and yellow striped fly with large red eyes resting on a flower. The fly is covered in yellow pollen.

It’s a Bee! It’s a Wasp! No, It’s a Hover Fly!

Many types of insects are responsible for some degree of pollination in landscapes. In this article, we will focus on the syrphid fly as both an important pollinator and a beneficial insect predator.

Two, dark green aphids on a bright green leaf.

Low-Level Aphid Populations Present in Wheat

We are starting to receive reports of aphid populations in wheat fields throughout much of South Dakota. At this point in the season, weekly scouting is the best bet to monitor the populations.

Wheat field that is turning yellow due to mite infestation.

Brown Wheat Mites Active in South Dakota Wheat

There have been reports of brown wheat mites active in wheat in central and western South Dakota. To date, reports have been for minor infestations, but severe infestations are possible.

Purple-brown caterpillar with orange head on a green corn leaf.

Common Stalk Borer Activity Estimate: June 9, 2022

In some areas of South Dakota, we have reached enough degree days that common stalk borer caterpillars will begin moving into corn from weedy hosts along the edges of fields.

Green beetle larvae with a white stripe running down its body.

Alfalfa Weevil Activity Prediction Update: June 9, 2022

Alfalfa weevil larvae and some adults have been observed in alfalfa throughout the state this week, and fields should be scouted to ensure that populations don’t cause extensive defoliation.