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Color-coded map showing rainfall accumulation at the locations of the four hub study sites in South Dakota. For assistance reading this graphic and data set, please call SDSU Extension at 605-688-6729.

Range Roundup: Precision Agriculture Range Project With Producer Participation

SDSU Extension researchers started a new precision agriculture range project using remote sensing, machine learning, and ground-collected vegetation samples to develop an application to measure forage quality and quantity throughout the state in near real-time.

Two young woman inspecting plants growing on a vast, open range.

Range Roundup: South Dakota Women on the Range

With the percentage of women in agriculture expected to grow over the next few years, SDSU Extension will be launching a new program called South Dakota Women on the Range. The program will educate women about the importance of range management, while also empowering them to become leaders in the agriculture industry.

White net covered in green larvae.

Alfalfa Weevil Activity Prediction Update: June 19, 2024

Across South Dakota, degree day estimates indicate that alfalfa weevil activity should be completed. However, our field observations this week suggest otherwise.

Green alfalfa weevil larvae with a white stripe running down its body.

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.

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

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.

Left: Alfalfa weevil larvae. Right: Alfalfa weevil adult.

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.

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

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.

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

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.

Tan grasshopper with light colored stripes on its back sitting on the soil surface.

South Dakota Grasshopper Prediction for 2024

In 2024, grasshoppers are likely to cause problems in areas of South Dakota due to large populations that were present in 2023 and the relatively late first hard freeze date observed in much of the state.

A small black bug with tan margins on its wings resting on a grass seed head.

Keep an Eye on Black Grass Bugs This Spring

In South Dakota, black grass bugs are a common spring pest of forage grasses. This native insect first appears in late April and May when grasses emerge from dormancy.