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Mottled brown grasshopper nymph sitting on a green leaf. Wing pads are easily observed in the image.

Grasshoppers Continue to Be an Issue During 2023

We have received numerous reports of very large populations of grasshopper nymphs in June. Before management action is taken, it is important to determine what stage observed grasshoppers are at.

White larvae in brown soybean pith.

Dectes Stem Borer Observed in Soybean

We have received an increased number of Dectes stem borer reports in South Dakota soybean, and we are currently scouting to determine which counties have the highest risk for Dectes stem borer issues.

Gray beetle with long antennae that are alternating white and black pattern on green leaf petiole.

Will Dectes Stem Borer Be a Problem for Sunflowers in 2023?

Dectes stem borer are a major topic for sunflower management in South Dakota every year. If drought conditions persist, this pest may cause problems in sunflower if left unadressed.

A wheat stem sawfly with long antennae, smoky wings, and black and yellow coloration.

Wheat Stem Sawfly Adults Observed in Northwestern South Dakota

Wheat stem sawfly adults have been captured in northwestern South Dakota. The observation of this pest can be used to determine areas where solid-stem wheat varieties should be considered.

Kristine Lang and Rhoda Burrows look at some plants with two men inside a high tunnel

The South Dakota State University Southeast Research Farm to host Field Day on July 11

June 30, 2023

The South Dakota State University Southeast Research Farm Field Day will be held on July 11 near Beresford, South Dakota.

A yellow ear of sweet corn.

Using Dried Corn

Fact sheet on ways to use dried corn

Striped cucumber beetle and spotted cucumber beetle.

Striped Cucumber Beetles Are Active in South Dakota

South Dakota is home to two species of cucumber beetles that can cause severe injury to cucurbits, including squash, cucumbers, melons and pumpkins. Learn how to detect and manage both beetles before they impact your harvest.

Squash vine borer moth on plant.

Squash Vine Borer Activity Estimate: June 21, 2023

Squash vine borer moths will soon emerge across much of South Dakota, and their larva can cause serious damage to squash plants. See our latest activity predictions and management recommendations based on forecasted conditions from around the state.

Several small, light colored grasshopper nymphs feeding on green leaves plants. The leaves of the plants have small holes in them.

Grasshoppers Causing Headaches in South Dakota Gardens

Grasshopper populations are causing extensive defoliation around yards and gardens in our region this summer. Learn some important considerations for scouting populations and applying insecticides if needed.

Left: Black silage tarp spread out over a research plot. Right: Clear tarp spread out over a research plot.

What is Soil Tarping and Why is it Used?

Soil tarping is a technique that uses large tarps to cover a growing space in order to reduce weeds and improve soil health before planting. Learn some expert insights into two commonly used soil tarping strategies.