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Adult goldenrod soldier beetle sitting on a yellow/orange flower

Goldenrod Soldier Beetle: A late-summer friend in the garden

A number of ornamentals are in full bloom, ablaze with colors and, in some cases, buzzing with insects. One such insect that you may have noticed in your lawns is the goldenrod soldier beetle or Pennsylvania leatherwing (Chauliognathus pennsylvanicus).

Green and brown grasshoppers on the leaves of a sunflower plant.

Grasshoppers Already Moving Into Sunflower Fields

With grassland food sources being depleted earlier than usual due to drought, grasshoppers are moving into nearby crops in search of vegetation. In parts of western South Dakota, grasshopper nymphs have already been observed feeding on young sunflower plants.

Black, yellow, and brown wasp in a clear container

Huge Wasps on My Tree! No, Those Still Aren’t Murder Hornets.

Another insect that has been mistaken for the Asian giant hornet (also known by its media-popularized name of ‘murder hornet’) is the horntail wasp. Horntail wasps are wood-boring insects that are harmless to humans, as they do not have venom and cannot sting.

A soybean field with plants yellowing and dropping leaves in larger portion of the field while the rest of the field has green soybean plants.

Drought Stress or Stem Canker Killing Soybean Plants?

Several soybean fields scouted in a number of Eastern counties have plants dying or dropping leaves prematurely. While the majority of these fields have drought stress causing early senescence, a few fields have also stem canker developing

Two common caterpillar pests of corn. Top: Corn earworm caterpillar. Bottom: European corn borer.

A Case of Mistaken Caterpillar Identity

Tweets about European corn borer (Ostrinia nubilalis) caterpillars in the stems of conventional corn and feeding in the whorls of corn are crossing my Twitter feed. Unfortunately, there is a problem with some of these tweets. Not all of the caterpillars that are being identified as European corn borer caterpillars are actually European corn borer caterpillars!

Vast, rolling rangeland near the Black Hills of South Dakota.

'Good, Bad and Invasive Plant Tour' set for June 3

May 28, 2021

This year's tour will take place on June 3 from 9 a.m. to 3 p.m. (CST) at Sica Hollow State Park near Sisseton.

A hand holding a brownish gray moth with a valley of green grass and trees in the background.

Army Cutworm Migration Swarms Detected in Western South Dakota

Mass populations of army cutworm moths are being reported to entomologists at South Dakota State University. Thus far, these migratory swarms have only been observed in far western South Dakota, particularly within the Black Hills.

Rows of soybean growing in corn residue in a diverse, no-till crop rotation.

Economics of Different Crop Rotation Systems in South Dakota

Economic returns are an important factor to consider when selecting crop rotation systems.

hand examining clump of soil organic matter

Soil: It’s Not Just Dirt

Most soils are complex ecosystems with worms, insects and microscopic organisms, which all work together in helping plants grow.

Interactive Grain Report Tool

The SDSU Extension Interactive Grain Report Tool provides a real-time and historical grain situation report for corn, soybeans, hard red spring wheat, and winter wheat. The tool gathers data on average state elevator cash bids, export cash bids, rail and barge costs, grain stock levels, rail cars loaded by state with grain, grain barge movements, and marketing year export inspections.