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Two pictures of two different species of thistle. Both pictures are filled with a green thistle plant and various green plants in the background.

Thistle Species Are Budding in South Dakota

Thistles are starting to bud across South Dakota. This is a critical growth stage for management, as the plants are beginning to produce seeds and herbicides are not effective.

stack of coins with faded chart lines showing in the foreground

Risk Calculator

The Risk Calculator is designed to combine crop insurance, government programs, and marketing tools together for a crop.

Professional headshot of Rhoda Burrows

Rhoda Burrows to retire after 24 years with SDSU Extension

June 16, 2025

Rhoda Burrows, professor and South Dakota State University Extension Horticulture Specialist, is retiring after 24 years with the organization.

Green wheat plants with some yellowing throughout.

Keep Watch: Wheat Streak Mosaic Virus is Developing in South Dakota Fields

Wheat Streak Mosaic Virus has been reported in South Dakota wheat fields and is also a major wheat disease for Great Plains states in 2025. The virus is sweeping across the state and is rampant in winter wheat.

A field divided into management zones to used to manage nutrient applications more precisely

Digital Farming: Free Satellite Imagery & NDVI Maps

Fact sheet about the benefits and accessibility of using satellite imagery and NDVI maps in modern farming.

Landowner viewing information on a laptop computer in a farm office.

South Dakota Ag Land Income Tracker

The South Dakota Ag Land Income Tracker is designed to estimate and display changes to the annual revenue per acre derived from standard agricultural practices on an average, unimproved cropland acre in South Dakota counties.

stack of coins with faded chart lines showing in the foreground

Financial Ratios and Trend Analysis

Financial Ratios and Trend Analysis is designed to formulate financial ratios and data, utilizing information provided by the producer.

Green aphid with black cornicles and black patterns on legs.

Aphid Populations Continue To Increase in Wheat

English grain aphid populations are continuing to increase in wheat. With increasing pressure, it is important to scout wheat fields to ensure that the populations do not cause yield loss.

Redlegged and differential grasshopper nymphs.

Grasshoppers Are Showing up in Large Numbers in Eastern South Dakota

While scouting spring wheat in Brookings County this week, we noticed grasshopper nymph populations that were close to threshold.

Green plant with bright yellow flowers throughout.

Leafy Spurge: Do I spray now or wait until fall?

In June, leafy spurge is one of our most problematic rangeland, pasture, and roadside weeds. It is also one of South Dakota’s noxious weeds that landowners are required by law to control. So should you spray it now or wait until fall?