Plants or Crops

All Plants or Crops Content

Young sunflower plants emerged in a vast field.

Overlapping Residual Herbicides May Be Necessary for Effective Weed Management

Weed management in sunflowers poses unique challenges. Compared with many other crops, there is a limited number of herbicides selections, especially postemergence herbicides.

Green leafhopper with clear wings.

Aster Leafhoppers Showing up in South Dakota Wheat

Aster leafhoppers are present in wheat again this spring. For the last few years, aster leafhoppers have been a common occurrence in South Dakota wheat.

Bird cherry oat aphids, English grain aphids, Greenbugs.

Don’t Forget To Scout for Aphids in Wheat

Aphids are present in South Dakota wheat fields, and that means it’s time to start scouting.

Green aphid with red eyes and cornicles with black tips.

Monitor Alfalfa for Pea Aphid Activity

Pea aphids can cause yield reductions to alfalfa when large populations are present. Prolonged feeding by these populations can even cause the alfalfa fields to take on a “golden” color.

Adult red sunflower seed weevil on a sunflower leaf.

Malathion receives special local needs approval to treat red sunflower seed weevils in South Dakota from July 15 to August 31, 2025

The request was submitted and approved by the Environmental Protection Agency due to the large populations of red sunflower seed weevil present in South Dakota that are resistant to pyrethroid insecticides.

Rhubarb plant with broad, green leaves.

Rhubarb: How to Grow It

Rhubarb is a perennial vegetable that can be very long-lived, often being productive for 20 years or more. Learn some expert tips for planting, growing, and harvesting it in this resource!

Producer unloading fresh, farm-grown produce from a delivery truck at a super market.

Regulatory Guidance for Selling Foods in South Dakota

Now more than ever, we are seeing food processors and entrepreneurs in South Dakota bringing their food products, not only to farmers markets, but also to retail stores. This article provides regulatory guidance and outlines the necessary steps required to allow for the sale of foods to retail stores.

Map of South Dakota with Mesonet stations marked with blue dots.

How to Use the South Dakota Mesonet Small Grains Tool

South Dakota Mesonet Small Grains Tool is an easy-to-use and efficient tool that can help identify disease risks associated with wheat leaf rust, wheat leaf spot diseases, and Fusarium head blight.

Green corn leaf with ragged holes through-out caused by common stalk borer feeding.

Start Scouting for Common Stalk Borer Activity

Enough degree days have accumulated in some areas of South Dakota for common stalk borer caterpillars to start moving to corn end rows.

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

Common Stalk Borer Activity Estimate: June 5, 2025

In the southern counties of South Dakota, degree day estimates indicate that common stalk borer caterpillars are beginning to move from weedy hosts along field edges into corn fields.