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A field divided into two planting areas. The left area has young corn plants emerging from the soil. The right has no visible corn emergence yet.

Grassy Weeds

Grassy weeds are a problem in all field crops. They must be identified at early stages of growth so they can be controlled before crop yields are seriously threatened. Control measures are not the same for all grassy weeds, so accurate seedling identification is important.

A herd of cattle gather around a stock pond on a vast, lush grassland. Courtesy: USDA [CC BY 2.0]

2017 Weed Control: Pasture and Range

There are 24 million acres of native and tame pasture and range as well as 1.4 million acres of grass hayland in South Dakota.

a person putting tomatoes into a bag.

Growing Tomatoes in South Dakota

Few vegetables inspire us more than home-grown tomatoes, bursting with vine-ripe flavor. Tomatoes are easy to grow in containers or in the ground, and are excellent sources of vitamins A and C, as well as cancer-fighting lycopenes.

grass with field bindweed, a viny green weed with white flowers

2018 Weed Control Noxious Weeds

Noxious Weed Recommendations: Herbicides for pasture, range, and non-crop areas, including roadside and other right-of-way that may be harvested for hay or grazed, are given a priority.

Tick that is dark brown to black in color with a reddish-orange abdomen.

An identification guide to common Ticks of South Dakota

A guide to identifying common ticks in South Dakota

Several small green insects on a plant leaf.

Soybean Aphids in South Dakota

Factsheet on Soybean Aphids in South Dakota

grasshopper sitting on plant leaf

Grasshopper Mites in South Dakota

Fact sheet that covers the ectoparasite grasshopper mites.

A sprawling sorghum field ready for harvest

Sorghum Weed Control

Early competition, especially from grass, is critical for successfully controlling weeds in sorghum. There are preemergence as well as postemergence herbicides available for this crop. Early treatment provides the best control of broadleaved weeds with crop stage also being a critical factor for some postemergence treatments.

An orange beetle with black spots and a white head sitting on a green leaf

Lady Beetles of South Dakota

A guide for monitoring, properly identify, and promoting the growth of lady beetles.

Adult female emerald ash borer

Emerald Ash Borer Life Cycle in South Dakota

This fact sheet is a general description of the emerald ash borer life cycle in South Dakota.