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Earthworms on the soil surface inside a white hard-plastic ring, after mustard-vinegar solution was drained down through the soil profile forcing earthworms out onto the surface in order to be counted.

How’s Life in the Soil? Ask (Count) the Earthworms.

Earthworms are ‘very special’ creatures on earth, and their contribution in soil nutrient cycling and fertility management has been acknowledged from the beginning of agriculture. So, the question needs to be asked, how can we help improve earthworm populations?

Water flowing from a drain tile pipe.

Nutrient Loss Calculator

Trying to figure out the nutrient loss in your tile drainage system? The Nutrient Loss Calculator can help. This useful tool helps landowners collect a snapshot of nutrient loss in their drainage systems.

a strand of oats in a field

2020 Plant Disease Summaries for Small Grains

A number of field trials were implemented in the 2020 growing season with the general objective of assessing various disease management practices suitable for South Dakota growers and the Great Plains.

Field with purple flax flowers

Herbicide Residual Effects on Cover Crops after Wheat

Fact sheet about herbicide residual effect on cover crops after wheat.

Winter wheat emerging from a dry stand in early spring.

Assessing Winter Wheat Stand In the Spring

Overwintering of winter wheat starts in the late fall and is completed during spring regrowth. Factors, such as genetics, amount of snow cover and winter temperatures, can all play a significant role in winter survival of wheat crops.

Top: Army cutworm caterpillar. Bottom: Pale western cutworm caterpillar.

Monitor Wheat for Early-Season Cutworm Activity

It's finally warming up in South Dakota, and insect activity in wheat fields will be increasing. For wheat, a couple of early-season pests that may already be active are the army cutworm and the pale western cutworm.

Grain bin fan with a plywood cover installed on the exterior.

Check Your Bins This Spring

As it warms up this spring, don’t forget to check the bins. Grain bins work as solar heat collectors, and the grain inside of them may be much warmer than expected.

A farmer watching the sun rise in a bare, unplanted field.

Crop Tolerance to Soil Herbicide Residual

Some herbicides can persist in soil, especially dry soil. Herbicide carryover could be an issue in 2021 across the state depending upon last year’s moisture levels and field conditions.

Winter wheat plants at the tillering growth stage with leaves yellowing as a result of wheat streak mosaic virus infection.

Wheat Streak Mosaic Developing in Winter Wheat Fields

A few winter wheat fields in central South Dakota have been found with wheat streak mosaic disease. Incidence of this disease varied from a few plants to large portions of the field with yellowing leaves.

Gray caterpillar with dark markings, white splotches and a white stripe running down the middle of its back.

It’s Time to Scout Alfalfa for Cutworms

One of the earliest insect pests that can be found in South Dakota’s alfalfa fields are army cutworms. Injury from cutworms can sometimes be overlooked until large patches of an alfalfa field have been “cut.”