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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.

Series of trophies on display at a 4-H contest.

South Dakota 4-H Missed Deadline Agreement

Form for missed deadlines for State 4-H Events

Field with field peas and blue sky with fluffy white clouds

Weed Control: Pulse Crops

Weed competition can cause significant yield reduction in pulse crops. Pulse crops are weak competitors with weeds, therefore planning an effective weed control program is one of the keys to profitable production.

Field with field peas and blue sky with fluffy white clouds

Production and Utilization of Field Peas in South Dakota

Guide to field pea production and utilization in South Dakota

A close up of prickly Russian thistle

Prickly Russian Thistle

Publications that provide introductory and expanded information on the notorious invasive plant, prickly Russian thistle.

Several wrapped bales of hay lined up near a barn.

Round Bale Storage Conservation

Fact sheet discussing conservation of round bale storage.

A small black bug with tan margins on the wings. This insect is resting on a blade of grass that is green with white spots.

Black Grass Bug Activity Expected in Coming Weeks

Spring green-up is the time to be watching for black grass bug activity. Large populations of this early-season pest can cause severe damage to pasture (up to 90% forage reduction) and infest the edges of wheat fields.

A patch of soil with kochia weeds growing throughout.

Temperature and Herbicide Performance

In South Dakota, the spring can come with a wide range of temperature fluctuations. This will affect the performance of burndown herbicides. Depending upon the target weed, type of herbicide and application rate, there will likely be decreased weed control in cooler temperatures.

A red sprayer in a green field with a cloudy sky in the background.

How to Stop Drift

The goals of applying any crop protection products include: increasing effectiveness, mitigating drift, and maximizing profits. We will focus on mitigating drift, even though all three interact with each other.

A field of flowering alfalfa.

Precautions for Grazing Weevil-Infested Alfalfa

Alfalfa weevil populations are high this year, creating challenges for producers. Questions have arisen on how to get some value out of the forage by grazing it rather than putting it up for hay.