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A herd of sheep foraging on leafy spurge in a grassland.

Multi-Species Grazing as an Alternative to Pasture Spraying

Broadacre spraying of pastures is intended to reduce undesirable plants and increase grasses for livestock. This practice often results in unintended consequences, including damage and reduction of native forbs and reduced profitability. One approach to managing perceived “weedy” plants is incorporating different species of livestock into a grazing operation.

A group of mixed cattle grazing in a pasture with several Canada Thistle plants spreading throughout.

Alternative Pasture Weed Control

The term ‘weed’ can be broadly applied to any plant that is undesirable at any given time and place based on certain criteria. It is important to understand that the word ‘weed’ has become a general term with no universal definition, and many plants are considered to be weeds, depending on location.

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

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.

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

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 yearling heifer grazes on Canada thistle after a mid-October snowfall.

Plan Now to Control Weeds With Grazing Next Season

Livestock will graze Canada goldenrod, Canada thistle and perennial sow thistle. At certain times of the year, these plants have crude protein, total digestible nutrients, and invitro dry matter digestibility concentrations similar to alfalfa and other common forages.

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.

Several wrapped bales of hay lined up near a barn.

Round Bale Storage Conservation

Fact sheet discussing conservation of round bale storage.

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.

Rancher surveying pasture in an offroad vehicle.

Use Caution When Fall Spraying Noxious Weeds in Pastures To Avoid Harming Desirable Plants

Noxious weed control is often a long-term process. In some cases, chemical application may be deemed necessary, but it should always be considered in the context of appropriate management and an integrated best management framework.

Rangeland covered with dense thickets of maturing cedar trees.

Cedar Trees and Rangeland Loss

The issue of cedar tree invasion into South Dakota’s rangelands tends to be a regional conversation. There is generally broad agreement among most resource professionals that these trees are in fact changing our landscape in a negative way.