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A close up view of the stem of palmer amaranth which is hairless.

Identification and Management of Palmer Amaranth in South Dakota

Guide for the identification and management of Palmer Amaranth in South Dakota

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.

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.

Two side-by-side fields. The left field is planted with perennial grass. The right field is bare with salty soil exposed.

Managing Weeds While Transforming Marginal Land Into Perennial Forages Production

There are currently millions acres across South Dakota impacted by saline and sodic conditions. Research has shown that salt-tolerant perennial grasses are a possible way to bring land back into production.

Teardrop shaped tick with a dark brown body and legs and an elongate white patch behind its head.

Ticks Becoming Active in South Dakota

The arrival of spring in South Dakota means warmer weather and more outdoor activities. However, it also brings an increase in tick activity.

Two adult wasps side-by-side. The left is black and yellow and is resting on a green leaf. The right is black, yellow and burnt orange in color and is resting on a piece of wood.

Wasp Activity Is Ramping Up

With their distinctive black and yellow stripes and tendency to hang out in groups, wasps receive attention no matter the time of year. As the weather warms up and spring progresses, you may notice more wasp activity in your yard or around your house.

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.

Two insects. The left is a wasp with a dark head, reddish brown thorax (the segment behind the head), and a black and yellow banded abdomen. The right is a hornet with a yellow head, dark brown thorax (the segment behind the head), and a brown and yellow banded abdomen.

No, It’s Not a Murder Hornet.

By now, you’ve probably read headlines about the Asian giant hornets (aka “murder hornets”) that were spotted in Washington state and across the border in Canada. It is important to note that Asian giant hornets have only been confirmed in a small area of Washington and Canada. These wasps have not been observed in South Dakota or our neighboring states.

Two dandelions side by side. The left has a bee foraging on it. The right has a hover fly foraging on it..

Why Those Dandelions in Your Yard Aren’t So Bad

While research has shown that pollinators, specifically honey bees, can’t survive on dandelion pollen alone, this doesn’t mean that the dandelions aren’t still important for pollinators.