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Illustration of a stable fly, horn fly and face fly.

Fly Control Considerations for Cattle on Pasture

Along with being irritants to livestock, horn flies, face flies and stable flies are economically important to producers due to their negative impacts on milk production and calf weaning weights.

patch of reed canary grass in pasture

Reed Canary Grass: Possible Prussic Acid & Alkaloid Issues

Prussic acid issues with reed canary grass are poorly understood and may go unrecognized if they occur. This article addresses a little-known but interesting aspect of the biology of reed canary grass.

grey to brown fly with large eyes and elongated mouthparts

What are Those Gigantic Flies?

As we progress later into the summer, we commonly see an increase in horse fly activity.

two black beetles rolling a ball of dung

Promoting Dung Beetles on the Range

In South Dakota, dung beetles help regulate rangeland health through dung dispersal.

a sprawling green plant with flowering yellow heads

Sweet Clover Poisoning

Hay that contains sweet clover can be an excellent feed as long as the dicoumarol level is known and feeding management is used to prevent poisoning.

abandoned barn surrounded by flood waters. Photo by Jeannie Mooney, FEMA

Effects of Spring Flooding on Weed Seed Movement

How does spring flooding impact weed seed movement and dispersal? The flooding that is occurring from spring snow melt may cause weed seeds that are on the soil surface or eroded soil to move, and possibly long distances.

spruce tree seedling with weeds beneath it

Weeds Around Spruce Seedlings?

I have many producers call wanting a control for the broadleaf weeds coming up around their young Colorado and Black Hills spruce seedlings. At this time of year we are looking at post-emergence herbicides to control weeds that have become established.

an orange lady beetle with nine black spots

Lady Beetles of South Dakota

Lady beetles are one of the most familiar groups of beneficial insects. Farmers and gardeners appreciate them for devouring insect pests. Both adult lady beetles and caterpillar-like juveniles eat pests.

a downy woodpecker resting on a wooden pole

Woodpeckers Attacking Bur Oaks

Woodpeckers have been seen across the region chipping away at the bark of young bur oak. The woodpeckers can shred most of the bark from young trees, enough that the trees are killed by this injury.

several medium-size cedar trees growing along a fence

Woody Weeds: Eastern Red Cedar

While eastern red cedar (Juniperus virginiana) is native to South Dakota, and has many positive qualities, it has become a problem species over large areas of the Great Plains.