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corn field with sunrise in the background

2019 Corn Fungicide Field Trials Summary

This document contains results of corn field trials conducted during the 2019 growing season to evaluate foliar fungicides to manage various corn diseases.

An unplanted field with weeds growing throughout.

Managing Weed Seed in 2020

Producers need to plan in advance on how to deal with bare fields that contain an overabundance of weeds. Weeds in these fields have deposited significant amount of seeds on the soil surface, which can easily germinate when adequate moisture and temperature are available.

A teardrop shaped tan tick with eight legs and brown markings on a white background.

Winter Ticks in South Dakota

Winter ticks, also called moose ticks, are unlike other tick species because they are active during the winter months.

Woody looking zucchini plant.

What’s Killing My Zucchini and Squash Plants?

For many of us, this time of year is tough for our zucchini, squash and pumpkin plants. A close inspection of wilting plants may reveal a sawdust-like substance around the soil surface or on the base of the stem. When pushed, the plants typically break and reveal clear evidence of insect feeding through the stem.

Two leaves of corn, one showing signs of Southern Rust, the other with Common Rust.

Southern Rust Developing Late in Corn

Southern rust was found in a few corn fields scouted last week. This rust is developing very late in the season and therefore its impact on corn yield will be minimal.

Brown beetle with hairy body with black mottled pattern.

What are Those Large Beetles in My Garden?

One of the insects that starts to attract attention this time of year is the bumble flower beetle.

Black beetles with orange or yellow spots feeding on a ripe tomato.

Insects are Invading My Produce!

Ripe fruit that has been injured as well as ground fall fruits often attract undesirable insects into an area.

Black beetles with heads as wide as thorax on brown soybean pods.

Broad-Headed Bugs in Soybean: Should You Be Worried?

This week we received a report of insects infesting a soybean field. However, they weren’t insects that we generally think of when the term "soybean insect pests" comes up.

A group of brown cattle foraging in a green field.

Prussic Acid Poisoning

As the first frost date approaches, producers often have concerns about the risk of prussic acid poisoning in livestock. Certain forage plants, especially sorghums and related species are associated with an increased risk of death loss because of prussic acid poisoning.

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.