Skip to main content

Search

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.

A patch of western wheatgrass with ergot fungus growing throughout.

Ergot in Western Wheatgrass and the Potential Effects for Winter Grazing

2019 has been a year fraught with challenges for ranchers across South Dakota. Abundant precipitation is usually a blessing, however, wet conditions coupled with a cool spring followed by warmer temperatures has caused another problem across the rangelands of South Dakota: ergot poisoning.

Gibberella ear rot and Fusarium spp. symptoms on two corn ears.

Gibberella and Fusarium Ear Rots Developing in Corn

Corn ear rots are one of the last diseases to scout for in the corn growing season, and sometimes they are ignored or forgotten entirely. Ear rots can cause yield loss in the form of grain quality at harvest, but also cause losses during storage.

sun rising over South Dakota field

South Dakota Pest Management Guides

The South Dakota Pest Management guides are now available for free. The guides offer recommendations for controlling weeds, insects, and diseases in a variety of South Dakota crops.

Sunny field with large puffy clouds and blue sky

2020 South Dakota Pest Management Guides Released

January 24, 2020

The 2020 South Dakota Pest Management Guides are now available for free on the SDSU Extension website.

A producer loading a planter with fungicide-treated soybean seeds.

Pre-Plant Disease Management Considerations

If the forecast holds true, it looks like it is going to be another year of excessive soil moisture and possible flooding come this spring. The increased level of soil moisture has implications with regards to plant stand establishment as well as root rot and nematode infestations.

An ear of corn in a field with visible white mold on the tip of the ear.

Can Livestock Utilize Moldy Grain?

While livestock producers know that moldy grain and forage are not ideal feedstuffs, they also know that stored feed occasionally contains a small amount of visible mold, and that their animals consume it with no obvious adverse effects. The question arises, how much mold is too much for a feed to be unsuitable for animals?

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.

soybean pods

2019 Soybean Fungicide Field Trials Summary

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

Spring wheat emerging from a field of corn stubble.

Planting Spring Wheat Into Corn or Milo Residue: Considerations for Scab

Due to current grain prices and other reasons, growers may be considering planting spring wheat into fields that were planted to corn or milo last season. While this type of crop rotation is not generally recommended, economic and logistical challenges sometimes may dictate otherwise.