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Stripe Rust Found in Winter Wheat at Low Severity
Stripe rust was observed in the crop performance trials at the Dakota Lakes Research Farm in Hughes County and at Ideal in Tripp County. At both locations, stripe rust was at a low severity.

Winter Wheat Diseases Update: Fungal Diseases and Barley Yellow Dwarf Developing
Tan spot and powdery mildew as well as barley yellow dwarf were found developing at low levels in winter wheat fields scouted the week of May 24, 2020.

Soybean Cyst Nematode in South Dakota: History, Biology, and Management
Factsheet about Soybean Cyst Nematode history, biology and management in South Dakota

Does Early Fungicide at Tillering Result in a Profitable Yield?
Tan spot and powdery mildew pathogens are two residue-borne pathogens that can infect wheat early in the season. These diseases can lead to poor tillering, and their continued development can lead to yield loss.

2019 Wheat Field Plot Trials Summary: Fungal and Bacterial Disease Trials
This publication provides a summary of wheat trials conducted in 2019 to determine efficacy of various products in managing wheat diseases.

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.

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.

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.

Assess for Corn Stalk Rots
Several corn fields are beginning to show stalk rot and top dieback symptoms. Stalk rots cause the entire plant to die prematurely, which can lead to plants lodging under windy conditions making harvesting problematic.

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.