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Green corn plant with abnormal tassel growth.

Crazy Top Disease Developing in Corn

Crazy top disease was observed in a few fields in the Southeast counties in the state. This disease develops in corn that is flooded or under full water saturation when corn has not reached the four-to-five leaf stage.

Brown and white cow grazing on standing cornstalks

Considerations for Grazing Standing Corn

Grazing standing corn is a viable option to supply nutrients to livestock. However, mitigating risk is critical to ensure healthy animals and optimize crops.

several plots of alfalfa

Aphanomyces Root Rot of Alfalfa

Fact sheet on Aphanomyces Root Rot of Alfalfa

A sprawling green field of field pea plantings

Production and Utilization of Field Peas, Lentils and Chickpeas in South Dakota

Dry field peas and lentils are high in protein and fiber, have a low glycemic index, are easy to prepare, store well, and are low in cost. Even better they can be produced economically and sustainably in South Dakota as part of diverse no-till crop production systems.

From left: Wheat plants killed by common root rot. Wheat plants with bleached heads due to Take-all disease. Bleached wheat heads due to stem maggot feeding.

Differentiating Between Wheat Head Diseases and Disorders

Several diseases and disorders can develop in wheat heads. Learn the symptoms of several common disease and insect issues being observed in South Dakota wheat this growing season.

A soybean field showing healthy soybean plants, but roots are infested with SCN. The top right corner has an in-set picture that shows a soybean root with white pear-shaped SCN female cysts.

Drought Conditions May Increase Soybean Cyst Nematode Population in Soil

Moisture stress coupled with above-normal temperatures have been linked with increased soybean cyst nematode populations in the soil. In order to keep populations in the soil below the yield-reducing levels, there are a few management practices which can be used.

Wheat blade with strip rust symptoms.

Stripe Rust Starting To Develop in Winter Wheat

Stripe rust was found in a few winter wheat fields scouted this week. The presence of a few plants with stripe rust indicates there is inoculum of this pathogen in the state.

Lone sheep grazing drought-stressed rangeland.

Drought Considerations for Grazing Range Flocks

Having a drought plan in place to best manage pastures is critical in being prepared for next year’s grazing season. Make decisions that will manage risk and promote both flock and financial longevity.

A wheat head showing the start of the flowering period. This growth stage is the best time to apply a fungicide to manage Fusarium head blight.

Use Fusarium Head Blight Risk Prediction Tools for Better Disease Management

Winter wheat has reached the flowering growth stage, which is a time of high risk for Fusarium head blight. By using disease prediction tools correctly, a producer can protect wheat from infection by applying a timely fungicide when the tools show moderate to high risk.

Mosquito resting on a dandelion seed head.

West Nile Virus Update: Sept. 17, 2021

The South Dakota Department of Health's latest update indicated that West-Nile-virus-positive mosquitoes were detected in Beadle, Brookings, Brown, Codington, Hand, Hughes, Lincoln and Minnehaha counties in South Dakota.