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Crop Treatments

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a close up of a field of wheat

31st Annual Winter Wheat Meeting Scheduled for August 27 in Draper

August 20, 2019

The Jones County Crop Improvement Association, along with SDSU Extension, will be hosting the 31st Annual Winter Wheat Meeting at Draper, S.D., on August 27. This meeting provides South Dakota wheat producers with the most recent South Dakota State University wheat variety trial results, as well as other information on winter wheat production in South Dakota.

Wheat, Crop Management, Crop Treatments

a close up of a field of wheat
Aug 27

31st Annual Draper Winter Wheat Meeting

The Jones County Crop Improvement Association, along with SDSU Extension will be hosting a meeting on Aug. 27, 2019 at 6:30 PM CDT at the City of Draper Auditorium (Draper, SD 57531).

Wheat, Crop Management, Crop Treatments

A sprayer applying pre-emergent pesticide to a bare field.

Herbicide Rotation Restrictions

This is a quick reference guide to common herbicides and their rotation restrictions for selected crops.

Two diseased wheat plants side-by-side. The wheat heads on the left have ergot bodies throughout. The wheat plants on the right are infected with Fusarium head blight.

Assess Your Fields for Ergot and Fusarium Head Blight Before Harvest

The 2019 wheat harvest is well underway in South Dakota, with many acres of winter and much of the spring wheat crop left to harvest. To date, reports on yield and quality have been variable, depending on when the crop was seeded, weather conditions at important growth stages (such as flowering and grain fill) and disease pressure throughout the season.

Two corn diseases displayed side-by-side. The left corn plant has holcus spot lesions on its leaves. The right has paraquat drift injury.

Holcus Spot or Plant Injury?

Is your corn developing spots? Corn fields have been found with what appears to be Holcus spot, a bacterial disease. Upon further investigations, the leaves were found to be negative for any plant pathogens.

Symptoms of three common corn diseases. From left: anthracnose leaf blight, common rust and eyespot.

Is a Fungicide Needed for Developing Corn Diseases?

Corn is starting to tassel in several locations across the state. This is also the growth stage when a fungicide may be applied to control fungal leaf diseases. Diseases currently starting to develop are: anthracnose leaf blight, common rust and eyespot.

A sprawling wheat field with gray, mostly cloudy skies in the background.

Small Grain Pre-Harvest Options

Consider pre-harvest herbicide applications in crop ground planted with small grains that are grown for seed or forage. Dense weed populations may inhibit harvest, therefore proper control of them early in the growing season is best.

Corn plants with noticable rotting near the bottom stem.

Fusarium Root and Crown Rot Developing in Corn

A few corn fields scouted in Brookings County were found with Fusarium root rot at low levels. Infected plants were wilting and upon splitting of the lower nodes revealed brown discoloration of the pith. Root and crown rots developing in corn after the seedling stage are usually caused by Fusarium spp. and can be enhanced by injury to the roots or crown, mainly by insect feeding.