Crop & Pest Report

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Plant Pathology

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Fusarium Head Blight (Scab) Risk (06/28/18)

Scab risk has increased for susceptible varieties that are headed or are in the flowering stages of development.

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White Mold of Canola Risk (06/28/18)

Recent rains and canola entering bloom have prompted questions about white mold and fungicide applications on canola. Below we try to answer some questions about white mold on canola.

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Fusarium Head Blight Risk in North Dakota (06/21/18)

Winter wheat is in the flowering stages of development and some of the spring wheat has headed.

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Confirmed Report of Fungicide Resistance in the FIELD PEA Ascochyta/Mycosphaerella Blight Pathogen (06/21/18)

Resistance to the QoI fungicides (FRAC group 11) has been confirmed in the pathogen that causes Ascochyta / Mycosphaerella blight in FIELD PEA.

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Fusarium Yellows in Sugarbeet Fields (06/21/18)

Fusarium yellows/decline symptoms were observed in research plots and a commercial sugarbeet field.

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Integrated Pest Management Survey – Small Grain Disease Report (06/14/18)

The NDSU IPM scouts visited 317 wheat and 21 barley fields during May 28 to June 8.

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Updates to ‘NDSU Canola Doctor’ and ‘Sugarbeet Production Guide’ Apps (06/14/18)

The “NDSU Canola Doctor” and “Sugarbeet Production Guide” mobile apps are now available for installation on both Android and iOS devices.

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Sclerotinia Risk Map and Risk Calculator will Begin June 16th (06/07/18)

The first Sclerotinia risk map for the 2018 season will be available on June 16th, at three different websites, the NDSU Canola Pathology program, the Northern Canola Growers Association, and the Minnesota Canola Council. The Sclerotinia risk calculator will be available only at the NDSU canola pathology website.

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Early Observations in Wheat (5/31/18)

Disease reports for small grains have been minimal for much of the state and the primary causes of symptomatic leaf tissue have been abiotic (non-living stressors).

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Fungicide Selection for Early-Season Wheat Diseases (05/24/18)

Winter wheat is starting to tiller and spring wheat is emerging or in the early leaf stages. With the first herbicide pass approaching, growers will often consider tank-mixing a fungicide for early-season disease control.

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‘Sugarbeet Production Guide App’ is Available – For Free (05/24/18)

The Sugarbeet Production Guide app provides useful information to assist North Dakota and Minnesota sugarbeet growers in making timely management decisions.

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Using the Small Grain Disease Forecasting Website (05/17/18)

The small grain disease forecasting website was activated on Monday (May 14th).

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Wheat Fungicide Seed Treatment - Field and Greenhouse Research Update (05/10/18)

There are a few key factors that will influence the decision to use a fungicide seed treatment in wheat.

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Plant Populations for Highest Sugarbeet Yield and Quality (05/10/18)

Yield, row spacing, timing and other questions answered for sugarbeets

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New Plant Pathology Publications (05/03/18)

The Soybean Disease Diagnostic Series is designed to help growers identify 23 different soybean diseases

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Updates to the NDSU Extension Pest Management App (05/03/18)

Two new features will soon be available in the NDSU Extension Pest Management App. Efficacy tables for fungicides and insecticides have been compiled for problematic pests and will be incorporated into the app.

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How Soon will Sugarbeet Emerge after Planting? (05/03/18)

Sugarbeet seeds germinate and emerge over a wide temperature range in the presence of adequate moisture and oxygen.

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Estimated Sugarbeet Acreage for 2018 (05/03/18)

It is estimated that sugarbeet growers in the United States will plant 1.113 million acres of sugarbeet in 2018 which is about 2% lower than the acreage planted in 2017.

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2017 Corn Disease Survey

Over 100 corn fields were scouted in the past month to document the prevalence of foliar diseases in corn.

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Sunflower Stem Diseases (09/14/17)

A visit to sunflower fields at this time of year can provide information on what disease(s) you might face in future years. This is particularly true with stem diseases.

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This site is supported in part by the Crop Protection and Pest Management Program [grant no. 2017-70006-27144/accession 1013592] from the USDA National Institute of Food and Agriculture. Any opinions, findings, conclusions, or recommendations expressed are those of the website author(s) and do not necessarily reflect the view of the U.S. Department of Agriculture.

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