Crop & Pest Report

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Plant Pathology

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Observations from the 2019 Corn Disease Survey (09/12/19)

Over a three-week span, members of the NDSU corn pathology program were on the highways and gravel roads scouting corn fields for diseases.

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Update on Sugarbeet Diseases and harvest (09/12/19)

The major disease that affected the sugarbeet crop this year was Cercospora leaf spot.

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Late-season Head Diseases of Wheat and Harvest Considerations (08/15/19)

A pending wheat harvest provides an opportunity to diagnose late-season head diseases. The most common diseases that may be observed this year at harvest are Fusarium head blight, ergot, black chaff and sooty mold.

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Lentil Root Rot (08/15/19)

Lentil fields in northwest ND were scouted for root rot from May through July by the NDSU pulse scout (Nicole Stanhope, WREC).

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Bacterial Leaf Streak Prevalence and Commonly Asked Questions (08/01/19)

Over the past couple weeks, we have observed high levels of bacterial leaf streak (BLS) in research plots and have fielded several questions from individuals across the state.

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Late Blight Spore Trapping Network (08/01/19)

The late blight spore trapping network was started in July 2019. The threat of late blight is a looming concern for potato growers as it has potential to cause severe yield and financial losses.

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Sunflower Rust (07/25/19)

Sunflower rust is favored by frequent dews and moderate to warm temperature, and growers are encouraged to scout for sunflower rust as sunflowers approach bloom.

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Bacterial Leaf Streak Showing up in Wheat (07/18/19)

Severe thunderstorms across the state have provided suitable conditions for infection by Xanthomonas translucens pv. undulosa, the causal agent for bacterial leaf streak.

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Fusarium Head Blight (Scab) Risk and Factors to Consider (07/11/19)

There are several areas across the state in moderate to high risk for Fusarium head blight (FHB) on susceptible varieties that are flowering (Figures 1 and 2).

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Managing Cercospora Leaf Spot of Sugarbeet (07/04/19)

Cercospora leaf spot (CLS) (Figure 1 and 2) is currently the most damaging leaf disease of sugarbeet in North Dakota, Minnesota and Montana.

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Pulse Crop Update: Management of Ascochyta Blight in Chickpeas and Field Pea (07/04/19)

Ascochyta blight has been detected in three chickpea fields in Williams County (Figure 1) by NDSU pulse crop scout (Nicole Stanhope, NDSU Williston Research Extension Center).

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Wheat Leaf Rust Found in North Dakota (07/04/19)

Wheat leaf rust was found at very low levels in winter wheat plots in Cass County

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Fusarium Head Blight Risk in North Dakota (06/27/19)

Winter wheat is in the flowering stages of development or beyond, some barley will start to head soon, and spring wheat is still a week or two from entering heading and flowering stages.

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Scout for Fusarium Yellows/Decline of Sugarbeet (06/27/19)

Fusarium yellows/decline symptoms were observed in research plots and in several commercial sugarbeet fields in the Moorhead factory district.

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Wheat Disease Update (06/20/19)

IPM Survey. Wheat Rust Report. Fusarium Head Bligh (Scab) Risk in Winter Wheat.

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NDAWN Potato Blight App (06/20/19)

In 2019, the Potato Blightline will be available only through the newly released NDSU NDAWN Potato Blight app or on the NDAWN webpage (https://ndawn.ndsu.nodak.edu/potato-late-blight.html).

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Early Season Fungicide in Wheat (06/06/19)

Sprayers will soon be entering spring wheat fields to make the first herbicide pass.

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Lookout for Common Root Diseases of Sugarbeet (06/06/19)

The most common root diseases of sugarbeet are Pythium, Rhizoctonia and Aphanomyces.

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Root Rots, Seedling Blights, and Seed Decay of Corn (05/30/19)

Corn seed that has been in the soil for a couple weeks without emerging may be impacted by soil-borne and/or residue-borne pathogens.

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Aphanomyces Damping-off and Root Rot of Sugarbeet (05/23/19)

During wet and warm conditions, sugarbeet may be affected by Aphanomyces root rot caused by the pathogen Aphanomyces cochlioides.

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