Crop & Pest Report

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Plant Pathology

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Plant Population for Highest Recoverable Sucrose (05/28/20)

Researchers at North Dakota State University and the University of Minnesota have demonstrated that a wide range of plant population with uniformly spaced plants resulted in high yield and recoverable sucrose, but plant populations of 175 to 200 plants per 100 foot of 22-inch wide rows consistently resulted in the maximum recoverable sucrose per acre. It is critical that the plants be evenly spaced within the rows.

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Tips for Spring SCN Soil Sampling and Seed Selection (05/21/20)

Below is a news release from The SCN Coalition, a partnership of universities, companies and soybean checkoff organizations whose mission is to help grower manage SCN. The press release is timely.

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Soybean Cyst Nematode Distribution in North Dakota (05/21/20)

Between 2013 and 2019, over 4,000 SCN soil samples have been submitted by North Dakota growers using the Soybean Cyst Nematode (SCN) sampling program operated by NDSU Extension.

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Response from an Early Season Fungicide in (05/07/20)

A common practice that will occur in the coming weeks is tank mixing a fungicide with the first herbicide pass in wheat (Figure 1).

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How Average Daily Soil Temperature Impacts Sugarbeet Seed Emergence (05/07/20)

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

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Seed and Residue Serving as Pathogen Reservoirs for Wheat (04/30/20)

Planting season has begun and questions have been asked pertaining to how pathogens survive. This includes the risk of using bin-run seed and seeding wheat after a previous crop of wheat or corn. This article will review some of the most important seed-borne and residue-borne diseases in North Dakota.

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Staying Safe and Productive for the Growing Season (04/30/20)

We are starting the Crop and Pest Report earlier this year. As we are all aware, we have a pandemic of a respiratory disease that spreads from person to person by a new coronavirus called ‘Coronavirus Disease of 2019’, shortened to ‘COVID-19’.

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Projections and Best Management Practices for 2020 Sugarbeet Crop (04/30/20)

Growers in the US grow and process sugar from sugar cane and sugarbeet. Sugar cane is produced in Florida, Louisiana, and Texas and sugarbeet is produced in Minnesota, North Dakota, Idaho, Michigan, Montana, Nebraska, Colorado, Wyoming, Oregon and California.

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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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