Crop & Pest Report

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Plant Pathology

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Be on the Lookout for Wheat Streak Mosaic Virus (06/11/15)

There have been several cases of yellowing wheat this year and most have been attributed to nutrient deficiencies and/or the cold wet weather experienced in May.

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Bacterial Blight of Peas in North Dakota and Minnesota (06/11/15)

Samples of field peas with moderate to severe symptoms of bacterial blight have been received by the NDSU Plant Pathology Department.

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Stripe Rust Detected in North Dakota (06/04/15)

On Monday, we received a wheat leaf sample collected by Dr. Janet Knodel and Sam Haugen (Plant Pathology graduate student) that was confirmed as stripe rust.

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Pythium of soybeans (05/28/15)

Soybeans are sensitive to multiple pathogens (see previous article), but I am concerned about Pythium infections in the earliest planted soybeans. Pythium is favored by cool soils, generally less than 60o F and lots of water. Soybeans that were planted three weeks ago had lots of both.

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Look for Root Rots (05/28/15)

Fields that were planted before the heavy rains began and the cool temperatures set in a couple weeks ago are at high risk for root rot development.

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Small Grains Disease Forecasting Model Website Activated (05/21/15)

After several days of precipitation and with cool weather in the forecast, this is a good time to start scouting winter wheat and spring wheat for fungal leaf spots.

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Sugarbeet Plant Populations for Highest Yield and Quality (05/14/15)

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 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 important that the plants be evenly spaced within the rows.

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Soybean Cyst Distribution in North Dakota (05/14/15)

During the last two growing seasons, Soybean Cyst Nematode (SCN) has been confirmed in seven additional North Dakota counties.

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NDSU Potato Blightline to Operate in 2015 (05/14/15)

The Plant Pathology Department at North Dakota State University will again be providing the potato Blightline service at no charge to the potato industry of North Dakota and western Minnesota in 2015.

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Overview of Wheat Seed Treatments (05/07/15)

Seed treatments are very important in wheat production and the decision to use one can revolve around several factors such as crop rotation, seed source, planting conditions, history of pest problems, and economics.

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Projections for 2015 Sugarbeet Crop (05/07/15)

Topics Covered include: Sugar production from sugarcane and sugarbeet U.S. sugarbeet acreage Minnesota and North Dakota What are some basic practices growers can follow? What is the status of sugarbeet planting? Practice safety

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Few Tips to Manage Root Rots in Field Peas (05/08/14)

There were serious incidences of field pea root rots in the north central and the north western regions of North Dakota last year.

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Small Grain Disease Forecasting Site (06/13/13)

Almost all NDAWN locations have had continuous days of weather favorable for tan spot infection in the past week

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