Crop & Pest Report

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Crop & Pest Report

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Scout for Spruce Sawfly (06/10/21)

In previous years, yellowheaded spruce sawfly larvae have been observed at about 830 Growing Degree Days (base temp 40F).

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Controlling Weeds under Difficult Environmental Conditions. How Can I Control Waterhemp with Ultra Blazer without Injuring my Sugarbeet Crop? (06/10/21)

The good news is sugarbeet growers have been granted emergency exemption to use Ultra Blazer in sugarbeet. The bad news is environmental conditions are challenging, sugarbeet stands are inconsistent, and sugarbeet growth stage range from cotyledon to 6-lf stage in commercial fields in 2021.

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EPA Approves Ultra Blazer in Sugarbeet (06/10/21)

The Environmental Protection Agency (EPA) approved our request for a Section 18 emergency exemption on June 2, 2021 for Ultra Blazer for control of waterhemp in sugarbeet in Minnesota and North Dakota.

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Common Lambsquarters Control with Glyphosate is Challenging under Environmental Stress Conditions (06/10/21)

One of my sugarbeet cooperative agriculturalist called and declared he has found a field with glyphosate resistant common lambquarters. Of course, I will investigate. However, I wonder if environmental conditions might explain this observation.

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Growth Stage Cutoffs for Herbicide Applications in Corn (06/10/21)

Despite our challenging start to 2021, many early planted corn fields are rapidly approaching the growth stage and height-restriction cutoffs for postemergence corn herbicides.

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Postemergence Herbicide Applications in Hot, Droughty Conditions (06/10/21)

Some areas have received rainfall this week and that’s a brief relief from the above 90° temperatures, but the weather forecasts still predict some hot and dry weather as we enter peak postemergence spray season.

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How Heat and Water Stress Effects Wheat Plants in Vegetative Stages (06/10/21)

The first half of June is normally a cool, wet period in North Dakota, perfect for the development of tillers and adventitious (crown) roots in spring wheat.

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Poor Corn Germination and Root Development (06/10/21)

The drought conditions have resulted in many fields experiencing poor corn germination, root development and early growth.

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Abiotic (Non-Infectious) Symptoms in Wheat (06/10/21)

The extreme differences in temperature, low relative humidity, and water stress has led to unusual leaf spots on wheat.

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Cereal Aphids in Wheat and Barley (06/10/21)

Low levels of cereal aphids (1 to 12% of stems infested) were found by the IPM scouts in 8% of the wheat fields scouted south of Hwy 2 in eastern ND.

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Plant Stress 2021 (06/10/21)

The term “plant stress” is used when conditions interfere with normal plant growth. Some of the recent stress factors have been a frost event at the end of May, continued dry conditions throughout the state, and extreme heat for the time of the year.

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Grasshopper Update (06/10/21)

IPM Scouts of ND and Minnesota found grasshopper nymphs in about half of the barley, wheat and soybean fields scouted last week.

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Weather Forecast (06/03/21)

The June 3 to June 9, 2021 Weather Summary and Outlook

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Southwest ND (06/03/21)

Information from the Southwest region of North Dakota

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South-Central/Southeast ND (06/03/21)

Information from the South Central/Southeast region of North Dakota.

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Northwest ND (06/03/21)

Information from the Northwest region of North Dakota.

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Northeast ND (06/03/21)

Information from the Northeast region of North Dakota.

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North Central ND (06/03/21)

Information from the North Central region of North Dakota

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Postemergence Herbicides in Wheat: What a Year (06/03/21)

What a week of temperature extremes. Many were still scouting for frost and freeze damage by the time forecast highs in the mid to upper 90’s were announced.

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Checklist of Potato Emergence Problems (06/03/21)

Many factors can affect potato emergence and cause a reduced stand.

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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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