Crop & Pest Report

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Crop & Pest Report

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New Potassium Recommendations for North Dakota Crops (08/31/17)

During the past 3 years my graduate students and I have worked on the yield response of corn to fertilizer potassium (K).

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Corn Kernels with Red Streaking (08/31/17)

Earlier this week I received a question about the cause of red streaking in developing corn kernels.

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Cover Crop Tour - NDSU Campus Fargo September 26 (08/31/17)

Showing various cover crop species in the field and learning about the benefits of cover crops, will be the focus of a North Dakota State University Extension Service field day on Tuesday, September 26.

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Wheat Stem Sawfly Lodging (08/31/17)

Lodging from wheat stem sawfly was observed this past week near Grenora in Divide County, northwest North Dakota (Source: Clair Keene, Area Extension Specialist/Cropping Systems, Williston REC).

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Late Season Soybean Aphids (08/31/17)

Soybean aphid infestations near the economic threshold (E.T.) of 250 aphids per plant and 80% incidence have been reported in some soybean fields in the R6 (full seed set, green seed that fills pod in one of four uppermost nodes) in southeast North Dakota.

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SCN Sampling (08/31/17)

When to sample, where to sample, how to sample and more answered.

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2017 Soybean Cyst Nematode Sampling Program (08/31/17)

The NDSU Extension Service and the North Dakota Soybean Council are working together again to coordinate a soybean cyst nematode (SCN) soil testing program. A total of 2,000 SCN soil test bags will be available to growers on a first come first serve basis.

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What is Soybean Cyst Nematode (SCN) and Why is it Important? (08/31/17)

Soybean cyst nematode (SCN) is a microscopic and parasitic worm (scientific name is Heterodera glycines). It is the most destructive pathogen of soybeans in North America and yield loss estimates from SCN have been measured between $100s of millions to over $1 billion annually.

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Soybean Seed Quality from Dicmaba(08/17/17)

Most phone calls and emails received are about how much yield loss may occur from dicamba affected soybean.

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North Central ND (08/17/17)

Information from the North Central region of North Dakota.

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2017 Iron-Defeciency Chlorosis Ratings Available (08/17/17)

During the 2017 growing season, Iron-deficiency chlorosis (IDC) has been observed in many soybean fields in North Dakota and northwestern Minnesota.

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2nd Generation of Thistle Caterpillars in Soybeans – Scouting Tips (08/17/17)

The 2nd generation of thistle caterpillars are causing feeding injury on soybean leaves (defoliation), mostly low or non-economic populations.

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Spider Mites in Soybeans in NC ND (08/17/17)

Spider mites are starting to be found in some soybean fields, mainly field edges, in north central ND.

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Northwest ND (08/17/17)

Information from the Northwest region of North Dakota.

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Southwest ND (8/17/17)

Information from the Southwest region of North Dakota.

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South Central/East ND (08/17/17)

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

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Northeast ND (8/17/17)

Information from the Northeast region of North Dakota.

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A Unique way for Palmer Amaranth to Invade (08/17/17)

Many of you know palmer amaranth arrived as a seed contaminant in pollinator mixes in Minnesota in 2016. There might be a new twist on introduction.

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Reporting Dicamba Injury (08/17/17)

In an effort to document the extent of off-site drift of dicamba in ND we ask you to complete the form prepared by the ND DOA (News release and link below).

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Soil Sampling Behind the Combine (08/17/17)

Early crops are starting to be harvested and soil sampling may begin at any time. Years ago, NDSU published a ‘sampling date adjustment’, meant to allow for additional nitrate to develop later in the fall should a sampler decide to collect soil before mid-September.

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