Crop & Pest Report

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Plant Pathology

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Disease Risk in Hail Damaged Corn (07/20/17)

Several corn fields in the last two weeks have experienced significant hail damage. With this added injury, questions have been asked on disease risk in corn.

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Expectations of Fungicides Applied to Wheat at Flowering under Dry Conditions (07/13/17)

Severe Fusarium head blight problems over the past couple growing seasons have plagued durum and spring wheat growers in northcentral and northwestern North Dakota.

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NDSU Canola Doctor App (07/13/17)

The NDSU Canola Doctor App (Figure 1) delivers critical information on diseases and pests, including alerts, the Sclerotinia risk map and risk calculator, images and management tools to optimize canola production in North Dakota.

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Managing Bacterial Blight in Dry Beans (07/13/17)

Recent thunderstorms in Northeast ND and Northwest MN have created a favorable environment for bacterial blight in dry beans.

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White Mold Review (07/13/17)

While much of the state is experiencing a drought, some locations in the North have had adequate water where white mold may be a concern in broadleaf crops.

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Questions when Managing Cercospora Leaf Spot (CLS) of Sugarbeet (07/06/17)

Can I mix different fungicides? Can adjuvants/stickers help improve efficacy of fungicides? When should I start fungicide application? How much water should I use and at what and pressure? At what temperature does Cercospora become less damaging?

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Fusarium Head Blight (Scab) Risk (07/06/17)

A moderate scab risk exists for areas along the northern half of the Red River Valley

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Scout Sugarbeet Fields to Check for Presence of Fusarium Yellows and Fusarium decline (6/29/17)

Fusarium yellows/Fusarium decline were first observed in May at the NDSU research site in Moorhead, MN.

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Fungicide Efficacy and Timing Questions on Fusarium Head Blight (Scab) (6/29/17)

Small grains in western ND have headed with most of the crop past the flowering growth stages.

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Fusarium Head Blight (FHB) Risk (06/22/17)

Fields in southwestern ND are heading or near flowering, but due to the dry conditions, scab risk is very low for this area of the state.

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Wheat Leaf Disease Update (06/22/17)

The IPM scouts visited 93 wheat fields last week and the most common disease detected was tan spot (observed in 23% of the wheat fields).

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Managing Cercospora Leaf Spot of SugarbeetManaging Cercospora Leaf Spot of Sugarbeet (06/22/17)

Cercospora leaf spot (CLS) is the most damaging leaf disease of sugarbeet in North Dakota and Minnesota.

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Fusarium Head Blight Risk (06/15/17)

Winter wheat is flowering or near flowering and some spring wheat fields are starting to head.

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IPM Survey – Wheat Disease Update (06/15/17)

The IPM scouts visited 127 wheat fields and 18 barley fields. Spring wheat growth stages varied from tillering stages to heading.

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Sclerotinia Risk Map and Risk Calculator will begin June 18th (06/15/17)

The first Sclerotinia risk map for the 2017 season will be available on June 18th.

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Fusarium Head Blight (Scab) Risk (06/08/17)

A few winter wheat fields have headed in the state and will be approaching flowering soon.

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IPM Survey – Wheat Disease Update (06/08/17)

The IPM scouts visited 153 wheat fields in North Dakota over the past two weeks. Tan spot was observed in 13.1% of the scouted fields

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Stripe Rust in North Dakota (06/01/17)

The first report of stripe rust for the 2017 growing season was found in winter wheat located in Dunn County (found by Ed Cuskelly – Helena Chemical Company).

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Wheat Streak Mosaic Update and Other Causes of Yellow Wheat (05/25/17)

Extension specialists in Kansas, Nebraska and South Dakota have reported a widespread occurrence of wheat streak mosaic (WSM) in winter wheat fields.

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Timely Detection of Blackleg of Canola is Key to Managing this Disease with Fungicides (05/25/17)

The Blackleg fungus is capable of causing yield loss in canola, so an early season fungicide application might be considered for fields at high risk for the disease.

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