Crop & Pest Report

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Crop & Pest Report

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Southwest ND (06/30/16)

Information from the Southwest region of North Dakota.

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South Central ND (06/30/16)

Information from the South Central region of North Dakota.

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Northwest ND (06/30/16)

Information from the Northwest region of North Dakota.

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North Central ND (06/30/16)

Information from the North Central region of North Dakota.

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Questionable Herbicide Contents (06/30/16)

Question: I have a container of herbicide and am unsure of the contents or if the herbicide is the same as indicated on the container. Is there a place I can get it tested to make sure I know what the herbicide is?

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Vigilent Watch for Palmer Amaranth (06/30/16)

To date, Palmer amaranth has not been documented in North Dakota. We want to keep it that way.

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Purple Corn, Phosphorus, and Fallow Syndrome (06/30/16)

Some plant leaf symptoms, such as potassium deficiency nearly always showing leaf necrosis at leaf edges, are decent beginning diagnostic indicators. However, purple corn is not.

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Bacterial Diseases 101 (06/30/16)

The reports of high winds, hail and rain throughout the last two weeks has contributed to the frequent reporting of bacterial diseases.

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Fusarium Head Blight (Scab) Risk for Small Grains (06/30/16)

A significant portion of the small grains in the southern half of North Dakota are entering stages of kernel development.

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Bacterial blights on dry beans appearing (06/30/16)

Bacterial blights are already appearing in dry edible beans. The amount of damage that we are observing this early is rare and is cause for concern.

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Questions When Managing Cercospora Leaf Spot of Sugarbeet (06/30/16)

As we get closer to the time when growers will start fungicide applications for control of Cercospora leaf spot, growers usually have some questions they will like answered to help in their farm decision making processes.

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Scout for Lygus Bugs in Pulse Crops (06/30/16)

Tarnished plant bug, Lygus lineolaris, is one of the more common species of Lygus bugs and is known to feed on over 385 crops and weed plants.

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Leafy Spurge Flea Beetles - DD Update (06/30/16)

Accumulated growing degree days (AGDD) from NDAWN (sunflower degree days/growth stage application) indicated that we are at optimal time to collected flea beetles between 1,200 and 1,600 AGDD.

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Wheat Midge Degree Days Update (06/30/16)

The current degree day map indicates that 10-50% of wheat midge females are emerging.

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Time to Scout for Soybean Aphids (06/30/16)

Over 100 soybean fields were surveyed by the IPM Survey scouts last two weeks in ND and MN (Source: P. Glogoza for MN).

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Yellow Plants and Twisted Whorls in Corn (06/30/16)

There have been reports from many regions of the state of random corn plants that have newly emerged leaves that are bright yellow (see accompanying photos).

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Early Planted Soybean Starts to Flower (06/30/16)

With the relative early soybean planting this year, and higher than normal temperatures, the soybean plants are transitioning from the vegetative to the reproductive stage.

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Ground Nesting Bees (06/30/16)

Extension Entomology has received several calls about bees nesting in the ground.

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Wheat Midge Degree Days for Scouting (06/23/16)

A degree-day model is a good predictor of wheat midge emergence for timing field scouting.

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Scout for Pea Aphids in Pulse Crops (06/23/16)

Low numbers of pea aphids, only 1 per sweep, are being found in field peas in Mountrail, Divide and Williams counties, and in lentils in Williams and McKenzie counties

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