Crop & Pest Report




Horsetail (Equisetum) Control (06/09/16)

Two Questions on Horsetail are discussed.

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Post Grass Antagonism from Basagran (06/09/16)

Question: I have several dry pea fields that have weed skips. The main weeds are volunteer wheat and 2 to 4 leaf wild buckwheat.

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Olympus Preplant to Durum (06/09/16)

Page 102 (crop rotation section) of the 2016 ND Weed Control Guide shows the rotation for Olympus to Durum at 0 months. This interval is incorrect.

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Scout for Waterhemp in Sugarbeet (06/02/16)

Most areas in the sugarbeet growing region received precipitation last week.

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ND SLN Labels Renewed (06/02/16)

Dow petitioned the ND Department of Ag to renew two SLN labels for the product Sonalan 10G.

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Waterpod (06/02/16)

Each year it seems a different weed becomes the mystery weed to identify.

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Group 2 Herbicide Resistance – ND Update (06/02/16)

Another herbicide resistance issue was identified in 2015.

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Sprayer Cleanout – Avoiding Crop Injury due to Contamination (05/26/16)

Growers may use the same spray equipment to apply selective herbicides in multiple crops in the spring or summer. Crop injury due to contamination is a preventable problem if the appropriate precautions are used in advance to clean spray equipment. How does it happen?

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SU Canola (05/26/16)

Question: I have a few clients growing SU resistant canola. I have been told they need to use Draft herbicide. In the herbicide compendium in the weed guide it says it is composed of rimsulfuron and thifensulfuron. Is this correct? I was told it contained Harmony and Express?

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Effect of MSO and AMS on Group 14 Herbicides (05/26/16)

Glyphosate-resistant kochia has been identified in several locations across North Dakota. This raises the question as to how emerged kochia will be controlled without glyphosate.

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Waterhemp has Emerged in the Southern Red River Valley (05/19/16)

I received two images yesterday, one from near Sabin, MN and a second near Walcott, ND, confirming waterhemp has emerged in eastern North Dakota and Minnesota.

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How Long Soil-Applied Herbicides can Lay on the Surface before Precipitation? (05/19/16)

Two questions are on farmers minds. First, how long will soil-applied herbicides ‘last’ on the soil surface if it doesn’t rain and second, should a farmer consider using a rotary hoe or drag harrow to incorporate herbicides?

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Minimum Time Between Herbicide Application and Tillage (05/19/16)

Question: I am aware that the time interval between when glyphosate is applied until the ground is tilled is (ideally) 5 days.

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Weed ID (05/19/16)

Question: It doesn’t seem to be dandelion or thistle. We are seeing more of this year, especially in the sand and clay soils. This plant would make a great cover crop plant if we can kill it. Holds the soil and has a 3 foot tap root! What is it?

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Downy Brome Control (05/19/16)

Question: Does Rimfire Max mixed with Express work better on downy brome than when using Rimfire Max alone?

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Correct Acuron Rotation Restrictions (05/19/16)

Rotation restriction to dry beans after Acuron is 18 months not 10 months as indicated in the ND Weed Control Guide.

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Correct Perfectmatch Rotation Restrictions (05/19/16)

Please note the following corrections for PerfectMatch in Table Y15, Crop Rotation Restrictions for North Dakota, Page 102 of the NDSU Weed Control Guide:

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Weed Control Guide Updates (05/12/16)

We have received many inquiries about a change in the 2016 ND Weed Control Guide on page 6 showing a 0 day plant back restriction to wheat following a 2,4-D application.

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How do you know what the Wind Speed is? (05/12/16)

The speed of the wind is that moment in time when YOU measure it with a reasonably accurate anemometer and record it. Further, that speed is only relevant for the location and that moment in time where YOU measure it.

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