Crop & Pest Report


Crop & Pest Report


Interesting Red Mite (06/22/17)

Are you are seeing bright red spots moving around on top of the soil?

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South Central ND (6/22/17)

Information from the South Central region of North Dakota.

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Northeast ND (06/22/17)

Information from the Northeast region of North Dakota.

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You Can Take the Birch out of the Forest But… (06/22/17)

Birch trees are found in cool northern forests where the soil is slightly acidic.

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Why No AMS is Allowed with Dicamba in Dt Soybean (06/22/17)

Question: The chemical companies have told us that AMS is not allowed with dicamba on DT soybean. They say AMS will increase the volatility and may result in dicamba drift to susceptible plants and crops. They tell us what not to do but they don’t tell us why AMS increases volatility. What does AMS do?

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How Clethodim to Injure Corn? (06/22/17)

Question: A grower sprayed glyphosate plus clethodim (select) on his soybean to kill weeds and volunteer corn. The grower did not clean the tank after the last load and filled the next tank with just glyphosate to spray his RR corn. The results looked like the photo to the right. Can there be enough clethodim in the spray system from the previous load to cause this injury?

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Glufosinate Not Control Lambsqurters (06/22/17)

Question: I sprayed generic Liberty “Interline” at 1pm in the afternoon on a field of soybeans. It controlled all weeds except lambsquarters. There is no control of this weed and my neighbors also had no control. I used 32 fl oz/A of Interline, 20 GPA water, 3 lbs AMS/A, and droplet size at 286 microns. The conditions were perfect for good control last week. Why didn’t the generic Liberty kill the lambsquarters? I will need to respray all my fields again. How do we achieve control? Has anyone looked at different additives with Liberty?

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Revised Liberty Label (06/22/17)

The new Liberty label has been approved with revised application information.

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Hay CRP Sprayed With Milestone (06/22/17)

Question: I have a producer that wants to spray CRP with Milestone.

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Protein Enhancement Recipe (06/22/17)

Flag leaves are emerged in many early seeded spring wheat fields, so one of the upcoming questions many of you will receive will concern strategies for protein enhancement.

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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

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

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Twisted Whorls in Corn (06/22/17)

About this time last year, I wrote about twisted whorls in corn.

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Southwest ND (06/22/17)

Information from the Southwest region of North Dakota.

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North Central ND (06/22/17)

Information from the North Central region of North Dakota.

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Options Limited for Rescue Treatments for IDC in Soybeans (06/22/17)

Reports of iron deficiency chlorosis (IDC) of soybeans are coming in. The unifoliate leaves of soybeans are usually green, being fed by iron reserves in the seed, but as the trifoliolate leaves appear, chlorosis often develops when soybeans are grown on alkaline, poorly-drained soils. Iron is very immobile in the plant, so the deficiency appears first on the youngest leaves.

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Nodules on Soybean Roots (06/22/17)

Soybean plants have the ability to form a symbiotic relationship with nitrogen-fixing Rhizobia bacteria, which cause the small swellings on the root system called nodules.

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New Field Pea Insect Pest in SW ND (06/22/17)

Pea leaf weevil (Sitona lineata L.) was found in Golden Valley and Stark Counties last week during a field trip to determine if this insect is established in field peas grown in North Dakota.

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