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Palmer Amaranth Found in 3 New Counties (09/10/20)

Pigweed ID pictures have been rolling in since the last Crop and Pest Report.

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Palmer Amaranth Update (08/27/20)

Palmer amaranth was found at a new site in Benson county late last week. Palmer was first detected at a different site in Benson county in 2018.

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Use Care When Applying Pre-Harvest Herbicides (08/06/20)

With harvest season approaching, farmers should carefully review pre-harvest herbicide applications to ensure compliance with pesticide label directions.

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Barnyardgrass in Agricultural Fields (08/06/20)

Is it me or is there more barnyardgrass in wheat and soybean fields in 2020 than other years? Of course, you have observed barnyardgrass on the side of roads, in ditches, wetlands, and even in lawns.

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Waterhemlock Reported in Cass County (07/30/20)

A suspicious weed in the parsley family was reported to the Cass County Extension office within the last two weeks.

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Waterhemp in Roadside Ditches (07/30/20)

In my travels across southeast North Dakota the past two weeks, I have observed an abundant amount of waterhemp in our roadside ditches.

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Paraquat, an Older Herbicide, Making a Comeback in the Age of Resistant Weeds (07/23/20)

In the 1960’s, paraquat was registered as a broad-spectrum, non-residual, contact herbicide.

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Continue to Actively Manage Drowned-Out Areas of Fields for Weeds (07/16/20)

I traveled north from Fargo through Cass, Traill, Grand Forks and Walsh counties in North Dakota to inspect a sugarbeet field near Hamliton in Pembina County and returned to Fargo via Kittson, and Marshall counties to take notes in sugarbeet experiments near Crookston, MN in Polk county.

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Tank Cleanout Procedures (06/18/20)

June is the month when crops and weeds are actively growing. For private and commercial applicators, the month of June involves controlling weeds in multiple crops, often at the same time.

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Drifting in the Wind (06/18/20)

Each year applicators are placed in a near impossible task of meeting the expectations of the pesticide label and being able to control pests in a timely way.

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Growth Stage Cutoffs for Herbicide Applications in Corn (06/18/20)

The recent warm weather has led to rapid growth and development of many of our crops, including corn.

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Tank-Mixes with Enlist One (06/18/20)

Postemergence herbicide applications are currently underway or about to be applied on many of our soybean acres.

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Dicamba: Considerations for Dicamba Alternatives (06/11/20)

Last week, we submitted a supplemental article to Crop and Pest Report that outlines some of the best alternative herbicide options for difficult-to-control weeds in the case where dicamba cannot be applied to Xtend soybeans. We have received further clarification on the ability to use approved dicamba products, but there may still be the need for alternative products on some of these acres. There are a few points I would like to address in more detail for these products.

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Dicamba: Inter-row Cultivation

Dr. Richard Zollinger’s presentations often featured SOA 31. His message was properly timed inter-row cultivation was effective for controlling weeds and weeds do not develop resistance to cold hard steel.

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Dicamba: Time Proven Solutions for Weed Control in Row Crops including Soybean (06/11/20)

The chloroacetamide herbicides (SOA 15) were discovered and commercialized in the 1960s for grass and broadleaf weed control in many crops including soybean.

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Dicamba: Recent Legal Rulings on Dicamba Formulations Designed for Over the Top Applications to Tolerant Soybeans (06/11/20)

On June 3, the U.S. 9th Circuit Court ruled that EPA had not carried out their statutory responsibility with respect to the issuance of three dicamba registrations: Engenia, FeXapan, and Xtendimax. As a consequence, the court vacated their registrations.

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Plan B on Postemergence Weed Control in Xtend Soybean (06/04/20)

We have received many questions about what to spray for postemergence weed control on Xtend soybean acres in light of the 9th Circuit Court’s decision on June 3rd to immediately vacate the labels for Xtendimax, Engenia, and FeXapan.

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Spraying when it’s Breezy (6/04/20)

The extension specialists meet weekly during the growing season to discuss timely pest management and agronomic topics.

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Postemergence Herbicide Treatments in Sugarbeet (05/21/20)

Plant 2020 will be a dichotomy of growth stages depending on region of the sugarbeet producing area.

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Glyphosate Commercial Brands are Formulation, Surfactant Loading and Salt Specific (05/21/20)

Glyphosate Commercial Brands are Formulation, Surfactant Loading and Salt Specific You may have heard the mantra from Extension, use full glyphosate rates that will kill weeds. But what is the correct rate?

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