NDSU Extension - Grand Forks County


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Volume 33, Issue 07 | July 23rd, 2020


Download the pdf: Volume 33, Issue 07 | July 23rd, 2020



This year has had it’s weed control challenges between wind, moisture, resistance, continuous flushes of seedlings, etc. Unfortunately, every weed that goes to seed adds to your weed seed bank, having the opportunity to haunt you for years to come. Begin planning soon on what management techniques you will use this fall and next year to manage weed escapes. Hand pulling is unpopular, but could be beneficial in some situations. Inventory your mature weeds, map out problem areas and plan now for their future appearance.


Pre-harvest weed control in small grains re-visited is quick-read article worth checking out from UMN Extension if you are dealing with glyphosate weed resistance in small grains. Tank mixing glyphosate will need to be considered for desiccating weed escapes. 2,4-D with glyphosate is a common tank mix. An amine formulation may safer for drift reduction this time of year. A product potato growers may be familiar with is, Weedar64, which is also labeled for wheat pre-harvest applications. Other options are also listed in the article linked. Always follow the label, and assess conditions prior to application.

Paraquat, an Older Herbicide, Making a Comeback in the Age of Resistant Weeds.  Paraquat, or Gramoxone is used commonly on prevented plant acres and as a harvest aid in some legume crops. It can be very effective when used correctly, but requires adequate training and caution when handling. Read the recent Crop and Pest Report article for more tips on use and caution statement. Gramoxone is not labeled for use in small grains and cannot be used for pre-harvest application.

WEED HIGHLIGHT– Narrowleaf Hawksbeard (NLHB)

NLHB  is a weed that can be easily overlooked or misidentified as a dandelion, prickly lettuce, or sowthistle at quick glance. What’s the big deal? There are no control option for NLHB in pulse crop. While it is a known pest in Montana and Western North Dakota, it has made some appearances on the Eastern side, and has been found in Grand Forks County. NLHB is a winter annual, emerging in early fall through October, but can also germinate in the spring. Under ideal conditions, one plant can produce 50,000 seeds. Helpful Links:



About 60 live weeds are on display in various stages of development.

The first step in weed management is plant identification.

“The North Dakota State University Carrington Research Extension Center has a weed  arboretum to assist with this first step,” says Greg Endres, NDSU Extension cropping systems specialist at the center.

About 60 live weeds are on display in various stages of development. The weeds are grouped by biology, including annual broadleaves and grasses, winter annuals, biennials and perennials. Also, the majority of North Dakota’s noxious weeds are in the display.

“This resource is intended for farmers, crop advisers and people managing weeds in yards and gardens,” Endres says.

It is south of the center’s main office building. Individuals can visit the site anytime. Also, tours can be arranged for individuals or groups who would like details on weed identification, biology and control.

For more information, contact the center at 701-652-2951 or by email at gregory.endres@ndsu.edu.


Review of Dry Edible Bean Rust (07/23/2020)- Crop and Pest Report Article highlighting conditions favorable for rust and how to scout. Frequent dews, and moderate to warm temperatures provide favorable environments for the disease.  I will be looking for growers who are willing to have their fields scouted by NDSU research technician and will be making some calls over the next week.  If you are willing to participate, shoot me an email at katelyn.hain@ndsu.edu with your contact information/field locations or call the office at 701-780-8229.

I’ve continued to find apothecia under sunflower and crop residues.  Conditions remain very favorable for white mold development. Learn about White Mold Development in Beans.


Have you filled out your Census Data yet?

Help the government work for your communities and be counted! It’s quick and simple. Visit: WWW.2020CENSUS.GOV 



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