University of Minnesota Extension
Menu Menu

Extension > Minnesota Crop News

Monday, June 18, 2018

As June transitions into July what soybean weed management options are still available?

Jeffrey L. Gunsolus Extension Agronomist-Weed Science

waterhemp in soybean field
Waterhemp in soybeans. Photo: Liz Stahl
The combination of a long duration of wet weather and advanced growing degree days has created serious weed management challenges for many corn and soybean growers. Due to the impending June 20th cutoff date for approved dicamba formulations on Xtend soybean and weeds moving into their rapid growth phase, most of the questions I am receiving, and I hope to address, are focused on soybean.

Friday, June 15, 2018

Are Inversions Really That Common?

by Andrew Thostenson, Pesticide Program Specialist, North Dakota State University Extension Service; Jared Goplen, David Nicolai and Ryan Miller, University of Minnesota Extension Educators - Crops

Pesticide applicators have long been obliged and directed by pesticide labeling to understand, identify, and NOT apply during air temperature inversions. This has become acutely important because of the off-target movement of dicamba over the last couple of years. But a similar statement is also found on many other pesticide labels. 

EPA and pesticide manufacturers have made it abundantly clear they do not want pesticides applied during an inversion. But that is easier said than done. Until recently, very few people actually monitored inversions. That is fast changing. North Dakota and NW Minnesota via NDAWN now have 31 stations monitoring this in real time with alerts being posted to smart phones. Missouri has 11 stations. Pesticide manufacturers have also spent a fortune on predictive modeling and distribution of their estimates via mobile apps. Finally, hand held sensors developed by Innoquest are also widely available. Now that we can measure and monitor for inversions, an applicator has to assess this information and make a decision to spray or NOT spray. That is the hard part. 

Winter Camelina Field Day to be held June 27 in Waseca

The University of Minnesota Forever Green Initiative and the Agricultural Utilization Research Institute (AURI) invite processors, food entrepreneurs, culinary professionals, farmers, and the curious public to an open house event at the Southern Research and Outreach Center 35838 120th Street Waseca, MN. Throughout the event, scheduled for June 27, 2018, attendees will learn about winter camelina, an exciting new oilseed crop currently in the research and development phase, which has the potential to transform food, fuel and feed in Minnesota.

Register today for the July 2018 Field School for Ag Professionals

By Dave Nicolai, IAP Program Coordinator

The 2018 Field School for Ag Professionals will be held on July 25 - 26 at the University of Minnesota Agriculture Experiment Station on the St.Paul campus at the University of Minnesota. The Field School for Ag Professional is a summer training opportunity that combines hands-on training and real world field scenarios. The two-day program focuses on core principles in agronomy, entomology, weed and soil sciences on the first day to build a foundation for participants; and builds on this foundation with timely, cutting-edge topics on the second day.

Thursday, June 14, 2018

Small Grain Summer Plot Tours

by Jared Goplen, Extension educator and Jochum Wiersma, Extension small grains specialist
People in wheat field

University of Minnesota Extension is offering four Small Grain Summer Plot Tours across MN in June and July to address small grain production issues, variety performance, and insect and disease pests.

These programs are designed to provide farmers and crop consultants the tools needed to make small grains successful and profitable. This includes information on production agronomics, variety selection, disease identification, fungicide use, fertility, and economics. These programs are interactive and discussion based, featuring a tour of current research plots and discussion of on-farm experiences.

Wednesday, June 13, 2018

Corn and soybean weed management tour scheduled for July 3

Lisa Behnken and Ryan Miller, Extension educators
People on field tour

Weed management has changed dramatically in recent years with herbicide resistant weeds, new herbicide technologies and challenging weather conditions. How do we develop resilient strategies to deal with all of the different challenges? The 2018 Corn and Soybean Weed Management Tour will highlight ongoing research that addresses these challenges and introduces new ideas for crop producers and Ag Professionals on Tuesday, July 3.

Cutoffs for postemergence herbicide applications in corn and soybean

By Liz Stahl and Dave Nicolai, Extension Educators - Crops

A late start to the planting season, combined with warm temperatures and an abundance of moisture in areas of the state has led to quick crop emergence, and crops that are rapidly advancing through the growth stages. Crops may also be in a range of growth stages due to varying planting dates that resulted from working around a wet planting season. Almost all herbicide labels have a maximum growth stage and/or crop height after which applications should not be made. Application restrictions exist to help prevent potential crop injury, herbicide carryover, environmental or food safety concerns, or other potential issues.
  • © Regents of the University of Minnesota. All rights reserved.
  • The University of Minnesota is an equal opportunity educator and employer. Privacy