Agronomy News and Tips


The Missouri Department of Agriculture has temporarily issued a Stop Sale, Use or Removal Order on all Dicamba products in Missouri. News Release and more information.

MU To Offer Dicamba Training

COLUMBIA, Mo. – Dicamba application has presented challenges for Missouri agriculture, and the University of Missouri recognizes the importance of preparing our communities for managing this and similar technologies in the future.

Beginning in December 2017, the MU College of Agriculture, Food and Natural Resources, and MU Extension, in cooperation with the Missouri Department of Agriculture, will offer web-based and in-person training for those wishing to use or purchase dicamba in 2018. More information will be available at

On Oct. 13 the Environmental Protection Agency announced an agreement with Monsanto, BASF and DuPont on measures to minimize the potential for off-target movement of dicamba and further ensure effective use of three pesticides: DuPont’s FeXapan, BASF’s Engenia and Monsanto’s XtendiMax. The Missouri Department of Agriculture is reviewing these requirements as preparations are made for the 2018 growing season. The department is also working with MU and other researchers to strengthen education and training specific to dicamba and other auxin herbicides.

The full news release from the EPA is available at

More information about dicamba is available at Agriculture.Mo.Gov/dicamba.

Agronomy Newsletter

MU Variety Testing Program

The Missouri Crop Performance corn and soybean test results are available at your local extension office for free. When using the data, look at the sites across northern Missouri which represent different yield environments. Different yield environments provide an opportunity to see how a hybrid or variety will perform with different weather risks. Stop by your local extension office and pick up your free copy. For more information, contact MU Extension regional agronomist, Wayne Flanary at 660-446-3724.

Crop performance results are also available online from the MU Variety Testing Program.

Agronomy Technical Bulletin

MU Extension Agronomist Wayne Flanary discusses how to estimate crop yields prior to harvest:

Avoid Harvesting Alfalfa in the Fall Season

Growers should avoid harvesting alfalfa from September 15 on, until plants become dormant from colder weather. By doing so, this allows carbohydrates to build up in roots for winter survival. This allows the plants to survive the winter and remain healthy for spring growth.

Several area fields we have been watching where growers have cut without this preparation for winter survival have thinned considerably. Alfalfa stands were visibly affected and yields were reduced the following year. 

If you need to harvest, wait until late October when stands become dormant or beyond a killing frost to that of 28 degrees Fahrenheit for several hours so alfalfa is frosted. Alfalfa will handle a normal frost and continue to growth compared to corn or soybeans, so this is why we recommend a colder temperature frost.

Proper cutting and leaving the regrowth, will help alfalfa protect the crown from winter injury. Also,  the stubble will trap snow and will create insulation.

For more information, contact Wayne Flanary at 660-446-3724 or Andy Luke at 660-425-6434, Regional Agronomists, University of Missouri Extension.