Agronomy News and Tips


New Training Requirements for Soybean Herbicides Containing Dicamba

The EPA approved new herbicide labeling as of October of 2017  and has major changes. Please study the labels on the Missouri Department of Ag website for the Federal label and 24c label, which is Missouri specific.

Growers and certified applicators who will be applying the product will be required to have a private pesticide applicator license. Each person applying the product will be required to have the license rather than working under a growers license.

Also, private applicator licenses from other states than Missouri are not acceptable. The private pesticide applicator license must be a Missouri license.

Secondly, auxin herbicide training which is the new training requirements including dicamba are required. This training can be accessed on-line through the Missouri Department of Ag website or the University of Missouri Extension website and searching for “Synthetic Auxin Herbicide Applicator Training Program”

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

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:

Pastures Short with Cool Dry Spring

The cool dry spring has reduced the height and tonnage of our cool season grasses. Growers who fertilized grasses are not obtaining their yields because of environmental conditions. Grasses are stemmy with a reduced amount of leaves which in turn, reduces the quality of the forage.

Growers should plan to supplement cool season grass pastures with summer annuals or by other means. Wayne Flanary, Extension Agronomist, indicates, “Planting summer annuals should be planted before moisture becomes too short and plants cannot germinate because planted into dry soils.” Growers should plan ahead with options now. Also, Flanary suggests a long-term plan to add alfalfa to the forage base as alfalfa is very drought tolerant and can produce high quality feed.

Also, growers should manage tall fescue seed heads by clipping them. Reports in south Missouri indicate cattle are grazing grass so short, they are grazing seed heads which contain alkaloids which are toxic. In addition, clipping is a strategy to keep plants in a vegetative stage. If rain is received, the fescue will respond by adding leaves which can add valuable forage.

Reports of armyworm have been reported in Andrew County in cool season grass pastures. Please scout fields and watch for larvae as they can strip fields of leaves quickly.

For more information, contact Wayne Flanary, Regional Agronomist with the University of Missouri Extension Service at 660-446-3724.