(Michelle Mielke) – The North Dakota Department of Agriculture
(NDDA) has developed 2018 North Dakota-specific protocols for in-crop
use of Dicamba on soybeans. The affected formulations are XtendiMax
by Monsanto; Engenia by BASF; and FeXapan by DuPont. (correction - the NDDA sent a correction to the original announcement, noting the word "applicators" in the second quote should have been "farmers".
October, the Environmental Protection Agency (EPA) released their new
label language classifying the new formulations as restricted-use
products. The federal label also prohibits the use of any tank mix
partners that are not stated on the label. The EPA’s new
requirements are intended to mitigate the chance of any off-target
movement of these chemicals in the next growing season.
applaud the work done by the EPA and the registrants to develop the
new label, but believe that a one-size-fits-all approach does not
adequately address some of the unique conditions we face in our
state,” Agriculture Commissioner Doug Goehring said. “To address
this, we developed additional use restrictions for these products to
minimize off-target movement of product.”
North Dakota-specific use protocols on the Dicamba formulations of
XtendiMax, Engenia, and FeXapan are as follows and are in addition to
the federal requirements:
applications may be made after June 30 or after the first bloom (R1
growth phase), whichever comes first.
applications may be made if air temperature of the field at the time
of application is over 85 degrees Fahrenheit or if the forecasted
National Weather Service high temperature for the day exceeds 85
Dakota has a unique climate that is different than other
soybean-producing states. The application season typically has
low humidity. The dry and less humid environment can significantly
increase product evaporation and potential off-target movement.
of the product may only be made from one hour after sunrise to one
hour before sunset.
must maintain a speed of 12 miles per hour or less when applying
applications may be made unless prior notification is given to NDDA.
The notification shall include the basic applicator contact
information, certification type (commercial, public or private),
date, time and location of the application.
applicator working under the supervision of a certified private
applicator will also be required to complete the Dicamba-specific
training course before being allowed to apply the product.
must be made with a minimum of 15 gallons of spray solution per acre.
applications may be made using 80-degree or less spray nozzles.
a best management practice, farmers should strongly consider
utilizing pre-emergence weed management strategies,” Goehring said.
“Relying solely on post-emergence applications of Dicamba or any
herbicide for weed control should be avoided.” - (corrected from the word "applicators" in first version from NDDA)
new labels and registration process may still take several weeks to
complete. The products will not be available for purchase until the
registration process is complete.
new protocols will only affect applications made on soybeans for
XtendiMax, Engenia, and FeXapan.
restrictions will not affect generic Dicamba.