Home » Tag Archives: dicamba

dicamba

A Plant Protection Priority

spraying dicamba

The National Cotton Council worked closely with EPA and agribusiness allies to ensure dicamba’s continued availability. What was the threat to dicamba? ■ After the U.S. Court of Appeals for the Ninth Circuit vacated the 2018 registration of Xtendimax, FeXapan and Engenia dicamba herbicides under the Federal Insecticide, Fungicide and Rodenticide Act in June, the NCC immediately sent a letter ... Read More »

Stewardship grows more important with dicamba-resistant pigweed

dicamba resistant pigweed

• By Larry Steckel • Has Palmer amaranth evolved dicamba resistance in Tennessee? Results from some of the greenhouse experiments this winter and spring as well as in field research this growing season would suggest that our state now has dicamba-resistant (DR) Palmer amaranth. These DR populations are established in Crockett, Gibson, Madison, Shelby and Warren counties and likely several ... Read More »

Recent pigweed escapes are troubling

pigweed sprayed with liberty

• By Tom Barber • Over the last couple weeks I have had several conversations with consultants and growers about pigweed control. Many are concerned with the levels of postemergence control they are seeing in all technologies but especially with glufosinate or Liberty. I have received several pictures of pigweed escapes following two or three Liberty applications in Northeast Arkansas. ... Read More »

Registrants ask for rehearing of Ninth Circuit’s June 3 dicamba decision

UPDATED — BASF, Bayer and Corteva Agriscience filed separate petitions July 20 with the U.S. Court of Appeals for the Ninth Circuit requesting a rehearing of its June 3 decision. The court’s ruling vacated Environmental Protection Agency registrations for three dicamba-based herbicides without giving two registrants an opportunity to be heard. The three dicamba products affected are Engenia from BASF, ... Read More »

Junglerice control after initial glyphosate + dicamba application

junglerice control

• By Clay Perkins • Questions continue to be asked on how to best manage junglerice, barnyardgrass and goosegrass in cotton and soybean. Research earlier this spring looking at grass control after an initial glyphosate + dicamba application showed that if a follow-up glyphosate application was applied seven days later better than 90% junglerice control could be achieve (data below). ... Read More »

Extension hears concerns about poor Palmer amaranth control with dicamba

palmer pigweed

• By Larry Steckel and Clay Perkins • Calls continue to come in on concerns about poor Palmer amaranth control after a dicamba application. More than a few have reported that Palmer amaranth has survived multiple dicamba + glyphosate applications (Example right). In visiting with farmers, consultants and retailers it is interesting to note that some are seeing relatively good ... Read More »

Ninth Court upholds EPA’s dicamba use-of-stocks decision

epa logo

UPDATED — The U.S. Court of Appeals for the Ninth District has backed the Environmental Protection Agency’s decision to allow continued use of three dicamba products until July 31. In rejecting an emergency motion brought by environmental groups, the court also will not find EPA Administrator Andrew Wheeler in contempt of court. In addition, the court granted motions by CropLife ... Read More »