Articles tagged under: Andrew Thostenson
Voluntary Cancelation for Chlorpyrifos Registrations
Published December 15, 2022
Companies are voluntarily canceling their chlorpyrifos registrations with the EPA. North Dakota State University Extension Pesticide Program Manager Andrew Thostenson says the food tolerances were revoked in February and this may be the end for this tool. "Corteva exited the market…What the OIG Report Means for Farmers Planning to Use Dicamba
Published May 26, 2021
The Office of Inspector General says EPA intentionally mishandled the 2018 approval of three dicamba herbicides. NDSU Extension Pesticide Program Specialist Andrew Thostenson has never seen a report like this on pesticide registration. "I'm a bit taken back. I knew…Paraquat Makes a Comeback for Managing Weeds
Published July 27, 2020
In the age of resistant weeds, paraquat in making a comeback. "It's always been a very good chemical as a harvest aid to help pulse crops," said Andrew Thostenson, pesticide program specialist, NDSU Extension. "The other thing is we have…Pesticide Program Specialist Responds to Dicamba Ruling
Published June 4, 2020
The Environmental Protection Agency is expected to appeal a recent court ruling on the use of dicamba herbicide. "Once the appeal is in place, it is likely the EPA and registrants will start marshaling their arguments and taking it to…States Still Evaluating Next Steps for Dicamba
Published November 2, 2018
At the state level, NDSU Extension will work with the North Dakota Department of Agriculture to help determine next steps in the dicamba discussion. NDSU Extension Pesticide Program Specialist Andrew Thostenson explains last year, the North Dakota Department of Agriculture…The Path Forward for Dicamba
Published August 17, 2018
NDSU Extension Pesticide Program Specialist Andrew Thostenson says the Environmental Protection Agency is considering ways to manage drift as part of any future dicamba strategy. Thostenson says something needs to change. "Once EPA makes a decision, we're (North Dakota) going to…Drift’s Impact on Yield Matters
Published July 5, 2018
NDSU Extension Pesticide Program Specialist Andrew Thostenson says the yield impact of dicamba drift does matter. "Let's imagine you had 70 bushel (per acre) soybeans and that's a very very good crop. You got some dicamba exposure and you're saying…Be Aware of Inversions
Published June 20, 2018
NDSU Extension Pesticide Program Specialist Andrew Thostenson reminds applicators to be aware of temperature inversions when spraying, especially if applicators use dicamba. Thostenson says within one hour of sunset, farmers should be shutting down the spray operation regardless of wind…