From IPM in the South by Rosemary Hallberg
Both scientists and regulators have had a lot to say about the growing problem of herbicide resistance and how weed management techniques need to change in response. However, there have been few organized opportunities for farmers to make their voices heard and to share their experiences in managing herbicide-resistant weeds.
This is changing with a series of seven regional listening sessions sponsored by the Weed Science Society of America, the United Soybean Board and the U.S. Department of Agriculture Animal and Plant Health Inspection Service. Farmers across the nation are being invited to share their challenges, successes and opinions.
Several sessions have been held to date. The themes that have emerged from the participants reflect the complexity of herbicide resistance management and the breadth of viewpoints about what needs to be done:
- There remains an economic trade-off between the decreased crop yields and increased long-term costs from resistant
- More research and education are still needed to help growers better manage their farms and the weed seed bank year round.
- There is an understanding that individuals cannot solve the problem themselves, but there is not a clear idea on how to work together.
- Participants are wary of regulation to deal with resistance, but there is some acceptance that some regulations may be needed to get everyone playing by the same rules.
- A greater emphasis is needed on nonchemical weed control tactics, including cultivation, weed seed management and use of cover crops.
- Zero tolerance policies for problematic, herbicide-resistant weeds should apply to everyone, including landowners, native seed producers and departments of transportation responsible for highway medians and rights of way.
- There is a scarcity of herbicides available to help growers of vegetable and specialty crops diversify weed control and battle herbicide resistance. Many hope researchers will develop new weed control chemistries with different mechanisms of action.