What do farmers think about resistant weeds?

in Southeast Farm Press

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. Continue reading

Use all tools available for weed control

In Southwest Farm Press

by Ron Smith

Herbicide-resistant weeds are no longer a problem that could cause trouble for Texas farmers sometime in the future — rather, “Weed resistance is real and a problem across Texas, the country, and the world,” says Pete Dotray, professor of weed science at Texas Tech University and a Texas AgriLife Extension specialist.

Pest resistance, including resistant weeds, isn’t new Dotray said at a recent Ag Technology Conference on the Texas A&M-Commerce campus. More than a hundred years ago — in 1908 –resistance to an insecticide was first noted; fungicide resistance was identified in 1940; and weed resistance to herbicides was confirmed in 1957, when spreading dayflower was identified as resistant to 2, 4-D. Continue reading

PPO-resistant pigweed spreading to Mississippi

In Delta Farm Press

A report from the 2016 Tri-State Soybean Meeting

It was big news in 2015 when Arkansas and Tennessee producers saw yet another pigweed-fighting chemistry — PPOs this time — sent to the bench. And the problem is spreading to other Mid-South states.

“We started getting calls pretty early in the growing season saying, ‘Hey, these pigweeds are blowing through Valor,’” said Tom Barber, University of Arkansas weed scientist, at the recent Tri-State Soybean Meeting in Stoneville, Miss. “Valor goes out on a lot of our acres. Continue reading

Session will update Alabama growers on weed resistance issues, new technology

From Southeast Farm Press

By Jim Langcuster, Alabama Cooperative Extension System

Alabama growers will be given an update on dealing with two increasingly noxious weeds during a day-long session scheduled Wednesday, Dec. 11, in Calhoun Community College’s Aerospace Building, located north of Decatur.

The meeting will begin at 8 a.m. and end at 3 p.m. Lunch will be provided.

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Herbicide resistance needs more proactive rather than reactive farming

This is reprinted from Delta Farm Press, written by Ford Baldwin. It’s a great case about why IPM should be used for weeds. Read the story at Delta Farm Press.

I just returned from the Global Herbicide Resistance Challenge conference in Fremantle, Australia. It was a great meeting with a lot of internationally renowned weed scientists making excellent presentations. It was essentially the “State of the Union” on where we are on herbicide resistance world-wide.

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Got Weeds? Manage Your Soil

With more and more weeds becoming resistant to herbicides, many experts are recommending a return to a set of practices called integrated weed management (IWM). Like integrated pest management, IWM relies on the biology of the pest—in this case, the weed—to reduce weed populations to manageable levels and prevent future weed introduction. IWM refers to the integrated use of cultural, physical, biological and chemical control strategies to contain or eradicate a population of weeds.

Continue reading