Barry Martin is a Hawkinsville, Ga., farmer who plants peanuts, cotton, corn, soybeans, wheat and grain sorghum, and uses strip till. He plants a cover crop in large part to control weeds, such as the herbicide-resistant Palmer amaranth. “A good cover of rye seems to prevent its germination,” he says. Learn more (watch the video).
Filed under: news | Tagged: cover crops, herbicide-resistant weeds, Palmer amaranth | Leave a comment »
By Clint Thompson, University of Georgia
Georgia cotton farmers are successfully managing the state’s most problematic weed, glyphosate-resistant Palmer amaranth, by using many methods, including hand-pulling the weed out of their fields. But tackling the weed is drastically cutting into their already limited profits, according to University of Georgia weed scientist Stanley Culpepper.
“When you ask most of our growers if they’re doing OK in regard to managing Palmer amaranth, the answer is, ‘Absolutely not.’ But it’s because of the cost of management, not the methods of management,” said Culpepper, a researcher with the UGA College of Agricultural and Environmental Sciences. Continue reading
Filed under: news | Tagged: cotton, herbicide-resistant weeds, Palmer amaranth, University of Georgia, weed control | Leave a comment »
Roundup-resistant Palmer amaranth has been bad in the Texas High Plains and Rolling Plains this year. And it could be worse in 2015.
Weather will play a role, say weed scientists Peter Dotray and Wayne Keeling, both with Texas AgriLife Extension in Lubbock. Dotray also has teaching and research responsibilities with Texas Tech.
“Rain made it seem like the light switch just turned on,” in early summer, Dotray said. “If it’s dry next year, resistant-weed infestations may not be as bad, but we know the source of plant resistance is here.”
Filed under: news | Tagged: herbicide-resistant weeds, Southwest Farm Press | Leave a comment »
Controlling weeds in wheat may never have been particularly easy, but increasing pressure from herbicide-resistant weeds makes the chore a bit more complicated.
But it’s not impossible, says David Drake, Texas AgriLife Extension agronomist who works out of the Research and Extension Center in San Angelo. Drake says six factors play important roles in effective weed control.
Filed under: news | Tagged: Crop rotation, David Drake, herbicide-resistant weeds, integrated pest management, San Angelo, Southwest Farm Press, Texas AgriLife | Leave a comment »
In the New York Times, August 11, 2014
By Michael Wines
The Terminator — that relentless, seemingly indestructible villain of the 1980s action movie — is back. And he is living amid the soybeans at Harper Brothers Farms.
About 100 miles northwest of Indianapolis, amid 8,000 lush acres farmed by Dave Harper, his brother Mike and their sons, the Arnold Schwarzenegger of weeds refuses to die. Three growing seasons after surfacing in a single field, it is a daily presence in a quarter of the Harper spread and has a foothold in a third more. Its oval leaves and spindly seed heads blanket roadsides and jut above orderly soybean rows like skyscrapers poking through cloud banks. It shrugs off extreme drought and heat. At up to six inches in diameter, its stalk is thick enough to damage farm equipment.
Filed under: news | Tagged: Arnold Schwarzenegger, glyphosate, herbicide resistance, herbicide-resistant weeds, integrated weed management, Monsanto, Palmer amaranth, Roundup resistant | Leave a comment »
Most farmers are aware of the concept of “air seeding;” i.e, distributing wheat or rice or bermudagrass seed with an airplane or a spreader truck or even by hand.
What some may not think about is another method of air seeding, spreading seed, especially of glyphosate or other herbicide-resistant weeds like Palmer amaranth, out the back of their combine during harvest operations.
Filed under: news | Tagged: chaff cart, Harrington Seed Destructor, herbicide-resistant weeds, Jason Norsworthy, Palmer amaranth, Respect the Rotation Pigposium, Roy Harrington, soybean chaff, University of Arkansas | Leave a comment »
You’re walking your fields, and you come across a weed that you know you’ve seen before. But you can’t call the name.
If that’s happened to you this spring or even in the last year or two, you need to download the new Ag Weed ID on your mobile phone. This free app, which is powered by Penton Farm Progress, can be invaluable in helping you ID and control problem weeds this spring.
Filed under: news | Tagged: Ag Weed ID, agriculture, herbicide-resistant weeds, Penton Farm Progress, weeds | Leave a comment »
North Carolina leads the way for Upper Southeast wheat acreage with another big and promising crop in the ground this year. But increasing problems with resistance to ryegrass-controlling herbicides is a big threat to the crop.
Filed under: news | Tagged: herbicide resistance, herbicide-resistant weeds, Italian ryegrass, North Carolina State University, wheat | Leave a comment »
Responding to the first known report of waterhemp showing resistance to HPPD (4-hydroxyphenylpyruvate dioxygenase)-inhibiting herbicides, such as Callisto, Impact, and Laudis, weed science researchers at the University of Illinois have identified two unique mechanisms in the plant that have allowed the weed to “get around” these herbicides.
Filed under: news | Tagged: agriculture, atrazine, farming corn, herbicide-resistant weeds, HPPD-inhibiting herbicides, University Extension, University of Illinois, waterhemp | Leave a comment »
While U.S. farmers have been grappling with herbicide-resistant weeds for the past few years, Australian wheat farmers have been battling them since the 1980s. According to a news story in Science magazine, Australian farmers are beginning to incorporate non-chemical weed control strategies into their farming practices—and finding that they are effectively controlling the weeds. Yet weed scientists caution farmers to practice integrated weed management and not rely on one single method.
Filed under: featured | Tagged: agriculture, herbicide-resistant weeds, integrated pest management, integrated weed management, IPM, ryegrass, Science magazine, silver bullet, Stephen Powles, wheat farming | Leave a comment »
