Tag Archives: resistance

Cotton Prices Move Higher, But Nearing Point of Likely Market Resistance

The December supply demand report and the weekly export sales report were both void of any surprises this past week, but prices still moved higher. The March contract closed above 83 cents and is approaching the 84-to-85 cent mark suggested last week as a probable point where price resistance will be too stiff to penetrate.

Nematode-Resistant Variety Among Three New Deltapine Class of 14 Products

A new cotton variety bred for resistance to root knot nematodes (RKN) will be part of the recently-announced Deltapine Class of 14. Evaluated by nearly 200 cotton farmers in the Deltapine New Product Evaluator (NPE) program this season, the RKN-resistant variety – plus two other new commercial varieties showing outstanding yield potential – will join

Nufarm Announces CATS Herbicide Products for Resistant Weed Control

Nufarm has announced a new line of herbicide products that will offer cotton, soybean, peanut and corn growers effective, economical options for controlling herbicide resistant/tolerant weed species at all phases of the growing season. The CATS (Combating Troublesome Species) herbicide line will provide a range of solutions that will deliver control of numerous herbicide-tolerant or

Cotton Growers Continue Search for Herbicide Resistance Solutions

For nearly a decade, cotton growers have been battling to save crops from glyphosate-resistant Palmer amaranth – or pigweed. Though in many ways they are finally gaining the upper hand, an expert with the Weed Science Society of America (WSSA) says the progress has come at a great cost. “The current model simply isn’t sustainable,”

BASF Survey Shows 75 Percent of Growers Battling Glyphosate-Resistant Weeds

Three out of four growers participating in a recent BASF survey suspect that glyphosate resistance is a cause of their tough to control weeds. And, as a result, 76 percent of those growers have already changed their weed management program to address resistance. In addition, many growers report lower yields, which they attribute to resistant

China Develops Verticillium Wilt Resistant Cotton

China is taking the lead in the identification, testing, breeding, and application of a new cotton cultivar resistant to verticillium wilt. The Institute of Agro-Products Processing Science and Technology and the Institute of Plant Protection under the Chinese Academy of Agricultural Sciences (CAAS), and Nanjing Agricultural University have published the results of a study called

Monsanto Developing 24-Hour Glyphosate Resistance Test Kit

Monsanto is developing a color-changing dye that can detect glyphosate resistance in crops in just 24 hours, using a dye that changes color.  Dale Shaner, a plant pathologist who recently retired from the USDA ARS Water Management Research Unit, plans to help Monsanto fine-tune the technology. “Widespread use of glyphosate, often to the exclusion of

Southwest Producers Strike Back Against Resistant Pigweed

Although it’s difficult to pin down the exact time frame that glyphosate resistant Palmer amaranth was discovered in West Texas, experts say there’s no denying that 2012 was the year in which the troublesome weed pest arrived in a major way. Some weed scientists in the region claim to have had strong suspicions that certain

3 Ways China Could Reduce Pest Pressure, Resistance

China, the top cotton-producing country in the world at 16 billion pounds per year, first introduced Bt cotton in 1997. For the first decade, Bt cotton was highly effective against both cotton bollworm and pink bollworm. Recently, however, early signs of resistance to Bt cotton have been detected in caterpillars collected from the field, and

Weed Experts: Aggressive Management a Necessity for Resistant Weeds

By Jim Steadman jsteadman@meistermedia.com   Speaking at the recent MANA Southern Crop Consultant Meeting in Memphis, Alan York, professor emeritus at North Carolina State University, warned an audience of Mid-South crop consultants to have programs in place now to deal with herbicide-resistant weeds, especially Palmer amaranth. “We have about a five-year head start on you