palmer pigweed

• By Larry Steckel • I was thinking it might be 2021 or at least 2020 before we would start getting reports of Xtend soybean fields that were wrapped up with Palmer amaranth. Wrong! It is 2019. I visited several soybean...

A Kansas State University researcher reports the first-ever study confirming Palmer amaranth has developed resistance to the herbicide 2,4-D, findings that may signal an important step in developing future controls. Vipan Kumar, a weed scientist at the Agricultural Research Center...

• By Larry Steckel • A year ago this month, I posted a blog titled “Dicamba in Tennessee: Year 3.” At that time, the Tennessee Department of Agriculture had fielded 45 official dicamba drift complaints. There were some issues on...

• By Larry Steckel • There have been a good number of calls on sketchy Palmer amaranth control with a 12.8 oz/A of Engenia or 22 ozs/A of XtendiMax mixed with a quart/A of Roundup PowerMax. I visited a number...

University of Arkansas weed science professor Jason Norsworthy is hosting the latest Focus On Soybean webcast titled "Seed Burial and Persistence of Palmer amaranth and Waterhemp." During the 22-minute presentation, Norsworthy will provide information about the effects of tillage methods...

• By Tommy Butts and Tom Barber • There are two new Extension publications available from the Arkansas Weed Science team, FSA2185 – Metolachlor Herbicides: What are the Facts, and MP554 – Herbicide Resistance Traits: Quick Reference Guide. Metolachlor herbicides are typically...

Palmer amaranth, commonly known as pigweed, has been a longtime foe of Arkansas soybean farmers. Jason Norsworthy, weed scientist for the University of Arkansas System Division of Agriculture, said it is the No. 1 weed affecting Arkansas soybean production. However,...

Waterhemp and Palmer amaranth, both members of the pigweed family, have become significant threats to crop yields and farm incomes across the Americas. In the United States, they compete with crops in the South and in parts of the...

Palmer amaranth is one of the most economically-damaging and difficult-to-control broadleaf weeds across the United States. Previously, Palmer amaranth in Kansas has developed resistance to group 2 (ALS), 5 (atrazine), 9 (glyphosate) and 27 (HPPD – mesotrione, Huskie, Laudis,...

The newest University of Arkansas System Division of Agriculture weed scientist says he expects to rack up more than a few miles of field walking as he learns more about the issues faced by Mid-South farmers. Hailing from southern Wisconsin,...

For decades, the fight against weeds in Arkansas agriculture —barnyardgrass and Palmer amaranth, in particular — has been an ongoing war of attrition as weed populations gradually acquire resistance to one herbicidal chemistry after another. During this time, weed scientists...

New multiple-resistant pigweed biotype proves hard to control, reinforces need to rotate effective herbicide modes of action. By Larry Steckel A survey sponsored by the Tennessee Soybean Promotion Board was conducted last summer to determine the percentage of fields that...

A team led by Kansas State University researchers has cracked the genetic code about how Palmer amaranth quickly grows resistant to glyphosate herbicide. The findings could have broad implications for agriculture and other industries, according to a university news release. Their...

DuPont Crop Protection has introduced EverpreX herbicide for soybean weed control. Containing the active ingredient S-metolachlor, the product controls most annual small-seeded grasses and select broadleaf weeds, including waterhemp, Palmer amaranth and other pigweed species. EverpreX belongs to the Weed Science...

Dicamba drift complaints are up sharply this year compared to 2016 in Arkansas, with 117 having already been logged with the Arkansas State Plant Board as of June 19. Jason Bond, a weed Extension specialist at Mississippi State University, also...