• By Larry Steckel and Delaney Foster •
Several retailers and growers in recent weeks have asked about switching away from Xtend soybeans due to the poor pigweed control they have seen in consecutive years in some fields. There are...
• By Larry Steckel and Delaney Foster •
We have visited fields where growers assumed their Engenia or XtendiMax + glyphosate had controlled Palmer amaranth only to find that many had escaped and are now quite large (Picture 1). The...
• By Larry Steckel •
It is July 1, so the June 30 cut-off to spray dicamba over Xtend soybean has passed. The questions of the week have been once July has arrived what alternatives are there to control Palmer...
• By Larry Steckel, Clay Perkins and Delaney Foster •
Judging from research tests and walking a few farmers’ fields, many of the preemergence-applied herbicides in soybeans and cotton played out about a week or so ago. Timing is everything...
• By Clay Perkins, Larry Steckel and Delaney Foster •
This picture (Picture 1) was taken just four days after a dicamba + glyphosate + clethodim application on 3-inch Palmer amaranth. Judging from some experience with this Palmer population, the...
Dr. Jason Norsworthy and researchers at the University of Arkansas System Division of Agriculture have found a potential nonchemical option for growers to diminish the return of weed seed to the soil seedbank using harvest weed seed control mainly...
Corteva Agriscience recently launched Kyber herbicide, a three-way liquid premix for soybeans, for the 2021 season. The preemergence soybean herbicide has three effective modes of action: metribuzin, a Weed Science Society of America Group 5; flumioxazin, a Group 14;...
• By Larry Steckel •
Some have been concerned about losing dicamba due to court or Environmental Protection Agency rulings. Everyone should be more concerned about losing dicamba and 2,4-D to Charles Darwin’s theory.
Weeds developing herbicide resistance has caused the...
• By Larry Steckel •
Has Palmer amaranth evolved dicamba resistance in Tennessee? Results from some of the greenhouse experiments this winter and spring as well as in field research this growing season would suggest that our state now has...
• By Larry Steckel •
Calls continue from some folks frustrated with goosegrass, junglerice and Palmer amaranth escapes after a dicamba + glyphosate application. A large reason for the frustration is the follow-up applications have often provided less control than...
• By Larry Steckel •
As most know by now, on June 3 the U.S. Court of Appeals for the Ninth Circuit vacated the labels for XtendiMax, FeXapan and Engenia. The question now is how do we proceed from here...
• By Larry Steckel •
In 2019, we ran calls on about 40 fields where producers were disappointed with their Palmer amaranth control from applications of Engenia or XtendiMax. We collected Palmer amaranth seed last fall from 22 of these...
• By Vicky Boyd,
Editor •
BASF recently launched an industrywide initiative – “Operation Weed Eradication” – that challenges growers and others within agriculture to take a zero-tolerance approach to ridding fields of devastating weeds.
“As an industry, we’ve talked about managing...
Corn, soybean and cotton farmers shudder at the thought of Palmer amaranth invading their fields. The aggressive cousin of waterhemp – itself a formidable adversary – grows extremely rapidly, produces hundreds of thousands of seeds per plant and is...
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...
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