• By Stanley Culpepper and Taylor Randell • Research over the past three seasons has confirmed a Georgia population of Palmer amaranth to be resistant to topical applications of PPO herbicides including Reflex, Cobra and Blazer (Figure 1). For cotton and peanut farmers, the question on everyone’s mind is if the residual activity of Valor and Reflex will still control ... Read More »
• By Daniel Stephenson and Josh Copes • Glyphosate-resistant Italian ryegrass has been an issue in the mid-South for the past 10 to 15 years. In Louisiana, growers have been battling this pest for five to 10 years, and the problem is spreading each year. Louisiana does not have ryegrass issues like Mississippi, but if control strategies are not implemented, ... Read More »
• By Larry Steckel • Some reports have come from folks concerned by the lack of Palmer amaranth response to applications of dicamba plus glyphosate applied in the last 10 days. I expect to get more of these calls as I have seen similar results in our research this spring. The half-pound rate of dicamba plus glyphosate applied to 3- ... Read More »
• By Larry Steckel • Clearly, after all the struggles in 2019 controlling grass weeds, many are looking to change their weed management program. The most frequent question recently has been on the best preemergent options to more account for barnyardgrass, jungle rice and goosegrass. In an attempt to do a better job on grass, most have decided to move ... Read More »
Bayer has announced a herbicide molecule in Phase 2 of early development that has demonstrated effective control of key resistant grasses in research trials, according to a company news release. At the same time Bayer researchers are working to identify and develop a corresponding trait to convey herbicide tolerance to crops. Discovery of this molecule is being complemented by a ... Read More »
Kochia, a kind of tumbleweed, has long been associated with the Texas High Plains, but its abundance is starting to alarm Texas A&M AgriLife officials as regional producers are experiencing challenges controlling the weed as herbicide resistance is mounting. Dr. Muthu Bagavathiannan, Texas A&M AgriLife Research weed scientist in the Texas A&M Department of Soil and Crop Sciences, College Station, ... Read More »
In June of this year, Dr. Gaylon Morgan joined the Agricultural & Environment Research Division at Cotton Incorporated. His area of expertise includes weed management, soil health, nutrient research and producer outreach. The addition of Morgan’s knowledge and experience is a win for U.S. cotton producers as weed pressure is an ever-present concern and future herbicide options are uncertain. Before ... Read More »
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