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UGA Extension study shows impact of herbicides on pecan trees

Posted on March 26, 2018 by southernipmcenter

By Clint Thompson, University of Georgia

Dicamba and 2,4-D herbicides, sprayed directly on trees at full rates, kill the plant material they touch, but they don’t travel through the tree or linger from year to year, according to a newly released University of Georgia Cooperative Extension pecan study. The study also found that drift from the herbicides does not hurt the trees.

UGA Extension pecan specialist Lenny Wells and UGA Extension weed scientist Eric Prostko researched the effects of low and high concentrations of dicamba and 2,4-D herbicides on pecan trees at the university’s Ponder Farm in Tifton, Georgia. They studied 5-, 8- and 9-year-old ‘Desirable’ pecan trees. No data was collected on older trees. Continue reading →

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Scientists find time of day makes a difference with some herbicides

Posted on July 5, 2017 by southernipmcenter

In Southeast Farm Press

What if a cotton producer needed to spray early in the morning or late in the afternoon or at night? Does the time of day a herbicide is applied make a difference in how well it works? A group of weed specialists studied this and what they found surprised them.

The group included scientists from the University of Georgia, Louisiana State University, Mississippi State University, North Carolina State University and the University of Tennessee. Continue reading →

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PPO-resistant pigweed, ragweed will be a major concern in 2016

Posted on January 8, 2016 by southernipmcenter

In Southeast Farm Press

North Carolina State University Extension Weed Specialist Wes Everman has continually issued warning bells that resistance to PPO inhibitors is a real concern for North Carolina farmers. It is a message he will continue to deliver in 2016.

Speaking at the 2015 fall convention of the North Carolina Agricultural Consultants Association in Raleigh Dec. 4, Everman said PPO-resistant palmer Amaranth has been confirmed in Tennessee and Arkansas. “I’m pretty confident we have it in Palmer here. And we’re most of the way down the road toward confirming it in ragweed here as well,” he said. Continue reading →

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Weed control options, new cotton varieties highlight BIG Conference cotton session

Posted on December 3, 2015 by southernipmcenter

by Blair Fannin, Texas A&M AgriLife

A variety of weed control options will be discussed in-depth at the 2016 Blackland Income Growth Conference scheduled Jan. 5-6 at the Waco Convention Center.

Dr. Paul Baumann, Texas A&M AgriLife Extension Service state weed specialist in College Station, will provide an overview of weed control options related to pigweed resistance, and 2,4-D-and Dicamba-tolerant cotton. He will also evaluate yield potential with 2,4-D and Dicamba drift damage. Continue reading →

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When you’re doing burndown, be careful about what’s nearby

Posted on April 20, 2015 by southernipmcenter

From an article in Delta Farm Press

by Bob Scott, University of Arkansas

Burndown and planting is in full swing in southeast Arkansas as I am writing this article. We are still pretty wet, however, in some areas up north. When we are anxious to plant, we tend to take risks. Watch out for wheat fields and other sensitive areas while trying to make last minute burn-down and pre applications. In particular, be aware that at this time of year, wheat is extremely sensitive to Roundup drift.

Continue reading →

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