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4 weeks ago | 
cottongrower.com | Lara Sowinski |Larry Steckel |Jim Steadman |Larry Stalcup
With dicamba off the market for 2025, Beltwide weed scientists continue juggling other herbicides to control weeds in XtendFlex-based varieties bred with dicamba resistance. Whether it’s dicamba-tolerant or Enlist varieties, glufosinate combined with residuals are a must to control weeds, says Maxwell Smith, Oklahoma State University Extension IPM Specialist. “The key is using residuals,” says Smith.
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Oct 23, 2024 | 
cottongrower.com | Lara Sowinski |Jessica Kelton |Larry Steckel |Jim Steadman
BASF’s Liberty ULTRA herbicide, powered by Glu-L Technology, has received U.S. EPA registration and is now approved for use, subject to state approvals. Liberty ULTRA herbicide, containing the active ingredient glufosinate-P-ammonium (also referred to as L-glufosinate ammonium), is the next generation of Liberty herbicide from BASF. This new post knockdown solution is effective on both broadleaves and grasses and is available for use on glufosinate-enabled cotton, soybean, corn, and canola acres.
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Oct 3, 2024 | 
cottongrower.com | Jessica Kelton |Larry Steckel |Jim Steadman |Beck Barnes
During the recent Tech Hub LIVE event in Des Moines, IA, David Reddel CCA RMS, Director of Agronomy Risk for Wilbur-Ellis Agribusiness, presented a roundtable on herbicide resistance and weed escape. In his role at Wilbur-Ellis, Reddel oversees the crop claims that are submitted by growers. This gives him a front-row seat to what’s happening across the industry and in the field. “One of the biggest trends I see right now is weed escape,” says Reddel.
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Oct 3, 2024 | 
news.utcrops.com | Larry Steckel
In a previous blog, we referred to recent research that showed fall-applied grass residual herbicides providing good ryegrass control well into the spring. In particular, that research showed that Command, Boundary and the pyroxasulfone based herbicides (Anthem Flex, Zidua) provided the best ryegrass control. At the time that blog was posted, Command was not labeled for that use pattern in Tennessee.
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Oct 3, 2024 | 
cottongrower.com | Larry Steckel |Jim Steadman |Beck Barnes |O.A. Cleveland
Soil health management practices, such as minimized disturbance and maximized soil cover, provide numerous benefits such as reduced erosion, increased water infiltration, and increased soil productivity. Implementation of cover crops can provide an additional benefit of weed suppression, particularly important for cotton, which suffers from early season weed competition.
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Sep 6, 2024 | 
news.utcrops.com | Larry Steckel
Ryegrass has become a serous weed issue in some fields the past couple of years. A major reason for this is that much of it is now glyphosate-resistant. Even if clethodim is used rather than glyphosate often it is applied on ryegrass sometime in late March through April when the grass is too well established to provide consistent control. A tactic often used in Mississippi to manage ryegrass is a fall application of Dual Magnum, Boundary, an Anthem product or Zidua.
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Sep 5, 2024 | 
news.utcrops.com | Larry Steckel
The two best fall-applied options for ryegrass and poa control in wheat are Anthem Flex and Zidua. Pyroxasulfone is providing the grass control in both these herbicides. Anthem Flex can be applied as a true PRE right behind the press wheel. Keep in mind there is some chance of wheat injury from this use if a rain occurs shortly after planting. As such, if rain is in the forecast wait and apply it later as a delayed PRE or early POST. Zidua can be applied in wheat only as a delayed PRE.
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Sep 5, 2024 | 
news.utcrops.com | Larry Steckel
Practically every September some growers are dismayed at the vine infestations present at corn harvest. Often, these weed infestations emerged after PRE applied or early POST applied herbicides had played out. They grew very little until August and as the corn dried down and light became more available those established weeds started rapidly growing. The vines in question are often perennial in growth habit like honeyvine milkweed, redvine, hedge bindweed and burcucumber.
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Aug 23, 2024 | 
news.utcrops.com | Larry Steckel
The extended planting season this year has resulted in an extended weed management season. Even with this in mind it has been surprising about questions this late in August on what can be sprayed on soybean to control pigweed, morninglories and grass. The biggest concern on herbicide applications made in late August is not so much the weed control this year but the carryover concern for crops in 2025. Many recrop intervals can be found on page 8 of the 2024 Tennessee Weed Control Manual.
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Jun 28, 2024 | 
news.utcrops.com | Larry Steckel
Serious infestations of goosegrass, junglerice and barnyardgrass have proven to be way too persistent in many cotton and soybean fields (Picture 1). Many are getting frustrated with the lack of control seen with tankmixes that contain glyphosate and/or clethodim or quizalofop. Some have asked if maybe some of these grasses have developed resistance to glyphosate, clethodim and quizalofop. Resistance is indeed part of the reason for the lack of grass control with glyphosate.
