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Agricultural News

2012 Herbicide Update

Thu, 26 Jan 2012 13:05:08 CST

2012 Herbicide Update Along with the new year, there are a couple of minor changes regarding herbicide names, use rates, and labels to report.

First, a new formulation of the wheat herbicide PowerFlex® has recently been released. PowerFlex HL® (click for label) is the same active ingredient, but at a slightly higher concentration (the HL stands for "high load"). As a result, the use rate for PowerFlex HL is 2 oz/acre, compared to 3.5 oz/acre for the original PowerFlex formulation. Like the original formulation, PowerFlex HL should be applied with a non-ionic surfactant (NIS) at 0.5%. Nitrogen can also be added (1-2 qt UAN/acre or 1.5-3 lb AMS/acre) to enhance control. Rotation restrictions are also the same for PowerFlex HL as for the original formulation (3 months for soybean, grain sorghum, cotton, and sunflower; 9 months for corn and canola).

Another change for 2012 is that Ignite® herbicide (active ingredient: glufosinate) from Bayer CropScience will be sold as Liberty® (Liberty was the original trade name for glufosinate). Liberty can be used for postemergence weed control in LibertyLink crops and is also a useful alternative to glyphosate for burndown weed control where glyphosate-resistant weeds, such as marestail, are present. Other than the name change, use characteristics for Liberty will be the same as Ignite.

Other label changes and product updates will be posted on the extension news website as they become available. You can access their web site by clicking here.



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