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Syngenta Field Report

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The Syngenta Field Report features information and experts from Syngenta sharing observations about issues growers are dealing with in the fields.

The three Rs of glyphosate resistance

Sep 11, 2009
Chuck Foresman

Residual. Residual. Residual. These are the guidelines Georgia growers must follow to control glyphosate resistance in their fields. One of my colleagues in the area says he’s seen fields like this one, where, in the spring, Palmer pigweed is so thick, “You can’t drop a BB without hitting a pigweed.”
 
With weeds like Palmer pigweed, which can grow a couple inches in just one day and produce 400,000 seeds per plant, residual herbicides are necessary. Growers need to stay ahead of the weed and not let it get too large to control. Otherwise, it is possible to lose the crop, according to my colleague. He’s seen it happen, and based on experience, he recommends residual products in soybeans and cotton.
 
He also expects the continuous use of glyphosate in other areas of the country cause problems like those he sees in Georgia. In this field, you can see the difference between applying a residual and not using one. For customized solutions to these types of weed problems, check out this Solution Builder.
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