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Old 11-18-2012, 01:42 PM
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RigglePLC RigglePLC is offline
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Join Date: Jul 2006
Location: Grand Rapids MI
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You will lose a few percent of the active ingredient, especially the dinitroaniline herbicides like prodiamine, or Team. They are subject to decomposition by sunlight. A lot depends on the rate of application and conditions of the lawn, low cut, heat, thinness, and the intensity of last year's crabgrass infestaion.
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