Evaluation of a Sorghum Seed Treatment to Prevent Injury from Acetanilide Herbicides1

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Abstract
The effects on sorghum [Sorghum bicolor (L.) Moench, ‘RS 626’] stand of alachlor [2‐chloro‐2',6'diethyl‐N‐(methoxymethyl) acetanilide] and acetochlor [2‐chloro‐N‐(ethoxymethyl)‐6'‐ethyl‐o‐acetotoluidide] were studied with and without 1,8‐naphthalic anhydride as a seed protectant. If sorghum could be protected from injury from these acetanilide herbicides, they could be used for the control of seedling johnsongrass [Sorghum halepense (L). Pers.], which are serious weeds in this crop. It was concluded that, under the conditions of the test, the anhydride seed treatment provided little protection and the anhydride alone was as injurious to the sorghum as herbicidal rates of the herbicides.

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