In the cotton plant, Temik [10% granular formulation of UC-21149, 2-methyl-2-(methylthio)propionaldehyde 0-(methylcarbamoyl)oxime] was rapidly metabolized to its sulfinyl derivative (Temiksulfoxide); further oxidation to the sulfonyl compound (Temik-sulfone) was slow. No evidence of oxidative A-demethylation was found. The sulfinyl derivative was degraded primarily by hydrolysis to a sulfinyl-oxime. Both Temik-sulfoxide and Temik-sulfone were stable in cotton. Relatively large amounts of radioactivity were lost from C14-Temik-treated excised cotton leaves. In the three soil types studied under laboratory conditions,

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