Demeton Residues on Turnips, Squash, Tomatoes, Peppers and Snap Beans1

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The systemic pesticide demeton penetrates into the edible portions of vegetables in varying degrees. Little, if any, toxicant was found to he translocated into developing turnip roots, squash, tomatoes, and peppers as a result of foliar applications. Demeton-treated turnip tops contained initial residues high enough to require at least 21 days' weathering and growth to reach tolerance levels. Snap beans, having It lower tolerance, required a 14-day interval between last application and harvest to satisfy Federal requirements.

Document Type: Research Article

Publication date: August 1, 1959

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