Fungicide residue

The instructions for using Mancozeb say to not apply any later than 63 days prior to harvest. I'm keeping to those instructions, but I still see residue from it, in the form of a round, yellow spot on the bottom of the grapes. Should this have washed off by now? Is there a safety issue here? Tia. Ken A.
Reply to
Ken Anderson
Mancozeb is "practically non-toxic". You can read about it here and decide for yourself:
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Reply to
John DeFiore

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