I know the pesticides used on most commercial farms are water soluble so consumers can eat them after a quick wash. But I just picked hundreds of serviceberries at a local community college and noticed that there was some white powder all over the bushes. I just now made the connection that it is probably some kind of pesticide. Even if the powder wasn't, I am pretty sure that the groundskeepers spray the plants anyway. Can these pesticides be washed off the same way that commercial-grade food pesticide can?
Thanks!
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