I have a different opinion on Mexican produce. I spoke to a produce buyer...
...from one of the "big three" supermarket groups. He told me, off the record, that he would NEVER serve any produce grown in Mexico that touches the ground to HIS family. He said he witnessed Mexican farm fields being irrigated with water from highly questionable sources, and he thinks it is risky to buy Mexican strawberries, melons, squash, scallions and any other "ground" produce. He says tomatoes, cukes, peppers, mangoes, and any other "hanging" produce is safe.
This conversation took place a number of years ago, so maybe things have improved. Who knows? I'm STILL not willing to chance it.
Michael