I'm happy to relay the (unsolicited) news that as of next week (May 2016) בע"ה, the organic vegetables grown by Ben's Farm (Ben Rosenberg)
http://bensfarm.co.il/ , will have a Belz hechsher, thus a much higher level of kashrut regarding trumot and maasrot than previously.
My experience has been that Ben is both trustworthy and responsible in
wanting to please his customers. Of course you still have to check for
bugs but generally, I find the produce (picked in the morning of the
evening I receive it), to usually be beautiful and healthy (and
'healthier!). Although it does take time to wash and carefully check it,
the difference in quality is palpable IMO.