First year I have had this problem: tomato leaves are having small holes chewed in them. Looks like pin has been stuck through the leaves, leaving in some places the look of window screens with round holes. Leaves on bottom of plants yellowing and dying, and new shoots and suckers are being most affected. Have found small black/brown bugs, which hop sometimes, that seem to be doing the damage. Best I can tell they are flea beetles. Can someone confirm and recommend an effective solution to the problem, preferably an organic one.