Brand new to this web site. I too have tomato leaves with swiss cheese and smaller holes in the leaves. I did find tiny little green worms when I hosed the leaves and brought them to the table where I could see them. What do we do? I am in California.

I'm also new to this forum, been following it for about a year. I've noticed the same chewed holes in my leaves, and also have found what appears to be tiny black droppings on the leaves. Found one 1" green worm about two weeks ago, but none since. I've been searching a couple times a day. I live in Nebraska, anybody have any insight?

those are hornworms, green-hook on the tail and leave black droppings. If you type in hornworms in the search box at the top of the page you can get advice on different ways to get rid of them. I have them too! :(