I found a green hornworm in my tomatoes tonight - first one ever. The good news .... he was covered with little white cocoons from a braconid wasp ... bye bye hornworm. It looked like this:
http://www.organicgardeninfo.com/braconid-wasp.html
That’s very interesting. We always have a few hornworms - boy are they hard to see. They blend in perfectly with the tomato foliage. I’ve never seen a wasp like that before, nor a worm with all that white stuff on it either. Thanks for the link.