I have not seen a single hornworm this season. However, I was out taking care of tomatoes, watering and pruning and discovered two different pests. One tomato fruit had a bunch of holes in it and three different little wormy things. They were an inch or so long, VERY skinny, and had a zillion legs, looked centipede-ish. Dark with lighter brown crossbar stripes.
Then I found a caterpillar that was clearly a leaf eater from the condition of the leaf he was on. A lot bigger and thicker (but considerably smaller than a horn worm), dark with narrow orange stripe longitudinally down each side.
I don't have time now to try to ID them, but I just thought I'd mention them.
Tomatoes are being slow to ripen, but everything is looking good. Found the first beginnings of septoria, so I removed all the leaves showing any signs and did a lot of pruning out leaves/branches growing in to the interior of the cage to improve air circulation. These are the plants the deer chewed on, so they got really bushy.