I put up bird netting to protect my cukes and squash but wound up with yellow-skinned cucumbers. I looked it up and found that the bees probably are not bothering to get through the bird netting to pollinate the cucumber blossoms. So I took the netting away and we're getting green cucumbers again! We do great with zucchini! Very large. One does us about 3 meals.
I rigged up a deer net over a hoop for the tomatoes which is keeping the deer away from them, but I'm not quite sure if they are getting all the sun they need. The net itself if rather thick and casts a bit of a shadow. But I'll live with it. At least we're getting the tomatoes this year, instead of providing the deer with their nighttime snacks.
Our lettuce was fine but it done now.