Google "tomato hornworm damage" and look at images. They can hide during the day and are difficult to see at night.
Also. . . field mice ( I think they're called voles?) can scurry under chicken wire. Actually I would imagine squirrels etc could go over it too.
Grasshoppers can eat quite a bit too. . . though my first guess would be hornworm. Slugs like to munch but I've never heard of them eating half of a tomato overnight.
__________________
Sara
|