What is attacking my tomato seedlings? Something is breaking off the top of my seedlings. As soon as we move the seedlings to the raised bed, something is breaking off the top of the plant, DOES NOT EAT ANYTHING, happens at night. We see no tracks, tried covering the plants with chicken wire dome. What could it be, not a bird, not worm, maybe small rodent but no disturbance in the soft dirt. What can we do to prevent these night time attacks?