They are tomatoe horned worms.............you can put on a plastic glove and pick them off and drop them into soapy water................or you can mix up 1 teasp of liquid kitchen or hand soap liquid in 1 qt water and spray. Some people have told me that they used a can that cat food comes in and fill it with beer and make a hole near the plant and put the can in level with the ground. They claim that it works. but I like the soap spray better.