Use a spray bottle of water and 1 teasp of dish detergent after the sun goes down and spray the plant.......you could have slugs....I use a throw away plastic gloves and pick them off.....you could sprinkle a little bit of sand around the bottom of the plants. Slugs don't like sand, it dries them out. Only eating the leaves....might be a deer can you put 2 or 3 drops of hot sauce in the soapy mix.....they do not like hot sauce.