it also could be cut worm thats damaging your plants its what is damagin mine right now , i have the same thing happening to me just not as heavy as yours so i went and cut all the yellow half eatin damaged leafs off and discarded them some where else other then by my plants and then i sprinkled cut worms and larvea killer in the soil mixed it into 1.5 inches of the soil and sprayed the leafs with sun light dish soap mixed with water in a regular spray bottle but just a pea size amount of soap so you dont burn your good leaves and spray the under side of the leaves its where the cut worms lay there eggs and you will get rid of the eggs with the soap , its my own bug repelant just have to spray evertime it rains thats all but hope this helps