 Consume the whole, especially if the alfalfa's in bloom. It'll consume the entire plant. One thing that you've got to remember, though, a blister beetle is a tremendous predator of nymph grasshoppers. So if you still have small grasshoppers, it will feed on those guys. But we go from one extreme to another, it seems like, with the same insect from time to time. But I would say if you've got them on your tomato plants,