One of the important things to remember about frogs and toads is that they are sensitive to most pesticides. They readily absorb them through the skin. Frogs and toads do have their bad points. At night the amphibian serenade outside my bedroom window is louder than a city street. The metaldehyde type slug baits are not very effective.
Paralyzed slugs die only if the following day is sunny.
If they recover before the sun dries them out, they crawl back in the shade. For slug control, I also suggest throwing spent flowers around the clump so that the slugs eat the spent flowers instead of making the long climb up the scapes to reach the new flowers. Give them free food on the ground and they won't search any higher. As a last resort for preventing slug damage, grow only tall daylilies. Slugs won't do much damage to flowers on three or four foot tall scapes.