I have had slugs and snails on my daylilies, not a lot so far, but a few early in the mornings still when I get out. I have just been spraying the ones I see and around the base of the plants with a diluted ammonia solution in a small hand sprayer 1 qt. The ratio I am using is probably 1:10, or 1:12 somewhere in that range. If they get worse I will have to buy some more Sluggo or something similar. They have done very little damage to my daylilies, but they devoured my hosta last year. So far I have seen no harm done to the plants when spraying them with this solution.