That is why I don't mind spraying the ammonia several times a week, even if I don't see any slugs, I feel I am killing the eggs, and if not that at least I am giving the plants a boost of nitrogen which seems to be low in some spots in my garden beds where I have added so much organic matter and the earth worms have not taken over yet. Never would have dreamed of using it straight, but I do prefer the green tinted ammonia, it has done no harm so far and I can tell at a glace which spray bottle to pick up.
