Why not use organic Sluggo? The active ingredient is iron phosphate and manufactured in a pelletized bait. Works great.

diatomacious earth or crushed eggshells and then you can salt the ones you see! They also drown real good in an empty tuna can of cheap beer!

rhizo, I agree! It's sprinkle and then forget unless you later see more slug damage. Then just sprinkle again, though the first time usually gets them all in my garden. I use it in my strawberry patch, don't have slug problems elsewhere.

people using a spray bottle with 4:1 water to ammonia to spray on slugs and the plants they are eating.

Using the thinking cap with a periodic table on it, this sounds like a bad idea.

Dan

I've done the sluggo, but I still see slugs. This is the first year we've had a really good strawberry crop (as good as it can be in a 4x6 bed) and it is just demoralizing to find a beautiful ripe one with a slimy slug inside of it. I think our yard has an epidemic. We've never lived anywhere with slugs before and I wasn't even looking for them until they started eating our berries.

Anyway, I've done the beer too, and left boards for them to hide under too. DE is next on the agenda--probably today, but if an ammonia spray worked it seems like it would be easier than all the other methods. Alas, it sounds like no one recommends that idea...
A

Your yard doesn't have an epidemic. You live in NorCal, so get used to it. And the snails. And earwigs. Copper strips work in small applications away from regular sprinkler overspray and need occasional cleaning.

Dan