I decided to try the beer in a bowl to see if I could capture the slugs who were trying to eat my Gymnocalycium cactus plants. I stayed up late last night to watch for slugs and found several more, which I removed from the plants. Before going to bed I put out a bowl of beer and the variety in our frig. Happened to be Sapporo - that's a really nice beer to give to slugs.

The next day (today) when I came home from work I checked the bowl of beer for dead slugs. There was one small dead slug, and I guess this method really works. There were also a few dead ants, yellow jackets, house flies and lots of green bottle flies. This beer in a bowl killed a lot more flies than slugs, but things are improving anyway.

The day was sunny enough to allow the surface of the soil to dry out, and I couldn't find any slugs tonight. I think the garlic oil may have helped, at least a little, to keep the slugs from returning to the plants they were feeding on.

Late last night I found a slug climbing on a plastic plant label as thought it were trying to get away from the garlic covered cactus plant. This was a cactus I sprayed about an hour earlier and I'm not sure why the slug ended up climbing the plastic label, but the plastic label was not sprayed with the oil. This fails to prove that the garlic oil was helpful, but it is enough to indicate that the garlic oil may be helpful. It appears that the slug was interested in eating the cactus and then ended up trying to get away from the plant by climbing into a space that wasn't sprayed with the garlic oil.