If they eat a whole crinum per night, it's bigger than a snail.

For me, it's lubbers that eat my crinums, but agree with barron if they eat the whole crinum in one night it's bigger then a snail or lubber. Maybe a rabbit. Or a couple of rabbits. We buy a critter repellant at Walmart that has worked on raccoons, you might try. It is a granular you sprinkle around the plant.

My 1st thought was grasshoppers as well - they love my crinums. Nothing else seems to eat them....

Thanks everyone. Our critter repellent is a 150-pound Great Dane, who works in tandem with a pitt bull next door. I've actually taken sand the Dane had peed on and sprinkled it around tomatoes that someone was raiding - probably raccoons - and that seemed to scare them off. I've never seen the lubbers in my yard. Aren't they kind of seasonal? This doesn't seem to be a seasonal problem. Happens at any time of the year. I'm going to try snail bait, but yeah, the damage seems extreme for snails. Hmmmm.

Why don't you try more of the Dane's pee sand around the crinums? Maybe it will work there too.

I guess you could call the lubbers seasonal, but for me they are here in my garden most of the year. Only a few of the coldest months of winter are they gone. They started hatching back in the warm days we had in Jan this year and we've been killing them ever since. By the middle of summer we'll be dealing with the adults, not just hatchlings.

I might just do that katkin! I've cursed the fact that he will only pee in one spot in the yard, turning that area into noxious sand where nothing will grow. But it does leave me with a ready supply of Dane pee sand.