Have you tried http://www.lithops.com?

Have you been to Plants for the Southwest? Its a great place nice selection.

Where did you get that from?

The first one looks like a trichocereus terscheckii that is in pretty bad shape.

There is loads of info on Agave, that was my only point.

I would recommend not planting it any deeper than what it is. A great forum that you want to check out is xericworld.com. Loads of info on Agave.

Here are a couple of seedlings I got growing right now. I do believe the cross was with a Fero rectispinus.

Here are my guesses:
1. basilaris
2. microdasys
3. aciculata

Where did you get them from?

If you don't want to use chemicals you can always use neem. This works to some degree in repelling insects.

Why don't you try a systemic pesticide?

I guess we are on the same page.

I also have a book by a highly respected author that lists cold hardiness figures, the lowest of which is 7C (45F) and that is only used for Opuntia and Pediocactus :shock: I'll suggest that if you keep Pediocactus at a minimum temperature of 7C (45F), they will die. 45f is not that cold. There are...