Well, they didn't survive. They did last a week though. I first tried cherry plum leaves, apple tree leaves, grape leaves, raspberry leaves and lastly, celery leaves. They did not like any of those, so, I gave them lettuce leaves. They liked those ok enough at first, but then the worms dried out and died. So, I don't know if maybe I should have kept a cover on their box so they wouldn't dry out; or was the lettuce not enough to sustain them? Either way, I am trying to source some Mulberry chow food; dehydrated Mulberry leaves. Then I will order some more eggs and raise them the proper way.