Hornworms and an alternative diet

[bugmankeith]

I have successfully raised hornworms on silkworm chow after their hornworm chow was used up. But now the silkworm chow has been eaten up as well.

Do you think they will do well on fresh,white mulberry leaves picked each day? And do they eat Petunia leaves, I thought Petunias were in the Nightshade family?