Mg. Klein et Pg. Allsopp, ARTIFICIAL DIETS FOR 3RD INSTAR JAPANESE-BEETLE (COLEOPTERA, SCARABAEIDAE), Journal of entomological science, 29(4), 1994, pp. 585-589
Of four diets tested, one based on lima beans and casein was selected
as the best and easiest for rearing third instars of Japanse beetles,
Popillia. japonica. Newman. The diet gave the best survival and heavie
st pupae and was previously used for rearing larvae of the New Zealand
grass grub, Costelytra zealandica (White).