add lysine

bugs never seem to get enough, especially cereal grains

There is some work on artificial diets of stem borers in general and Chilo spp. in particular:

http://core.ac.uk/download/pdf/12106466.pdf

You may find the following abstract of some value: they suggest use of casein-wheat germ-beet armyworm diet for YSB

http://agris.fao.org/agris-search/search.do?recordID=PH9311299

Abstract: Suitability of artificial diets in developmental studies of selected insect pests of rice

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Angeles, A.T.

Demayo, C.G.

Bottrell, D.G.

Gould, F.L.

Vega, C.R.

Damasco, G.E.

Romena, A.M. (International Rice Research Inst., Los Banos, Laguna (Philippines))

Abstract:

A modified artificial diet originally developed for the rearing of the striped stemborer Chilo suppressalis was tested for its suitability to some other major rice pests. Life history of these pests was monitored on the diet and was recorded daily. Three stemborer species Chilo suppressalis, Sesamia inferens and Chilo auricilius and two armyworm species Spodoptera Mauritia acronyctoides and Mythimna separata showed high larval, pupal and adult emergence. The green horned caterpillar Melanitis leda ismene had relatively low survivorship. Two other species of rice stemborers Scirpophaga incertulas and S. innotata had no survivorship observed on this diet but S. incertulas showed good performance on the modified casein-wheat germ-beet armyworm diet preparations

most insects that are vegetarians love lysine

or try the big 5 Lysine methionine threonine and tryptophan and isoleucine