Yoon,

Try Allen's Diary, (Allen Dick) at
http://www.internode.net/HoneyBee/misc/pollen/pollensupprint.htm or
http://www.internode.net/honeybee/diary/default.htm. There is a search
function for the diary that works great. It also has info on both pollen
substitute and pollen supplement, plus a whole lot of other informative
info. There are also some post on the list that Allen's diary will take you
to.

The first link above gives the address for an outfit in Stockton, CA.

Regards,

Chuck Norton
Reidsville, NC