Although much has been said of the possibility of controlling some insect pests with Microsporidia, no very satisfactory ways have been found of preserving infective spores for long. Storing of viable spores is difficult. The best methods to date are keeping viable spores in water at 0 C or using hibernating host insects as spore reserves. Microsporidia do not stay infective for more than a few months when kept dry, or in water, or in their dead host, even at about 0 C (Weiser, 1963). The same applies to spores of Nosema apis The Preservation of Infective Microsporidian Spores, BAILEY *********************************************** The BEE-L mailing list is powered by L-Soft's renowned LISTSERV(R) list management software. For more information, go to: http://www.lsoft.com/LISTSERV-powered.html Guidelines for posting to BEE-L can be found at: http://honeybeeworld.com/bee-l/guidelines.htm