【作者】:Beerling, E.A.M. (University of Amsterdam (Netherlands). Department of Pure and Applied Ecology); van der Geest, L.P.S.
【题名】:A microsporidium (Microspora: Pleistophoridae) in mass-rearings of the predatory mites Amblyseius cucumeris and A. barkeri (Acarina: Phytoseiidae): analysis of the problem