This is a follow-up to my note on potential links between resistance of honey b ee colonies to ill effects of Varroa vs. presence/absence of viruses vectored b y the mites. A precedent for Varroa being a vector of harmful bee viruses is wo rk done by B.Ball, F.M.Allen & co-workers at the Rothamsted Experiment Station, Harpenden, UK, who studied the acute paralysis virus (APV) in European colonis . A few refs.: Ball, 1988, in "Africanized Honey Bees and Bee Mites", edited by Needham et al., p. 457; Ball & Allen, 1988, Ann.appl.Biol.113:237; Allen et al ., 1986, J.Apicult.Res.25:100. Now they have shown that Varroa is the vector of the deformed wing virus (DWV) which causes adult and brood mortality in heavil y infested colonies and produces bee sympton previously attributed solely to th e mites (Abstract in Proc.Annual Meeting of Soc.Invertebrate Pathology, 1992). The implications of this regarding so-called resistance of African honey bee co lonies to Varroa was apparently discussed at the meeting. This is still specula tive but it makes sense - mite resistance may be a function of virus vectoring.