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The ectoparasitic honey bee mite Varroa jacobsoni, first described by OUDEMANS (1904) from the Asian honey bee Apis cerana in Java, is distributed throughout Asia, wherever A. Cerana occurs (D E JONG and MORSE 1979). Since the 1950’s, and probably earlier, beekeepers have moved colonies of European bees, A. mellifera, into Asia (CRANE 1978) and in some cases colonies of A. cerana (infested with Varroa) from Asia into Europe (L ANGHE and NATSKII 1976, RUTTNER and RITTER , 1980) and, as a result of contact between the two bee species, V. jacobsoni has moved to A. mellifera as a new host (CRANE 1978, MORSE, 1978). Although A. cerana is not seriously affected by the mites, colonies of A. mellifera are severely compromised (A LPATOV 1977). Within the last twenty years Y. jacobsoni has extended its range from Asia to Eastern and Western Europe. Northern Africa and much of South America (CRANE 1978, 1979).

A COMPARATIVE ANALYSIS OF SHAKING SOLUTIONS FOR THE DETECTION OF VARROA JACOBSONI ON ADULT HONEYBEES