Biological control of pests by mites : proceedings of a conference held April 5-7, 1982 at the University of California Berkeley, [and] APHIS-PPQ, U.S.D.A., and Agricultural Research Service, U.S.D.;edited by Marjorie A. Hoy, Gary J. Cunningham, and Lloyd Knutson. - Hoy, Marjorie A.; Knutson, Llyod V. (Agricultural Experiment Station, Division of Agriculture and Natural Resources, Univerity of California, 1983)