Books reviwed in this article:ObstkrankheitenSchramm, K.‐H.; Gerlach, W.:Kulturen phytopathogener Pilze der Deutschen Sammlung für Mikroorganismen (DSM) am Institut für Mykologie der Biologischen Bundesanstalt (IMB)Root Diseases and Soil‐borne PathogensSecond International Symposium on Factors Determining the Behavior of Plant Pathogens in Soil Held at Imperial College, London July 14–28, 1968 in Conjunction with the First Internationaal Congress of Plant Pathology. Ed.: Toussoun, T. A.; Bega, R. V.; Nelson, P. E. BcrkeleyAnnual Reivew of PhytopathologyEd. by K. F. Baker, G. A. Zentmyerand E. B. CowlingBos, L.: Symptoms of Virus Diseases in PlantsKoch, W.: Unkrautbe