Working Group: "Integrated Protection in Orchards" Proceedings of the 3rd meeting of the Subgroup on integrated pest and disease control in hops, Freising (Germany), 9-12 August 1983. Edited by: I. Hrdý & H. Hrdlicková [79 pp.].
Working Group: "Integrated Protection in Orchards" Proceedings of the 3rd meeting of the Subgroup on integrated pest and disease control in hops, Freising (Germany), 9-12 August 1983. Edited by: I. Hrdý & H. Hrdlicková [79 pp.].