IOBC-WPRS Bulletin Vol. 9 (4), 1986

Proceedings of the 7th Symposium: "Integrated Plant Protection in Orchards", organized by the Working Group: "Integrated Protection in Orchards",
Wageningen (The Netherlands), 26-29 August 1985.
Edited by E. Dickler, L.H.M. Blommers & A.K. Minks.
ISBN 92-9067-004-5 [247 pp.].