by Cherlet, M.R, Gregorio, A.D, Hielkema, J.U. (FAO, Remote Sensing Centre, AGRT, Via Delle Terme di Caracalla, Rome (Italy))
Published in Bulletin OEPP (United Kingdom) (1991)

by Zwet, T. van der (Appalachian Fruit Research Station, Kearneysville, WV (USA))
Published in Bulletin OEPP (United Kingdom) (1994)

by Merkuri, J, Martelli, G.P, Boscia, D, Savino, V. (Plant Protection Institute, Durres (Albania))
Published in Bulletin OEPP (United Kingdom) (1994)

Published in Bulletin OEPP (United Kingdom) (1994)

by Bazzi, C, Stefani, E, Zaccardelli, M. (Istituto di Patologia Vegetale, Universita degli Studi, 40126 Bologna (Italy))
Published in Bulletin OEPP (United Kingdom) (1994)

by Duveiller, E. (CIMMYT (Centro Internacional de Mejoramiento de Maiz y Trigo), Lisboa 27, Apdo Postal 6-641, 06600 Mexico D.F. (Mexico))
Published in Bulletin OEPP (United Kingdom) (1994)

by Oomen, P.A, Ruijter, A. de, Steen, J. van der (Plant Protection Service, Wageningen (Netherlands))
Published in Bulletin OEPP (United Kingdom) (1992)

by Schroeder, L.M. (Swedish University of Agricultural Sciences, Division of Forest Entomology, PO Box 7044, 750 07 Uppsala (Sweden))
Published in Bulletin OEPP (United Kingdom) (1990)

Published in Bulletin OEPP (United Kingdom) (1990)

by Jacquart-Romon, C, Paulin, J.P. (Meteo France, Subdivision d'Agrometeorologie, 2 avenue Rapp, 75341 Paris Cedex 07 (France))
Published in Bulletin OEPP (United Kingdom) (1991)

by Jacquart-Romon, C. (Subdivision d'Agrometeorologie, Meteo France, 2 avenue Rapp, 75007 Paris (France))
Published in Bulletin OEPP (United Kingdom) (1991)

by Rocque, B. de la (Service Regional de la Protection des Vegetaux, 33152 Cenon Cedex (France))
Published in Bulletin OEPP (United Kingdom) (1991)