Environmental & Turf Services, Inc., Wheaton, MD, USA
Stuart Z. Cohen
Public Health Services, Ministry of Health, 91010, Jerusalem, Israel
A. Eisenberg
Dept. of Soil Organic and Residues Chemistry, ARO, The Volcani Center, 50250, Bet Dagan, Israel
U. Mingelgrin, Z. Gerstl & Sarina Saltzman
Dept. of Agricultural Ecology, Ministry of the Environment, 91061, Jerusalem, Israel
M. Davis
Makhteshim-Agan, Be’er Sheva, 84100, Israel
Z. Paster
Dept. of Agricultural Sciences, The Royal Veterinary and Agricultural University, 1870 Copenhagen V, Denmark
H. Haas
Dept. of Weed Science, ARO, Newe Ya’ar Regional Experiment Station, Haifa Post 31999, Israel
Y. Kleifeld
WRIT, Rehovot 76121, P.O Box 2196, Israel
U. Rosenberg
Dept. of Agricultural Sciences, University of Bristol, UK
J. C. Caseley
AFRC Institute of Arable Crops Research, Long Ashton Research Station, Bristol BS18 9AF, UK
J. C. Caseley
Dept. of Field and Vegetable Crops, The Hebrew University of Jerusalem Faculty of Agriculture, Rehovot 76100, Israel
B. Rubin
Ciba-Geigy Corp, Greenboro, NC 27419, USA
H. H. Lebaron
Dept. of Ornamental Horticulture, ARO, The Volcani Center, Bet Dagan 50250, Israel
M. Horowitz
Dept. of Plant Genetics, Weizmann Institute of Science, Rehovot 76100, Israel
Ziva Amsellem & J. Gressel
Weed Science Research, USDA-ARS, BARC West, Beltsville 20705, MD, USA
A. Sharon
Israel Bio-organic Agriculture Association, Shaul Hamelekh Blvd. 8, Tel Aviv 64733, Israel
H. Aviram
Plant Protection Staff, Kibbutz Saad 85140, Israel
E. Shlevin