Education: B.Sc., Faculty of Agriculture, Hebrew University of Jerusalem (HUJ), 1969; M.Sc. in Weed Science, HUJ, 1971 (Magna cum Laude); Ph.D. in Weed Science, HUJ, 1976;

Employment: Assistant in Weed Science - 1969-1974; Instructor - 1974; Lecturer - 1978; Senior Lecturer - 1984; Associate Professor of Weed Science - 1989; Professor of Weed Science - 1995. Jacob & Rachel Liss Chair in Agronomy and Weed Science- 1999.

Main Research Interests:
Behavior and environmental fate of herbicides in plant, soil and ecosystems; Physiology and biochemistry of herbicide action (selectivity); Herbicide resistance in plants and weeds, including transgenic crops; Environmentally safe herbicide formulations. Weed biology and ecology; Integrated weed management (IWM) in field and horticultural crops. Herbicide and the. Reduced herbicides input in agriculture.

Educational activities:
At the Faculty of Agr. - Teaching 4 courses in Wee Science to under- and post-graduate students. Teaching FAO International Course in Herbicide Resistance in Weeds and Crops. University of San Paulo, Jaboticabal, Brazil (1997); Teaching in a course "Use of Herbicides in Modern Agriculture: - university of Cordoba, Spain (1999).
More than 55 M.Sc. and. Ph.D. students conducted their theses under my supervision. At present, 3 Post-doctoral fellows, 7 Ph.D. and 9 M.Sc. students are working in the group.

Academic Activities
1976-1978 Research Associate and Post Doctoral Fellow, Dept. Crop and Soil Sci. and Dept. of Botany and Plant Pathol., MSU, East Lansing, Michigan, USA.
1982-present Member, Editorial Board of "Phytoparasitica"
1983-1984 On Sabbatical Leave: Res. Biochemist - Pesticide Chemistry and Toxicology Laboratory, Dept. of Entomology, UC, Berkeley, California, USA.
1984 Teaching International Course in Weed Science, INIA, Mexico.
1984-1988 President, Weed Science Society of Israel.
1987-present Member, Advisory Committee for Herbicides Registration, Ministry of Agriculture, Israel.
1989-1990 Visiting Professor, Dept. Agricultural Sci., University of Bristol, AFRC Institute of Arable Crops Research, Long Ashton Research Station, Long Ashton, Bristol, England.
1990-present Member, Senate of The HUJ.
1991-1994 Head, Research Committee, Fac. of Agric., HUJ.
1990-1993 HUJ Committee for Long-Term Planning of Studies and Research in Environmental Sciences.
1991-1995 Vice President and Member of the Executive Committee, MESAEP - Mediterranean Scientific Association of Environmental Protection.
1995 - 1996 Visiting Professor, On Sabbatical Leave in The Bio-Science Section Physiology, Zeneca Agrochemicals, Jealott's Hill Research Station, Bracknell, Berkshire, UK.
1996-present Member, Editorial Board -J. Environmental Sci. and Health - Part B.
1996-1999 Chairman, Scientific Program Committee - 14th International Plant Protection Congress, Jerusalem, 1999.
1996-present Chairman, Division of External Studies , Faculty of Agric., Food & Environm. Sci., HUJI, Israel.
1997-present Member, Japan-Israel Committee, co-operation in Plant Protection.
1996-present FAO consultant, IPM (integrated Pest Management).
1996-present Member, EHRWG - European Herbicide Resistance Working Group
1997 Teaching FAO International Course in Herbicide Resistance in Weeds and Crops. University of San Paulo, Jaboticabal, Brazil.
1999-present Vice President, IAPPS - International Association of Plant Protection Sciences.

Society Membership:
WSSI - Weed Science Society of Israel.
WSSA - Weed Science Society of America.
EWRS - European Weed Research Society.
IWSS - International Weed Science Society.
MESAEP - Mediterranean Scientific Association of Environmental Protection
IAPPS - International Association of Plant Protection Sciences.