1. Deterioration of agricultural research in the U.S.A.

   • Milton N. Schroth

   Guest editorial Pages: 269 - 272

2. The influence of different treatments causing emigration of nitidulid beetles

   • E. Donahaye
   • S. Navarro
   • R. Dias

   OriginalPaper Pages: 273 - 282

3. Population studies of the citrus psylla,trioza erytreae: factors influencing dispersal

   • M. A. Van Den Berg
   • Susan H. Anderson
   • Valerie E. Deacon

   OriginalPaper Pages: 283 - 289

4. A survey of entomopathogenic nematodes (rhabditida) in the negev desert

   • I. Glazer
   • Noa Liran
   • Y. Steinberger

   OriginalPaper Pages: 291 - 300

5. Effects of moisture and septoria tritici blotch stresses on wheat yields under semi-arid conditions: A Simulation study

   • D. Shtienberg

   OriginalPaper Pages: 301 - 310

6. The presence of crown gall of grape incited byagrobacterium tumefaciens biovar 3 in Israel

   • Jerry H. Haas
   • Aida Zveibil
   • Shulamit Manulis

   OriginalPaper Pages: 311 - 318

7. Abstracts of papers presented at a meeting of the weed science society of israel on possibilities of reducing herbicide use

   • Stuart Z. Cohen
   • A. Eisenberg
   • E. Shlevin

   Meeting Pages: 319 - 330

8. Abstracts of papers presented at the United States/Israel bard workshop on new targets for insect management in crop protection

   • E. P. Masler
   • T. J. Kelly
   • K. R. S. Ascher

   Meeting Pages: 331 - 358

9. Corrections

   • E. P. Masler
   • T. J. Kelly
   • K. R. S. Ascher

   Erratum Pages: 311 - 311