1. Perceptions of Biological Controls

   • Ronald E. Wall

   Guest Editorial Pages: 3 - 5

2. Effects of azadirachtin on the regulation of midgut peristalsis by the stomatogastric nervous system inLocusta migratoria

   • Peter Trumm
   • August Dorn

   Research paper Pages: 7 - 26

3. Improved chemical control ofCapnodis tenebrionis andC. carbonaria in stone-fruit plantations in Israel

   • S. Ben-Yehuda
   • F. Assael
   • Z. Mendel

   Research paper Pages: 27 - 41

4. Seasonal abundance of different stages of the citrus thrips,Scirtothrips aurantii, on two mango cultivars in South Africa

   • T. Grové
   • J. H. Giliomee
   • K. L. Pringle

   Research paper Pages: 43 - 53

5. Relationships of aphid and mite infestations to control ofBotrytis cinerea byClonostachys rosea in rose(Rosa hybrida) leaves

   • M. A. B. Morandi
   • J. C. Sutton
   • L. A. Maffia

   Research paper Pages: 55 - 64

6. Powdery mildew resistance in selections from moroccan barley landraces

   • J. H. Czembor
   • H. J. Czembor

   Research Papers Pages: 65 - 78

7. TransgenicNicotiana Benthamiana and grapevine plants transformed with grapevine virus a (GVA) sequences

   • S. Radian-Sade
   • A. Perl
   • Edna Tanne

   Research Papers Pages: 79 - 86

8. Abstracts of presentations on selected topics at The XlVth International plant protection congress (IPPC) 2. NEEM (Azadirachta indica)

   • K. R. S. Ascher
   • J. Meisner
   • R. B. L. Gupta

   Meeting Pages: 87 - 90

9. In Memoriam

   • Yaakov Okon
   • Giora Kritzman
   • K. R. Simon Ascher

   Obituary Pages: 91 - 92