1. A penicillium attack on hyacinth bulbs as affected by temperature and humidity

   • S. K. Chauhan
   • G. J. Saaltink

   OriginalPaper Pages: 197 - 204

2. Rotylenchus uniformis (Thorne) on carrots

   • J. W. Seinhorst
   • K. Kuniyasu

   OriginalPaper Pages: 205 - 223

3. A new method for inoculation of lettuce with Bremia lactucae

   • R. G. Kapooria
   • F. Tjallingii

   Short Communications Pages: 224 - 226

4. Adsorption of¹⁴C-labelled exudates by conidia of Botrytis fabae on Vicia faba leaves

   • H. H. Sol

   Short Communications Pages: 227 - 228

5. Smoke puffs as models for the study of spore dispersal in and above a cereal crop

   • J. C. Zadoks
   • A. O. Klomp
   • D. Van Hoogstraten

   Short Communications Pages: 229 - 232

6. The effect of some pesticides on the larvae of Cirrospilus vittatus, a parasite of the apple leaf miner Stigmella malella, in a laboratory experiment

   • M. Soehardjan

   Short Communications Pages: 233 - 235

7. Verenigingsnieuws

   • K. Verhoeff

   News Pages: 236 - 240

8. Errata

   Erratum Pages: 240 - 240

9. Errata

   Erratum Pages: 240 - 240