1. Systemic fungitoxic action of benomyl against Fusarium oxysporum f. sp. melonis in vivo

   • H. Maraite
   • J. A. Meyer

   OriginalPaper Pages: 1 - 5

2. Germination of powdery mildew conidia in vitro on cellulose membranes

   • M. A. De Waard

   OriginalPaper Pages: 6 - 13

3. A biochemical mechanism for the gene-for-gene resistance of tomato to Cladosporium fulvum

   • A. Van Dijkman
   • A. Kaars Sijpesteijn

   OriginalPaper Pages: 14 - 24

4. Begonia bertinii, a new host of Erwinia chrysanthemi

   • G. J. Saaltink
   • W. Kamerman

   Short communication Pages: 25 - 29

5. Viruses transmitted by Xiphinema species in the Netherlands

   • H. A. Van Hoof

   Short communication Pages: 30 - 31

6. Book reviews

   • J. G. ten Houten
   • F. L. Dieleman

   BookReview Pages: 31 - 32