1. The infectibility of cowpea mesophyll cells by tobacco necrosis virus

   • J. Salinas Calvete
   • D. Hendrina Wieringa-Brants

   OriginalPaper Pages: 211 - 216

2. Damage effects of cereal aphids in wheat

   • R. Rabbinge
   • E. M. Drees
   • A. Wesselo

   OriginalPaper Pages: 217 - 232

3. Resistance to fungicides in plant pathogens: abstracts of papers

   Abstract Pages: 233 - 255

4. Book review

   • P. A. A. Loof
   • T. Limonard

   BookReview Pages: 257 - 257