Leaf area dynamics of potato cultivars infected by Phytophthora infestans M. Van Oijen OriginalPaper Pages: 345 - 354
The spatial structure of spontaneous epidemics of different diseases in a groundnut plot C. LannouS. Savary OriginalPaper Pages: 355 - 368
Survey of faba bean (Vicia faba L.) for viruses in Morocco M. FortassL. Bos OriginalPaper Pages: 369 - 380
Mite-borne virus isolates from cultivated Allium species, and their classification into two new rymoviruses in the family Potyviridae P. van DijkM. VerbeekI. Bos OriginalPaper Pages: 381 - 399
Induced resistance in tomato plants against Fusarium wilt invoked by Fusarium oxysporum f.sp. dianthi B. A. M. KroonR. J. SchefferD. M. Elgersma OriginalPaper Pages: 401 - 408
Induction of mutants of Fusarium oxysporum f. sp. lycopersici with altered virulence B. A. M. KroonD. M. Elgersma OriginalPaper Pages: 409 - 416
A hundred and more years of plant protection in the Netherlands J. C. Zadoks Erratum Pages: 417 - 417