Contamination of ryegrass seed with Drechslera species and its effect on disease incidence in the ensuing crop R. E. Labruyère OriginalPaper Pages: 205 - 215
Persistence of infectivity of three viruses in plant material dried over CaCl2 and stored under different conditions L. Bos OriginalPaper Pages: 217 - 220
Heat resistance, biology and prevention of Diehliomyces microsporus in crops of Agaricus species Annemarie Van ZaayenBernarda Van Der Pol-Luiten OriginalPaper Pages: 221 - 240
Tylose formation in elms after inoculation with an aggressive or a non-aggressive strain of Ophiostoma ulmi or with a nonpathogen to elms D. M. ElgersmaH. J. Miller Short Communication Pages: 241 - 243