An analysis of the variability of the germinative power of conidia in a number of fungi belonging to the Peronosporales G. A. de Weille OriginalPaper Pages: 115 - 131
Research on apple and pear scab in the Netherlands from 1938 until 1961 G. S. Roosje OriginalPaper Pages: 132 - 137
The radio warning service for apple and pear scab in the Netherlands in 1961 and 1962 C. A. R. Meijneke OriginalPaper Pages: 138 - 144
A case of race differentiation of brown rust on mature plants of wheat J. C. Zadoks OriginalPaper Pages: 145 - 147
Samenvattingen van de voordrachten, gehouden op de planteziektendagen, 20, 21 en 22 Februari 1963, te Wageningen Report Pages: 148 - 160