The influence of continuous cropping and free-living root lesion nematodes on yield of fodder maize K. ScholteJ. J. s'Jacob OriginalPaper Pages: 127 - 139
Suppression of Rhizoctonia solani in potato fields. II. Effect of origin and degree of infection with Rhizoctonia solani of seed potatoes on subsequent infestation and on formation of sclerotia G. JagerH. Velvis OriginalPaper Pages: 141 - 152
Yellows of glasshouse vegetables, transmitted by Trialeurodes vaporariorum H. J. M. Van DorstN. HuijbertsL. Bos OriginalPaper Pages: 171 - 184
Decreased sensitivity of Sphaerotheca fuliginea to fungicides which inhibit ergosterol biosynthesis H. T. A. M. Schepers Short Communication Pages: 185 - 187
The ability of American and African Colletotrichum isolates to cause coffee berry disease symptoms and the association of some isolates with Glomerella cingulata A. J. GielinkH. Vermeulen Short Communication Pages: 188 - 190