The effect of some systemic nematicides on the control of Heterodera rostochiensis in the field H. den OudenR. F. van de Veer OriginalPaper Pages: 129 - 137
Screening Lactuca for resistance to Myzus persicae A. H. EeninkF. L. Dieleman OriginalPaper Pages: 139 - 151
Ascochyta hyalospora (Cooke & Ell.) comb. nov. in seeds of Chenopodium quinoa G. H. BoeremaS. B. MathurPaul Neergaard OriginalPaper Pages: 153 - 159
Induced pterocarpan formation in two Melilotus species T. Hijwegen Short Communication Pages: 161 - 163