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Inhalt

Preface; P.T.N. Spencer-Phillips and M.J. Jeger.- The compatible interaction in downy mildew infections; J.S.C. Clark and P.T.N. Spencer-Phillips.- Forecasting downy mildew diseases; T. Gilles.- Cucurbit downy mildew: a unique pathosystem for disease forecasting; G.J. Holmes, C.E. Main and Z.T. Keever III.- Evaluation of MILIONCAST, a forecaster for onion downy mildew, with historical data; T. Gilles and R. Kennedy.- Use of disease forecasting models for control of onion downy mildew in New Zealand; R.W. Chynoweth, R.M. Beresford, W.R. Henshall and P.J. Wright.- Overwintering of rose downy mildew (Peronospora sparsa); X. Xu and T. Pettitt.- Influence of environmental factors on the disease cycle of white rust, caused by Albugo candida; E. Gilijamse, J.M. Raaijmakers, C.F. Geerds and M.J. Jeger.- Host specialisation of the oomycete Albugo candida; E.T.M. Meekes, M.J. Jeger and J.M. Raaijmakers.- Temporal and spatial variation in virulence of natural populations of Bremia lactucae occurring on Lactuca serriola; I. Petrzelová and A. Lebeda.- Downy mildew of pearl millet: present scenario in India; J.K. Dang and M.S. Panwar.- Genetic and pathogenic variability among isolates of Sclerospora graminicola, the downy mildew pathogen of pearl millet; R.P. Thakur, S. Sivaramakrishnan, S. Kannan, V.P. Rao, D.E. Hess and C.W. Magill.- Genetic and molecular characterisation of Plasmopara halstedii isolates from Hungary; H. Komjáti, C. Fekete and F. Virányi.- Response of wild and weedy Cucurbita L. to pathotypes of Pseudoperonospora cubensis (Berk. & Curt.) Rostov. (cucurbit downy mildew); A. Lebeda and M.P. Widrlechner.- Potential and limits for the use of new characters in the systematics of biotrophic oomycetes; O. Spring.- A seedling bioassay to detect the presence of Plasmopara halstedii in soil; T.J. Gulya.- Eicosapentaenoic acid, a possible marker for downy mildew contamination in sunflower seeds; O. Spring and K. Haas.- Isolation of viable Peronospora viciaehyphae from infected Pisum sativum leaves and accumulation of nutrients in vitro; N.K. El-Gariani and P.T.N. Spencer-Phillips.- Benzothiadiazole-induced resistance to Plasmopara halstedii (Farl.) Berl. et de Toni in sunflower; R. Bán, F. Virányi and H. Komjáti.- Index