Acta Phytopathologica et Entomoligica 31. (1996)

1-2. szám

Contents DISEASES Etiology of birthwort yellow mosaic and grapevine yellow mosaic and decline I. Tóbiás and J Lázár.................................................................................................................... 1 Production of polyclonal antibodies to grapevine leafroll associated virus isolated in Hungary and development of HRPO-based ELISA system I. Tóbiás, J. Lázár, M. Kälber and E. Papp................................................................................... 5 Destruction of tobacco mosaic virus in developing local lesions in leaves of Datura stramonium L. A. V. Reunov, G. D. Reunova, V. P. Nagorskaya, L. A. Lapshina and S. N. Lega........................ 11 Reuse of ELISA plates: Development of a simple cleaning method H. K. Manandhar, S. E. Albrechtsen and S. B. Mathur................................................................ 19 Occurrence of tomato pith necrosis incited by Pseudomonas corrugata in Hungary M. Hevesi, A. Zalka and K. Csizmár.............................................................................................. 31 Occurrence of Sep tor ia betulae on birch (Betula alba) in Argentina G. M. Dal Bello and A. E. Perello................................................................................................. 35 A marker system for Phytophthora parasitica based on hybridization of PCR products with species­­specific repetitive DNA T. Érsek, J. E. Schoelz andJ. T. English....................................................................................... 37 INSECT PESTS The winter mortality and developmental biology of Pseudaulacaspis pentagona Targioni-Tozzetti, 1886 (Homoptera: Coccoidea) D. A. F. Sheble and F. Kozár......................................................................................................... 45 A preliminary study on the armoured scale insect (Homoptera, Coccoidea: Diaspididae) fauna of Antalya F. Er 1er, F. Kozár and I. Tunç....................................................................................................... 53 Check-list of Coccoidea and Aleyrodoidea (Homoptera) of Afghanistan and Iran, with additional data to the scale insects of fruit trees in Iran F. Kozár, M. A. Fowjhan and M. Zarrabi..................................................................................... 61 Physical surface features of the grapevine leaf affecting the abundance of Zetzellia mali (Ewing) (Acari: Stigmaeidae) G. Jenser and Rosica Koleva......................................................................................................... 75 The role of spiders as predators of insect pests with particular reference to orchards: A Review S. Bogy a and P. J. M. Mols........................................................................................................... 83 riíUOWlÁMYOS AKADÉMIA KÖNYVTÁRA 3156?«

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