• Bakonyi, J.; Varga, K.; Nagy, Z. Á.; Koltay, A. 2003: Occurrence of Phytophthora citricola in an alder forest in Hungary. Planth Pathology,New Disease Reports, 52. 807.
  • Csóka, Gy.; Tóth, J.; Koltay, A. 1999: Trends of the sessile oak decline in North-Eastern Hungary. Methodology of Forest Insect and Disease Survey in Central Europe, Proceedings of the Second Workshoop of the IUFRO WP. April 20-23, 1999, Sion-Châteauneuf, Switzerland, 48-53.
  • Koltay, A. 1997: Diagnosis of needle pathogen fungus of Pinus nigra in Hungary. IUFRO WP Workshoop on Forest Insect and Disease Survey, Czech Republik, Pisek, April 7-10, 1997. FGMRI, p. 146-147.
  • Koltay, A. 1998: Biotic and Abiotic Damaging in the Hungarian Pine Forest. Zbornik referatov - I. čast Lesy a Lesnicky Vyskum Pre Tretie Tisicročie. Zvolen 11-14. October, 1998. 219-221.
  • Koltay, A. 1998: Health Condition of Hungarian Pine Forests. Methodology of Forest Insects and Disease Survey in Central Europe. Proceedings, First Workshop of the IUFRO WP 7.03.10, April 21-24, 1998, Ustron-Jszowiec (Poland). Warszawa 1998. p.133-137.
  • Koltay, A. 1999: Severe occurance of Cenangium canker on Austrian pine in Hungary. Methodology of Forest Insect and Disease Survey in Central Europe, Proceedings of the Second Workshoop of the IUFRO WP. April 20-23, 1999, Sion-Châteauneuf, Switzerland. 277.
  • Koltay, A. 1999: Susceptibility of different clones of Austrian pine to Sphaeropsis sapinea and Mycosphaerella pini. Methodology of Forest Insect and Disease Survey in Central Europe, Proceedings of the Second Workshoop of the IUFRO WP. April 20-23, 1999, Sion-Châteauneuf, Switzerland, 194-197.
  • Koltay, A. 2005: Phytophthora disease of Alder (Alnus glutinosa) in Hungary. Biotic damage in forests. IUFRO WP 7.03.10, Hungarian Forest Research Institute, Mátrafüred, September 12-16, 2004. Hungary
  • Koltay, A. 2006: New Results of the Research on the Alder Phytophthora Disease in Hungary. IUFRO Working Party 7.03.10 Proceedings of the WORKSHOP on "Methodology of Forest Insect and Disease Survey in Central Europe" Sept. 11th -14th, 2006 Gmunden - Austria. Poster.
  • Koltay, A. 2007: New Results Of The Research On The Alder Phytophthora Disease In Hungarian Alder Stands. Acta Silvatica & Lignaria Hungarica, Special edition (2007) pp. 209-214.&
  • Koltay, A. 2007: Susceptibility of Different Clone Grups of Austrian Pine to Mycosphaerella pini e. Rostrup and Sphaeropsis sapinea Dyko & &Sutton. Acta Silvatica && Lignaria Hungarica, Special edition (2007) pp. 47-52.
  • Koltay, A.; Bakonyi, J. 2005: Incidence of phytophthora disease of alder (Alnus glutinosa) in hungary. IUFRO konferencia, Freising. (Megjelenés alatt)
  • Koltay, A.; Bakonyi, J.; Nagy, Z. Á. 2003: Methods Used Investigating the Incidence of Phytophthora Disease of Alder in Hungary. Proceedings Ecology, Survey and Management of Forest Insects, p. 147-149. Krakow, Poland September 1-5, 2002. Published by USDA Forest service.
  • Koltay, A.; Tóth, J. 2008:Results of chemical plant-protection experiments against &Dothistroma septospora (Dorog.) Morlet and Sphaeropsis sapinea Dyko  Sutton in Black pine saplings. IUFRO WP 7.0310. Methodology of Forest Insect and Disease Survey in Central Europe, Proceedings of the Workshop on Insects and Fungi in Storm Areas, September 15 to 19, 2008. Strebské Pleso, Slovakia. Poster.
  • Lassaad, B.; Bakonyi, J.; Nagy, Z.; Gautier, C.; Koltay, A.; Oszako, T.; Woodward, S. 2007: Two new ITS clade 6 Phytophthora spp. Inhabiting declining Alnus glutinosa stands. FEMS Microbiology Letters. (megjelenés alatt)