<i>Phytophthora chrysanthemi</i> (Naher, Hi. Watan., Chikuo & Kageyama)

  • Sabine Werres Julius Kuhn Institute – Federal Research Centre for Cultivated Plants (JKI), Institute for Plant Protection in Horticulture and Forestry (GF), Messeweg 11/12 D – 38104 Braunschweig, Germany
  • Monika Götz Julius Kuhn Institute – Federal Research Centre for Cultivated Plants (JKI), Institute for Plant Protection in Horticulture and Forestry (GF), Messeweg 11/12 D – 38104 Braunschweig, Germany
  • Željko Tomić Croatian Centre for Agriculture, Food and Rural Affaires, Institute for Plant Protection, Gorice 68b 10000 Zagreb Croatia
  • Dario Ivić Croatian Centre for Agriculture, Food and Rural Affaires, Institute for Plant Protection, Gorice 68b 10000 Zagreb Croatia
  • Francesca Peduto Hand The Ohio State University, Department of Plant Pathology 2021 Coffey Road, Columbus, OH 43210, USA
  • Colette Gabriel C. Wayne Ellett Plant & Pest Diagnostic Clinic & Ohio Department of Agriculture - Division of Plant Health (this is a co-located lab) 8995 E. Main St., Bldg. 23 Reynoldsburg, OH 43068-3399, USA
  • David McCann C. Wayne Ellett Plant & Pest Diagnostic Clinic & Ohio Department of Agriculture - Division of Plant Health (this is a co-located lab) 8995 E. Main St., Bldg. 23 Reynoldsburg, OH 43068-3399, USA
  • Paul W. Tooley USDA-ARS, Foreign Disease-Weed Science Research Unit, 1301 Ditto Avenue, Fort Detrick, MD 21702-5023, USA

Abstract

In 1998 a root rot on Chrysanthemum caused by an unknown Phytophthora species was observed in Japan. In 2003 the pathogen was detected again in Japan, in hydroponically grown potted chrysanthemum (Watanabe et al. 2007). This unknown Phytophthora species was identified as Phytophthora chrysanthemi sp. nov. (Naher et al. 2011).
In Europe P. chrysanthemi was first detected in Croatia in 2008 and 2009 (Tomić and Ivić 2015) on Chrysanthemum cultivated in a nursery. In 2015 P. chrysanthemi was detected in a German ornamental nursery on Chrysanthemum indicum (Götz et al. 2017). A further Phytophthora isolate detected in a German ornamental nursery in 2016 was also identified as P. chrysanthemi (Götz, Ulrich, Werres, unpublished data).
Recently P. chrysanthemi was detected in the United States on Chrysanthemum x morifolium ‘Aubrey Orange’ and ’Fancy Ursula Orange’ (Lin et al. 2017).

Published
2017-01-22