ORIGINAL ARTICLE
Phytophthora cryptogea and P. citrophthora; new pathogens of Forsythia intermedia in polish ornamental hardy nursery stocks
 
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Research Institute of Pomology and Floriculture Pomologiczna 18, 96-100 Skierniewice
CORRESPONDING AUTHOR
Leszek B. Orlikowski
Research Institute of Pomology and Floriculture Pomologiczna 18, 96-100 Skierniewice
 
Journal of Plant Protection Research 2008;48(4):495–501
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ABSTRACT
Phytophthora cryptogea and Phytophthora citrophthora were isolated from rotted stem base of Forsythia intermedia cv. Minigold and from substratum, respectively. Additionally Botrytis cinerea and Fusarium spp. were often isolated from diseased tissues. In the laboratory trials P. cryptogea from F. intermedia colonised and incited disease of leaf blades and stem parts of all tested cultivars.The species caused necrosis development of leaves and stem of Ligustrum vulgare, Sambucus nigra and Syringa vulgaris after 3 days of inoculation. The isolates from 7 different host plants colonised (except from Sempervivum arachnoideum) leaves and stem parts of F. intermedia cv. Minigold with the fastest spread of necrosis on plant parts inoculated with isolate from forsythia. P. citrophthora from substratum colonised leaves and stem parts of 5 tested cultivars with the quickest spread of necrosis on cv. Goldzauber and Spectabilis.
CONFLICT OF INTEREST
The authors have declared that no conflict of interests exist.
 
REFERENCES (13)
1.
Cacciola S.O., Belisario A., Pane A., Magnano di San Lio G. 1994. Forsythia: A new host of Phytophthora nicotianae in Italy. Plant Dis. 78: 525–528.
 
2.
Daughtery M.L., von Broembsen S. 2001. Forsythia diseases. p. 168–170. In “Diseases of Woody Ornamentals and Trees in Nurseries (R.K. Jones, D.M. Benson). APS Press, St. Paul, Minnesota.
 
3.
Hong C.X., Richardson P.A., Kong P. 2005. Shoot blight of Forsythia intermedia in Virginia nurseries caused by Phytophthora nicotianae. Plant Dis. 89, p. 430.
 
4.
Moorman G. 2007. Phytophthora root rot. Online. http://www.ppath.cas.psu.edu/E....
 
5.
Orlikowski L.B. 1978: The occurrence of Phytophthora cryptogea Pethybr. et Laff. in gerbera (Gerbera jamesonii Bolus) growing sites. Bull. Pol. Ascad. Sci. 26: 495–498.
 
6.
Orlikowski L.B. 1996. Phytophthora stem rot of Pelargonium. Phytopathol. Pol. 12: 79–86.
 
7.
Orlikowski L.B., Gabarkiewicz R., Skrzypczak Cz. 1995. Phytophthora species in Polish ornamental nurseries. I. Isolation and identification of Phytophthora species. Phytopathol. Pol. 9: 73–79.
 
8.
Orlikowski L.B., Ptaszek M. 2007. Phytophthora spp. in Polish ornamental nurseries.I. perennial plants, new hosts of P. cryptogea. J. Plant Prot. Res. 47(4): 401–408.
 
9.
Orlikowski L.B., Szkuta G. 2005: Occurrence of Phytophthora citrophthora on Syringa vulgaris in Poland. Acta Mycol. 40 (2): 175–180.
 
10.
Orlikowski L.B., Trzewik A., Wiejacha K. 2006: Phytophthora tropicalis, a new pathogen of ornamental plants in Poland. J. Plant Prot. Res. 46: 103–109.
 
11.
Szkuta G. 2004. Występowanie, izolacja identyfikacja i szkodliwość gatunków z rodzaju Phytophthora w szkółkach roślin iglastych. Praca doktorska, AR Kraków, 191 pp.
 
12.
Vegh I. 1987. Champignons des arbustes et arbustes d’ornament. INRA, Paris, p. 26.
 
13.
Vegh I., Bourgeois M. 1976. Le deperissement des arbustes d’ornament provoque par des Phytophthora, principalement P. cinnamomi. J. d’etude sur les cultures en conteneurs, Paris, 8.01.1976: 35–62.
 
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