EPPO Global Database

Melampsora medusae(MELMME)

Hosts

Categories have been assigned by the EPPO Secretariat on the basis of available data at the time of entry. They correspond to an evaluation of the biological importance of the host plant for the pest concerned, together with the economic importance of this plant for the EPPO region. These categories do not reflect the complexity of the associations that may exist between a host plant and a pest, nor result from exhaustive literature reviews. Further explanation of categories is available in the guide.
Organism Type
Populus balsamifera (POPBA) Major
* Walker J, Hartigan D, Bertus AL (1974) Poplar rusts in Australia with comments on potential conifer rusts. European Journal of Forest Pathology 4, 100-118.
------- confirmed telial host of Melampsora medusae f. sp. deltoidae
Populus deltoides (POPDE) Major
* Ziller WG (1974) The tree rusts of western Canada. Forest Service, British Columbia, Canada, Publications No. 1329, pp. 144-147. Forest Service, British Columbia, Canada.
------- confirmed telial host of Melampsora medusae f. sp. deltoidae 
Populus nigra (POPNI) Major
* Walker J, Hartigan D, Bertus AL (1974) Poplar rusts in Australia with comments on potential conifer rusts. European Journal of Forest Pathology 4, 100-118.
------- confirmed telial host of Melampsora medusae f. sp. deltoidae
Populus tremuloides (POPTM) Major
* Ziller WG (1955) Studies of western tree rusts. II. Melampsora occidentalis and M. albertensis, two needle rusts of Douglas-fir. Canadian Journal of Botany 33, 177-188.
------- Telial host of Melampsora medusae f. sp. tremuloidae
Populus x canadensis (POPCA) Major
* Schipper AL, Dawson DH (1974) Poplar leaf rust - a problem in maximum wood production. Plant Disease Reporter 58, 721-723.
------- confirmed telial host of Melampsora medusae f. sp. deltoidae (as P. deltoides x P. nigra)
Populus x generosa (POPGE) Major
* Van Kraayenoord CWS (1984) National report on activities related to poplar and willow cultivation. International Poplar Commission, XVIIth session, Ottawa
------- confirmed telial host of Melampsora medusae f. sp. deltoidae (as P. trichocarpa x P. deltoides)
Populus (1POPG) Minor
Populus maximowiczii (POPMA) Minor
* Hiratsuka N (1939) Miscellaneous notes on the East Asiatic Uredinales with special reference to the Japanese species (VI). Journal of Japanese Botany 15, 621-627
------- confirmed telial host of Melampsora medusae f. sp. deltoidae
Populus x jackii (POPBS) Minor
* Schipper AL, Dawson DH (1974) Poplar leaf rust - a problem in maximum wood production. Plant Disease Reporter 58, 721-723.
------- confirmed telial host of Melampsora medusae f. sp. deltoidae (as P. deltoides x P. balsamifera)
Larix (1LAXG) Alternate
Larix decidua (LAXDE) Alternate
* Spiers AG (1975) Species of Melampsora infecting conifers in New Zealand. Plant Disease Reporter 59, 486-488.
------- aecial hosts of Melampsora medusae with reported infection in nature
Larix laricina (LAXLA) Alternate
* Ziller WG (1974) The tree rusts of western Canada. Forest Service, British Columbia, Canada, Publications No. 1329, pp. 144-147. Forest Service, British Columbia, Canada.
------- aecial hosts of Melampsora medusae with reported infection in nature
Larix occidentalis (LAXOC) Alternate
* Ziller WG (1974) The tree rusts of western Canada. Forest Service, British Columbia, Canada, Publications No. 1329, pp. 144-147. Forest Service, British Columbia, Canada.
------- aecial hosts of Melampsora medusae with reported infection in nature
Pinus (1PIUG) Alternate
Pinus contorta (PIUCN) Alternate
* Ziller WG (1974) The tree rusts of western Canada. Forest Service, British Columbia, Canada, Publications No. 1329, pp. 144-147. Forest Service, British Columbia, Canada.
------- aecial hosts of Melampsora medusae with reported infection in nature
Pinus ponderosa (PIUPO) Alternate
* Molnar AC, Sivak B (1964) Melampsora infection of pine in British Columbia. Canadian Journal of Botany 42, 145-158.
------- aecial hosts of Melampsora medusae with reported infection in nature
Pseudotsuga menziesii (PSTME) Alternate
* Molnar AC, Sivak B (1964) Melampsora infection of pine in British Columbia. Canadian Journal of Botany 42, 145-158.
------- aecial hosts of Melampsora medusae with reported infection in nature
Populus simonii (POPSM) Unclassified
* Sharma JK, Heather WA (1976) Physiologic specialization in poplar leaf rusts, Melampsora medusae Thum. and M. larici-populina Kleb. in Australia. Proc. XIX Session FAO/IPC Working Party on Poplar Diseases. France.
------- confirmed telial host of Melampsora medusae f. sp. deltoidae

* Zheng W, Newcombe G, Hu D, Cao Z, Yu Z & Peng Z (2019). The First Record of a North American Poplar Leaf Rust Fungus, Melampsora medusae, in China. Forests, 10(2), 182. https://doi.org/10.3390/f10020182
------- new host in China

Populus szechuanica (POPSZ) Unclassified
* Zheng W, Newcombe G, Hu D, Cao Z, Yu Z & Peng Z (2019). The First Record of a North American Poplar Leaf Rust Fungus, Melampsora medusae, in China. Forests, 10(2), 182. https://doi.org/10.3390/f10020182
------- new host in China
Populus yunnanensis (POPYU) Unclassified
* Zheng W, Newcombe G, Hu D, Cao Z, Yu Z & Peng Z (2019). The First Record of a North American Poplar Leaf Rust Fungus, Melampsora medusae, in China. Forests, 10(2), 182. https://doi.org/10.3390/f10020182
------- new host in China
Populus mexicana (POPMX) Incidental
* Lloyd AL, Smith JA (2018) First report of poplar leaf rust caused by Melampsora medusae on Populus mexicana in the United States. Plant Disease 102(10), 2031-2033.
------- On Populus mexicana subsp. dimorpha in Florida (US), also reported earlier on P. mexicana in Mexico.
Abies (1ABIG) Artificial
* Pinon J (1986) Situation de Melampsora medusae en Europe. Bulletin OEPP/EPPO Bulletin 16, 547-551.
------- infection reported after following inoculation studies.
Picea (1PIEG) Artificial
* Pinon J (1986) Situation de Melampsora medusae en Europe. Bulletin OEPP/EPPO Bulletin 16, 547-551.
------- infection reported after following inoculation studies.
Picea sitchensis (PIESI) Artificial
* Pinon J (1986) Situation de Melampsora medusae en Europe. Bulletin OEPP/EPPO Bulletin 16, 547-551.
------- infection reported after following inoculation studies.
Tsuga (1TSUG) Artificial
* Pinon J (1986) Situation de Melampsora medusae en Europe. Bulletin OEPP/EPPO Bulletin 16, 547-551.
------- infection reported after following inoculation studies.
Tsuga mertensiana (TSUME) Artificial
* Pinon J (1986) Situation de Melampsora medusae en Europe. Bulletin OEPP/EPPO Bulletin 16, 547-551.
------- infection reported after following inoculation studies.