Diplocarpon rosae F.A. Wolf 1912

Caption:

Details

Name scientific

Diplocarpon rosae F.A. Wolf, Bot. Gaz. (Crawfordsville) 54 231 (1912)

Preferred name

Diplocarpon rosae F.A. Wolf 1912

Biostatus

Origin

Occurrence

Georegion

Schema

Biostatus source

Comment

Exotic

Present

New Zealand

Political Region

Anon

Nomenclature

Authors

F.A. Wolf

Original authors

F.A. Wolf

Publication place

Wolf, F.A. 1912: Botanical Gazette 54

Year published

1912

Publication page

231

Nomenclatural code

ICN

Basionym

Diplocarpon rosae F.A. Wolf 1912

Taxonomic rank

species

Canonical form

Diplocarpon rosae

Classification

Kingdom

Fungi

Phylum

Ascomycota

Class

Leotiomycetes

Order

Helotiales

Family

Drepanopezizaceae

Genus

Diplocarpon

Species

rosae

Synonyms

Associations

View full associations record

Association type

Associated organism

Association source

has host

Rosa rugosa × foliolosa

Anonymous (2005)

has host

Rosa

Dingley, J.M. (1969)

has host

Rosa

Kirk, T.W. (1901)

has host

Rosa

Kirk, T.W. (1905)

has host

Rosa rubiginosa L.

McKenzie, E.H.C. (1990)

has host

Rosa

McKenzie, E.H.C. (1991)

has host

Rosa

Pennycook, S.R. (1989)

has host

Rosa

Gadgil, P.D. (in association with Dick, M.A.; Hood, I.A.; Pennycook, S.R.) (2005)

has host

Rosa

PDD (12 records from [Not available].)

has host

Rosa arvensis

PDD (1 records from [Not available].)

has host

Rosa canina L.

PDD (1 records from [Not available].)

has host

Rosa rubiginosa L.

PDD (4 records from [Not available].)

Descriptions

Dingley, J.M. 1969: Records of plant diseases in New Zealand. New Zealand Department of Scientific and Industrial Research, Bulletin. 192.

Diplocarpon rosae F.A. Wolf 1912

Notes

Black spot on roses is a common disease throughout the country (Ellis (1952a); Marcussen (1962); and Amos (1963) ). Heavy infection causing considerable defoliation in summer seriously weakens the plants. The disease is important in commercial plantings. Sprays of captan and folpex have been recommended for control of this disease.

Gadgil, P.D. (in association with Dick, M.A.; Hood, I.A.; Pennycook, S.R.) 2005: Fungi on trees and shrubs in New Zealand. Fungi of New Zealand. 4. Fungal Diversity Press.

Marssonina rosae (Lib.) Died. 1915

Description

Type: Foliicolous Fungi; Description: Conidiomata acervular, scattered, subcuticular, erumpent, oval to elliptical, brown; on circular dark brown to black leaf spots with ragged margins, up to 15 mm in diameter, on upper surfaces of leaves. The black colour is due to a dense subcuticular network of dark hyphae. Conidia oval to elliptical, 1-septate, 20–25 × 5–6 μm, smooth, hyaline.

Distribution

Distribution: Auckland, Waikato, Bay of Plenty, Taranaki, Taupo, Wanganui, Wellington, Nelson, North Canterbury, Mid Canterbury, Chatham Islands.; 1st Record: Kirk (1901: as ‘black spot’).

Notes

Pathogenicity

Significance: The cause of ‘black spot’ of roses, recorded by Dingley (1969) as a common disease throughout the country. Heavy infection causes considerable defoliation, seriously weakening the plants. In all except very dry areas, fungicidal control is usually necessary.; Host(s): Rosa spp.