Ramularia rigidula. [Descriptions of Fungi and Bacteria].

1986 ◽  
Author(s):  
S. Wilson
Keyword(s):  
North America ◽  
Geographical Distribution ◽  
Leaf Spot ◽  
Wind Dispersal ◽  
Polygonum Aviculare

Abstract A description is provided for Ramularia rigidula. Information is included on the disease caused by the organism, its transmission, geographical distribution, and hosts. HOSTS: Polygonum aviculare, P. erectum. DISEASE: Leaf spot of P. aviculare. Lesions frequently found at leaf tip and margin, irregular, rust-brown with dark brown border, sporulation occurs on both sides of leaf. GEOGRAPHICAL DISTRIBUTION: Europe: Austria, France; Asia: USSR; North America: USA (Indiana, Nebraska, Wisconsin). TRANSMISSION: Not known, probably wind dispersal by air-borne spores.

Alternaria cassiae. [Descriptions of Fungi and Bacteria].

1991 ◽  
Author(s):  
J. C. David
Keyword(s):  
South Africa ◽  
North America ◽  
Geographical Distribution ◽  
Leaf Spot ◽  
Wind Dispersal ◽  
Cassia Angustifolia ◽  
Airborne Conidia ◽  
Albizia Procera ◽  
Crotalaria Spectabilis

Abstract A description is provided for Alternaria cassiae. Information is included on the disease caused by the organism, its transmission, geographical distribution, and hosts. HOSTS: Albizia procera, Banhinia purpurea, Cassia angustifolia, C. corymbosa, C. fistula, C. glauca, C. holosericea, C. obtusifolia, C. occidentalis, C. sophora, Crotalaria spectabilis (68, 1563), Rhynchosia sp. DISEASE: Leaf spot of Cassia or sicklepod. The disease can also affect seedlings. GEOGRAPHICAL DISTRIBUTION: Africa: South Africa. North America: USA (Florida). Asia: India, Pakistan. TRANSMISSION: By wind dispersal of airborne conidia.

Ramularia bistortae. [Descriptions of Fungi and Bacteria].

1986 ◽  
Author(s):  
S. Wilson
Keyword(s):  
North America ◽  
Geographical Distribution ◽  
Leaf Spot ◽  
Wind Dispersal ◽  
Brown Centre

Abstract A description is provided for Ramularia bistortae. Information is included on the disease caused by the organism, its transmission, geographical distribution, and hosts. HOSTS: Polygonum bistorta, P. viviparum. DISEASE: Leaf spot of P. bistorta. Lesions on both sides, irregular, often angular or circular, dark purple-brown margin with light brown centre, size varies from 1-8 mm (usually 4-5 mm) diam., sporulation occurs on both sides of leaf. GEOGRAPHICAL DISTRIBUTION: Europe: Austria, England, Germany, Italy, Romania; North America: USA (Wyoming). TRANSMISSION: Not known, probably wind dispersal by air-borne spores.

Alternaria cichorii. [Descriptions of Fungi and Bacteria].

1995 ◽  
Author(s):  
J. C. David
Keyword(s):  
North America ◽  
South America ◽  
Geographical Distribution ◽  
Lactuca Sativa ◽  
Leaf Spot ◽  
Cichorium Intybus ◽  
Western Canada ◽  
Wind Dispersal ◽  
Cichorium Endivia ◽  
Airborne Conidia

Abstract A description is provided for Alternaria cichorii. Information is included on the disease caused by the organism, its transmission, geographical distribution, and hosts. HOSTS: Cichorium endivia L. (Endive); Cichorium intybus L. (Cichory) and Lactuca sativa L. (Lettuce), all members of the tribe Lactuceae (Cichorieae), Asteraceae. It has recently been reported (69, 1978) as occurring on Acroptilion repens, a member of the Cynareae, growing as a weed in western Canada. DISEASE: Leaf spot of Endive and Cichory. GEOGRAPHICAL DISTRIBUTION: Africa: Egypt. North America: Canada, USA (Florida). South America: Argentina (52, 544). Asia: India, New Guinea, Pakistan. Europe: Austria, Cyprus, Denmark, Greece, Italy, Slovenia. TRANSMISSION: By wind dispersal of airborne conidia.

Nimbya gomphrenae. [Descriptions of Fungi and Bacteria].

1991 ◽  
Author(s):  
J. C. David
Keyword(s):  
Hong Kong ◽  
Sri Lanka ◽  
North America ◽  
South America ◽  
Geographical Distribution ◽  
Leaf Spot ◽  
Wind Dispersal ◽  
Gomphrena Globosa ◽  
Airborne Conidia

Abstract A description is provided for Nimbya gomphrenae. Information is included on the disease caused by the organism, its transmission, geographical distribution, and hosts. HOSTS: Gomphrena globosa, Alternanthera denticulata, Ptilotus sp. DISEASE: Leaf spot of Gomphrena. GEOGRAPHICAL DISTRIBUTION: Asia: Burma, Cambodia, Hong Kong, India, Indonesia (Java), Japan, Malaysia (Malaya, Sabah), Nepal, Sri Lanka. Australasia & Oceania: Australia. Central & South America: Cuba, Jamaica, Trinidad. North America: USA. TRANSMISSION: By wind dispersal of airborne conidia.

Ramularia rufomaculans. [Descriptions of Fungi and Bacteria].

1986 ◽  
Author(s):  
S. Wilson
Keyword(s):  
North America ◽  
Geographical Distribution ◽  
Leaf Spot ◽  
Wind Dispersal

Abstract A description is provided for Ramularia rufomaculans. Information is included on the disease caused by the organism, its transmission, geographical distribution, and hosts. HOSTS: Polygonum amphibium, P. aviculare, P. coccineum, P. erectum, P. hydropiper, P. persicaria. DISEASE: Leaf spot of Polygonum spp., lesions on both sides, irregular, rust-brown becoming grey-black, size varies from 2-23 mm (usually 8-10 mm) diam. GEOGRAPHICAL DISTRIBUTION: North America: USA (Washington), Canada (Saskatchewan). TRANSMISSION: Not known, probably wind dispersal by air-borne spores.

Cercospora insulana. [Descriptions of Fungi and Bacteria].

2000 ◽  
Author(s):  
J. C. David
Keyword(s):  
South Africa ◽  
North America ◽  
Central America ◽  
Geographical Distribution ◽  
Leaf Spot ◽  
Wind Dispersal ◽  
Airborne Conidia ◽  
Armeria Maritima

Abstract A description is provided for Cercospora insulana. Information is included on the disease caused by the organism, its transmission, geographical distribution, and hosts. DISEASE: Leaf spot of statice. HOSTS: Armeria maritima, Goniolimon tataricum, Limonium bonduelii, L. brassicifolium, L. gmelinii, L. sinuatum, Psylliostachys × myosuroides (Plumbaginaceae). GEOGRAPHICAL DISTRIBUTION: AFRICA: Kenya, South Africa (CHUPP & DOIDGE, 1948), Tanzania, Zimbabwe. NORTH AMERICA: Canada, USA (Florida). CENTRAL AMERICA: Guatemala. ASIA: Burma, China, Israel, Taiwan, Thailand. EUROPE: Italy, Malta, Russia. TRANSMISSION: By wind dispersal of airborne conidia but also can be seedborne (55: 4147).

Cercospora partheniiphila. [Descriptions of Fungi and Bacteria].

2000 ◽  
Author(s):  
J. C. David
Keyword(s):  
North America ◽  
Dominican Republic ◽  
Central America ◽  
Geographical Distribution ◽  
Leaf Spot ◽  
Parthenium Hysterophorus ◽  
Wind Dispersal ◽  
Airborne Conidia

Abstract A description is provided for Cercospora partheniiphila. Information is included on the disease caused by the organism, its transmission, geographical distribution, and hosts. DISEASE: Leaf spot of parthenium. HOSTS: Parthenium hysterophorus, P. integrifolium (Compositae). GEOGRAPHICAL DISTRIBUTION: NORTH AMERICA: USA (Wisconsin). CENTRAL AMERICA: Cuba, Dominican Republic, Mexico. ASIA: India. TRANSMISSION: By wind dispersal of airborne conidia.

Ramularia astragali. [Descriptions of Fungi and Bacteria].

1986 ◽  
Author(s):  
J. Ingham
Keyword(s):  
North America ◽  
Geographical Distribution ◽  
Leaf Spot ◽  
Wind Dispersal ◽  
Leaf Spots ◽  
Airborne Conidia

Abstract A description is provided for Ramularia astragali. Information is included on the disease caused by the organism, its transmission, geographical distribution, and hosts. HOST: Astragalus carolinianus. DISEASE: Leaf spot of A. carolinianus. The lesions are mainly circular, but occasionally fuse and become irregular. Tufts of conidiophores emerging through the stomata give the leaf spots a frosted appearance. Sporulation is known to occur in July and August. GEOGRAPHICAL DISTRIBUTION: North America (Canada, USA: Dakota). TRANSMISSION: By wind dispersal of airborne conidia.

Ramularia psoraleae. [Descriptions of Fungi and Bacteria].

1986 ◽  
Author(s):  
J. Ingham
Keyword(s):  
North America ◽  
Geographical Distribution ◽  
Leaf Spot ◽  
Leaf Surface ◽  
Wind Dispersal

Abstract A description is provided for Ramularia psoraleae. Information is included on the disease caused by the organism, its transmission, geographical distribution, and hosts. HOST: Psoralea machrostachya. DISEASE: Leaf spot of P. machrostachya. The lesions are mainly circular, sometimes merging to give an irregular appearance. Small tufts of white conidiophores can be seen on either leaf surface, but predominantly on the underside. Sporulation is known to occur in May. GEOGRAPHICAL DISTRIBUTION: North America (USA: California). TRANSMISSION: By wind dispersal of air-borne conidia.

Ramularia rubella. [Descriptions of Fungi and Bacteria].

1986 ◽  
Author(s):  
S. Wilson
Keyword(s):  
New Zealand ◽  
North America ◽  
South America ◽  
Geographical Distribution ◽  
Leaf Spot ◽  
Wind Dispersal ◽  
Rumex Acetosa

Abstract A description is provided for Ramularia rubella. Information is included on the disease caused by the organism, its transmission, geographical distribution, and hosts. HOSTS: Rumex acetosa, R. aquaticus, R. brownii, R. conglomeratus, R. crispus, R. hymenosepalus, R. longifolius, R. nepalensis, R. obtusifolius, R. pulcher, R. stenophyllus. DISEASE: Leaf spot of Rumex spp. Symptoms occur more frequently on older leaves. Spots are apparent on both sides of leaf. Lesions are irregular, frequently angular or circular, brown with a buff centre often having a dark brown or purple border, sometimes coalescent. Size varies from 1-15 mm (mostly 7 mm) diam. Sporulation begins at centre of lesion, conidia in profusion will give a frosted appearance to spots. GEOGRAPHICAL DISTRIBUTION: North America: USA (Arizona, California, Colorado, Ohio, Washington, Wisconsin); South America: Brazil; Europe: Eire, England, Germany, Romania, Sweden, USSR; Africa: Libya; Asia: India, Iraq; Australasia: Australia (Queensland, Tasmania, Victoria), New Zealand. TRANSMISSION: Probably wind dispersal by air-borne spores.

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