Mycosphaerella macrospora. [Descriptions of Fungi and Bacteria].

1974 ◽  
Author(s):  
M. B. Ellis
Keyword(s):  
South Africa ◽  
North America ◽  
Middle East ◽  
Geographical Distribution ◽  
Leaf Spot ◽  
Leaf Tissue ◽  
Infected Leaf ◽  
Perfect State ◽  
Small Water ◽  
America South

Abstract A description is provided for Mycosphaerella macrospora. Information is included on the disease caused by the organism, its transmission, geographical distribution, and hosts. HOSTS: Iris, Glodiolus; also recorded from Narcissus, Freesia and Hemerocallis. DISEASE: Leaf spot or blotch of iris. Initially, symptoms appear as small water-soaked spots soon turning brown and enlarging to produce oval lesions with a greyish centre and dark brown margin. These become irregular and coalesce and may destroy much of the leaf tissue. The disease is most serious after flowering and on the distal portions of leaves. GEOGRAPHICAL DISTRIBUTION: Europe, North America, South Africa, Australia and Middle East. TRANSMISSION: Conidia are dispersed by wind and rain. Overwintering infected leaf debris is an important source of spring inoculum. The perfect state appears to be uncommon.

Drechslera dematioidea. [Descriptions of Fungi and Bacteria].

1990 ◽  
Author(s):  
A. Sivanesan
Keyword(s):  
South Africa ◽  
New Zealand ◽  
North America ◽  
Geographical Distribution ◽  
Leaf Spot ◽  
America South

Abstract A description is provided for Drechslera dematioidea. Information is included on the disease caused by the organism, its transmission, geographical distribution, and hosts. HOSTS: Agrostis, Anthoxanthum, Avena, Cynodon, Dactylis, Eragrostis, Festuca, Hordeum, Lolium, Paspalum, Phleum and Triticum. Also isolated from Iris, Leucospermum, Pinus and Pseudotsuga. DISEASE: Leaf spot of grasses and blight of pincushions. GEOGRAPHICAL DISTRIBUTION: Australia, Europe, New Zealand, North America, South Africa (26, 172; 34, 324, 711; 55, 2077; 65, 4975; 66, 1395). TRANSMISSION: By wind-borne conidia, seed-borne.

Diplocarpon earliana. [Descriptions of Fungi and Bacteria].

1976 ◽  
Author(s):  
A. Sivanesan
Keyword(s):  
South Africa ◽  
Hong Kong ◽  
North America ◽  
South America ◽  
Eastern Europe ◽  
Geographical Distribution ◽  
Canary Islands ◽  
Perfect State ◽  
Splash Dispersal ◽  
The Tropics

Abstract A description is provided for Diplocarpon earliana. Information is included on the disease caused by the organism, its transmission, geographical distribution, and hosts. HOST: Fragaria. DISEASE: Strawberry leaf scorch. GEOGRAPHICAL DISTRIBUTION: Throughout temperate zones and extending into the tropics in Malaysia, Taiwan, Australia and New Guinea; Africa (Rhodesia, Zambia, South Africa, Canary Islands); Europe (except Ireland, Spain, Sweden, Russia); North America (Canada, USA, Jamaica); South America (Brazil, Uruguay); Asia (Armenia, Cambodia, Hong Kong, India, Israel, Japan, W. Malaysia). Appears to be most important in USA and eastern Europe (CMI Map 452, ed. 1, 1969). TRANSMISSION: Mainly by splash dispersal of conidia from infected leaves. Ascospores appear to be unimportant and in some regions (Poland; 46, 2074) where the perfect state has not been found.

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.

Ramulispora sorghicola. [Descriptions of Fungi and Bacteria].

1978 ◽  
Author(s):  
K. H. Anahosur
Keyword(s):  
Sorghum Bicolor ◽  
Geographical Distribution ◽  
Wild Species ◽  
Leaf Spot ◽  
Lower Surface ◽  
Infected Leaf ◽  
Small Water ◽  
Leaf Tissues ◽  
Upper Volta

Abstract A description is provided for Ramulispora sorghicola. Information is included on the disease caused by the organism, its transmission, geographical distribution, and hosts. HOSTS: On Sorghum bicolor, S. halepense, S. nitidum, S. vulgare, Sorghum spp. (wild). DISEASE: Leaf spot. Small water-soaked lesions develop into oval to elliptical spots up to 7 × 3 mm, delimited by veins, with dark red or tan border up to 1 mm wide. Spots become irregular by 2-3 spots coalescing, with pinkish grey to straw necrotic centres. A few black sclerotia are found on the lower surface of roots. GEOGRAPHICAL DISTRIBUTION: Africa (Ethiopia, Nigeria, Malawi, Upper Volta); Asia (India, Indonesia, Pakistan). TRANSMISSION: The fungus can survive in the fragments of infected leaf tissues which remain on the ground and produce masses of conidia in damp weather which are disseminated by rain and wind. Sclerotia also survive and produce conidia in damp weather (Harris, 1960; Tarr, 1962). Wild species of sorghum act as collateral hosts.

Pseudocercospora abelmoschi. [Descriptions of Fungi and Bacteria].

1980 ◽  
Author(s):  
P. M. Kirk
Keyword(s):  
North America ◽  
Middle East ◽  
South America ◽  
Sierra Leone ◽  
Geographical Distribution ◽  
Leaf Spot ◽  
West Indies ◽  
East Indies ◽  
New Hebrides

Abstract A description is provided for Pseudocercospora abelmoschi. Information is included on the disease caused by the organism, its transmission, geographical distribution, and hosts. HOSTS: On species of Hibiscus, especially H. esculentus. DISEASE: Causes a leaf spot or blight on Hibiscus spp. GEOGRAPHICAL DISTRIBUTION: Africa (Gabon, Ghana, Guinea, Kenya, Malawi, Nigeria, Sierra Leone, Sudan, Tanzania, Togo, Uganda), Asia (Burma, India, Nepal, Pakistan), East Indies (Brunei, Malaya, New Hebrides, Philippines, Sarawak, Taiwan), Middle East (Yemen), Europe (Italy: San Domingo), North America (USA), West Indies (Antigua, Grenada, Jamaica, St. Vincent, Trinidad), South America (Venezuela). TRANSMISSION: By air-borne conidia.

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).

Cladosporium echinulatum. [Descriptions of Fungi and Bacteria].

1988 ◽  
Author(s):  
J. C. David
Keyword(s):  
South Africa ◽  
New York ◽  
British Columbia ◽  
New Zealand ◽  
North America ◽  
South America ◽  
El Salvador ◽  
Geographical Distribution ◽  
Leaf Spot ◽  
West Germany

Abstract A description is provided for Cladosporium echinulatum. Information is included on the disease caused by the organism, its transmission, geographical distribution, and hosts. HOSTS: Dianthus spp., occasionally also on other similar members of the Caryophyllaceae, such as Lychnis and Saponaria. DISEASE: Leaf spot of carnation. GEOGRAPHICAL DISTRIBUTION: Africa: Kenya, Morocco, South Africa, Uganda. Asia: Cyprus, India, Iran, Japan Turkey. Australasia: New Zealand. Europe: Austria, Belgium, Bulgaria, Czechoslovakia, England, Finland, Italy, Iceland, Norway, Romania, Spain, Sweden, Switzerland, West Germany, Yugoslavia. North America: Canada (British Columbia), El Salvador, Mexico, USA (California, Florida, Massachusetts, New York, Oregon, Texas). South America: Argentina, Brazil, Chile, Columbia, Peru. TRANSMISSION: Conidia are dispersed by wind or rain, spreading from leaf to leaf, or to new plants.

Vizella interrupta. [Descriptions of Fungi and Bacteria].

1998 ◽  
Author(s):  
J. E. Taylor
Keyword(s):  
South Africa ◽  
Geographical Distribution ◽  
Leaf Spot ◽  
Leaf Tissue

Abstract A description is provided for Vizella interrupta. Information is included on the disease caused by the organism, its transmission, geographical distribution, and hosts. HOSTS: Banksiae integrifoliae, B. serrulata, Grevilleae aquifoliae, Grevellieae sp., Hakea crassifolia, Isopogon anemonifolius, Leucospermum conocarpodendron, L. cordifolium, Leucadendron discolor, L. gandogeri, L. laureolum, Leucadendron spp., Protea cynaroides, P. grandiceps, P. lepidocarpodendron, P. magnifica, P. neriifolia, P. nitida, Protea spp. DISEASE: Leaf spot which can vary in appearance on different hosts, ranging from ascomata scattered randomly or arranged concentrically on the slightly discoloured leaf tissue. GEOGRAPHICAL DISTRIBUTION: South Africa, Australia. TRANSMISSION: Wind borne.

Taphrina wiesneri. [Descriptions of Fungi and Bacteria].

1981 ◽  
Author(s):  
C. Booth
Keyword(s):  
South Africa ◽  
New Zealand ◽  
North America ◽  
South America ◽  
Geographical Distribution ◽  
Infected Tissue ◽  
Purple Colour ◽  
America South ◽  
Leaf Curl

Abstract A description is provided for Taphrina wiesneri. Information is included on the disease caused by the organism, its transmission, geographical distribution, and hosts. HOSTS: cherry, apricot. DISEASE: Witches' broom and leaf curl of cherry and apricot (58, 1402). Also known as buckwood or bull-bough. The reddish to reddish-purple colour of the infected leaves together with the witches' broom type of growth are characteristic of the disease. GEOGRAPHICAL DISTRIBUTION: Australia, New Zealand, South Africa, Japan, Asia, Europe (including Russia; 58, 1402). North America, South America (CMI map 199, ed. 2, 1967). TRANSMISSION: By blastosporic conidia or ascospores from infected tissue. Over-wintering on bud scales and in infected wood.

Fusicladium effusum. [Descriptions of Fungi and Bacteria].

2002 ◽  
Author(s):  
K. Schubert
Keyword(s):  
South Africa ◽  
North Carolina ◽  
New Zealand ◽  
North America ◽  
South America ◽  
Central America ◽  
Geographical Distribution ◽  
Leaf Spot ◽  
Airborne Conidia ◽  
Pecan Scab

Abstract A description is provided for Fusicladium effusum. Information is included on the disease caused by the organism, its transmission, geographical distribution, and hosts. DISEASE: Leaf spot, pecan scab. HOSTS: Carya spp. (Juglandaceae), including C. aquatica, C. cordiformis, C. glabra, C. illinoensis, C. ovata and C. tomentosa. GEOGRAPHICAL DISTRIBUTION: AFRICA: South Africa. NORTH AMERICA: Canada, USA (Alabama (NESBITT et al., 1997), Florida, Georgia, Illinois, Louisiana, Kansas, Missouri, Oklahoma, North Carolina, Texas, Wisconsin). CENTRAL AMERICA: Mexico (GARZA-LOPEZ et al., 1996). SOUTH AMERICA: Brazil (MENDES et al., 1998), Paraguay (KOBAYASHI, 1984). AUSTRALASIA: New Zealand (North Island). TRANSMISSION: By airborne conidia (GOTTWALD & BERTRAND, 1982).

Sign in / Sign up

Export Citation Format

Share Document