Acidovorax anthurii. [Descriptions of Fungi and Bacteria].

2000 ◽  
Author(s):  
G. S. Saddler
Keyword(s):  
Central America ◽  
Geographical Distribution ◽  
Leaf Spot ◽  
Artificial Inoculation ◽  
Anthurium Andreanum

Abstract A description is provided for Acidovorax anthurii. Information is included on the disease caused by the organism, its transmission, geographical distribution, and hosts. HOSTS: Anthurium andreanum, A. martinicense (Araceae;) by artificial inoculation: Dieffenbachia seguine (Araceae). DISEASE: Leaf spot of anthurium. Initially symptoms develop as necrotic lesions close to veins and leaf margins, which are frequently water-soaked and chlorotic. With age lesions blacken and turn grey. From the lesions, bacteria enter the leaf and spathe parenchyma and become systemic, resulting in tissue discoloration and ultimately death. Cover illustration shows symptoms on leaf. GEOGRAPHICAL DISTRIBUTION: CENTRAL AMERICA: Guadeloupe, Martinique, Trinidad & Tobago. TRANSMISSION: Unknown. Symptoms can develop by misting susceptible plants with bacterial suspensions or soil drenching (PRIOR & ROTT, 1989).

Diaporthe manihotis. [Descriptions of Fungi and Bacteria].

1982 ◽  
Author(s):  
E. Punithalingam
Keyword(s):  
South America ◽  
Central America ◽  
Geographical Distribution ◽  
Leaf Spot ◽  
Manihot Esculenta ◽  
West Indies ◽  
Severe Attack ◽  
Early Stages ◽  
Young Leaves ◽  
Pale Green

Abstract A description is provided for Diaporthe manihotis. Information is included on the disease caused by the organism, its transmission, geographical distribution, and hosts. HOST: Manihot esculenta. DISEASE: Leaf spot of cassava (46, 64) or sometimes referred to as Phomopsis blight of tapioca (54, 2588). In the early stages of infection the visible symptoms are pale green, watersoaked, small round spots on young leaves and petioles which rapidly enlarge and turn brown. Severe attack leads to defoliation and infection spreading to the stem. Affected areas become shrivelled with numerous pycnidia embedded in the tissue. On severely infected stems the bark starts to peel off gradually leading to partial or total girdling. GEOGRAPHICAL DISTRIBUTION: Africa (Ethiopia, Nigeria); Asia (India); Central America and West Indies (S.E. Dominica); South America (Colombia). TRANSMISSION: Probably by watersplash-dispersed conidia.

Cercospora parthenii. [Descriptions of Fungi and Bacteria].

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

Abstract A description is provided for Cercospora parthenii. Information is included on the disease caused by the organism, its transmission, geographical distribution, and hosts. DISEASE: Leaf spot of parthenium. HOSTS: Parthenium hysterophorus (Compositae). GEOGRAPHICAL DISTRIBUTION: CENTRAL AMERICA: Cuba, Dominican Republic, Trinidad. SOUTH AMERICA: Venezuela. TRANSMISSION: By wind dispersal of airborne conidia.

Mycosphaerella aleuritis. [Descriptions of Fungi and Bacteria].

1990 ◽  
Author(s):  
A. Sivanesan
Keyword(s):  
Hong Kong ◽  
North America ◽  
South America ◽  
Central America ◽  
Geographical Distribution ◽  
Leaf Spot ◽  
Central African Republic ◽  
Angular Leaf Spot ◽  
Distribution Map ◽  
Rain Splash

Abstract A description is provided for Mycosphaerella aleuritis. Information is included on the disease caused by the organism, its transmission, geographical distribution, and hosts. HOST: Aleurites fordii, A. mollucana, A. montana. DISEASE: Angular leaf spot of tung. GEOGRAPHICAL DISTRIBUTION: Africa: Central African Republic, Malagasy Republic, Malawi, Zaire (probably also Cameroon, Chad, Congo, Gabon). Asia: China, Hong Kong, Japan, Korea, Malaysia, Taiwan. Central America & Caribbean: Cuba, Trinidad. North America: USA. South America: Argentina, Brazil, Paraguay? (CMI Distribution Map 278, ed. 3, 1975). TRANSMISSION: By ascospores and conidia, which are mainly dispersed by rain-splash and wind (45, 1989f).

Pseudomonas lachrymans. [Descriptions of Fungi and Bacteria].

1967 ◽  
Author(s):  
J. F. Bradbury
Keyword(s):  
Central America ◽  
Cucumis Sativus ◽  
Geographical Distribution ◽  
Southern Africa ◽  
Leaf Spot ◽  
Crop Residue ◽  
Fruit Rot ◽  
Small Water ◽  
Rain Splash ◽  
Pseudomonas Lachrymans

Abstract A description is provided for Pseudomonas lachrymans. Information is included on the disease caused by the organism, its transmission, geographical distribution, and hosts. HOSTS: On Cucumis sativus and C. anguria. It may also attack C. melo var. inodorus (26: 140) and some other cucurbits. Elliott (31: 105) lists 10 hosts, all in the Cucurbitaceae. DISEASE: Angular leaf spot of cucumber. Small water-soaked spots appear on the leaves, petioles, stems, and fruits. On leaves they enlarge and become angular as they are delimited by veins They become tan to brown and the necrotic centres may fall out. On petioles, stems, and fruit spots develop white crusty bactenal exudate. A fruit rot develops if the bacteria penetrate deeply. GEOGRAPHICAL DISTRIBUTION: North and parts of Central America, most of Europe, U.S.S.R., China, Japan, W. Australia, Israel, southern Africa. (CMI Map 355, ed. 2, 1964). TRANSMISSION: The pathogen is seed-borne and infects the cotyledons dunng germination. It can overwinter on infected crop residue in the soil and has been found viable in dry leaf matenal after two and a half years (36: 677). The bacteria are carried from plant to plant within a crop by rain splash and probably by insects (Carsner, 1918; 31: 272). Workers can also spread the disease, particularly when foliage is wet with rain or dew (35: 810).

Stemphylium lycopersici. [Descriptions of Fungi and Bacteria].

1975 ◽  
Author(s):  
M. B. Ellis
Keyword(s):  
Hong Kong ◽  
Central America ◽  
Geographical Distribution ◽  
Leaf Spot ◽  
Leaf Blight ◽  
Agar Culture ◽  
Grey Leaf Spot ◽  
Stemphylium Lycopersici

Abstract A description is provided for Stemphylium lycopersici. Information is included on the disease caused by the organism, its transmission, geographical distribution, and hosts. HOSTS: On Lycopersicon most commonly but also found on Allium, Carthamus, Gladiolus and other plants. DISEASE: Stemphylium leaf blight of tomato, petal blight of carnation. The fungus forms necrotic lesions, closely resembling those of grey leaf spot (S. solani), on foliage and floral parts in which conidia are borne in later stages of infection. Relatively severe attacks have been recorded on chrysanthemum in Canada (41, 309; 46, 3384) and tomato in Israel (53, 2683). GEOGRAPHICAL DISTRIBUTION: Asia (Arabia, Israel, Malaysia (W. and Sarawak), India, Hong Kong, Yemen); Africa (Kenya); N. America (USA, Canada); S. America (Venezuela); Central America and W. Indies (Cuba); Australasia and Oceania (Tahiti). TRANSMISSION: By air-borne conidia. Conidia have been shown to survive in dried plant refuse for 4 months and in dried agar culture for 8 months (Hannon & Weber, 1955).

Mycosphaerella caricae. [Descriptions of Fungi and Bacteria].

1990 ◽  
Author(s):  
A. Sivanesan
Keyword(s):  
South America ◽  
Central America ◽  
Papua New Guinea ◽  
Geographical Distribution ◽  
Leaf Spot ◽  
West Indies ◽  
Carica Papaya ◽  
Fruit Rot ◽  
Stem Rot ◽  
Water Splash

Abstract A description is provided for Mycosphaerella caricae. Information is included on the disease caused by the organism, its transmission, geographical distribution, and hosts. HOST: Carica papaya. DISEASE: Fruit rot, leaf spot and stem rot of pawpaw. GEOGRAPHICAL DISTRIBUTION: Africa: Ethiopia, Ghana, Kenya, Mauritius, Nigeria, Sudan, Tanzania, Togo, Uganda, Zambia, Zimbabwe. Asia: Burma, India, Indonesia, Malaysia, Nepal, Philippines, Sri Lanka, Thailand. Australasia & Oceania: Australia, USA (Hawaii), Papua New Guinea, West Irian. Central America & West Indies: Cuba, Honduras, Mexico. South America: Bolivia, Brazil, Ecuador. TRANSMISSION: Presumably by windborne ascospores and conidia, by water splash and contact through natural wounds.

Phaeoisariopsis simulata. [Descriptions of Fungi and Bacteria].

1986 ◽  
Author(s):  
P. M. Kirk
Keyword(s):  
Puerto Rico ◽  
North America ◽  
South America ◽  
Central America ◽  
Geographical Distribution ◽  
Leaf Spot ◽  
West Indies ◽  
Survival Mechanisms

Abstract A description is provided for Phaeoisariopsis simulata. Information is included on the disease caused by the organism, its transmission, geographical distribution, and hosts. HOSTS: Species of Cassia including C. marylandica (American senna). DISEASE: Leaf spot. GEOGRAPHICAL DISTRIBUTION: Africa (Tanzania), North America (U.S.A. (IL, KS, MA, AR)), Central America & West Indies (Puerto Rico), South America (Venezuela). TRANSMISSION: Presumably by air borne conidia. Survival mechanisms unknown.

Phomopsis elaeidis. [Descriptions of Fungi and Bacteria].

1993 ◽  
Author(s):  
E. Punithalingam
Keyword(s):  
South America ◽  
Central America ◽  
Geographical Distribution ◽  
Oil Palm ◽  
Leaf Spot ◽  
Elaeis Guineensis ◽  
Central Area ◽  
Northern Territory ◽  
Mode Of Entry ◽  
East Malaysia

Abstract A description is provided for Phomopsis elaeidis. Information is included on the disease caused by the organism, its transmission, geographical distribution, and hosts. HOST: Elaeis guineensis (oil palm) (Palmae). DISEASE: Leaf spot of oil palm. Lesions elliptical to irregular, light brown with a paler central area. The fungus has also been isolated from roots and seeds. GEOGRAPHICAL DISTRIBUTION: Africa (Guinea, Nigeria, Tanzania, Zaire); Asia (India including Andaman Is., Sabah, East Malaysia); Australasia & Oceania (Australia: Northern Territory; Solomon Is.); Central America (Dominica); South America (Ecuador). TRANSMISSION: Most probably by water and debris in the soil. The mode of entry and spread of the disease have not been investigated.

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.

Sign in / Sign up

Export Citation Format

Share Document