Mycosphaerella populi. [Descriptions of Fungi and Bacteria].

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

Abstract A description is provided for Mycosphaerella populi. Information is included on the disease caused by the organism, its transmission, geographical distribution, and hosts. HOSTS: Populus spp. DISEASE: Leaf spot of poplar. GEOGRAPHICAL DISTRIBUTION: Asia: Iran. Europe: Austria(?), Czechoslovakia, Italy, Spain, USSR. South America: Argentina. FRANSMISSION: Presumably by windborne ascospores and conidia.

Mycosphaerella populorum. [Descriptions of Fungi and Bacteria].

1990 ◽  
Author(s):  
A. Sivanesan
Keyword(s):  
North America ◽  
South America ◽  
Geographical Distribution ◽  
Leaf Spot ◽  
Leaf Spot Disease ◽  
Distribution Map ◽  
Spot Disease ◽  
Mycosphaerella Populorum

Abstract A description is provided for Mycosphaerella populorum. Information is included on the disease caused by the organism, its transmission, geographical distribution, and hosts. HOSTS: Populus spp. DISEASE: Septoria canker, leaf spot disease. GEOGRAPHICAL DISTRIBUTION: North America: USA (east and central states). South America: Argentina (CMI Distribution Map 540, 1981). TRANSMISSION: By windborne conidia and ascospores.

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.

Passalora bupleuri. [Descriptions of Fungi and Bacteria].

2014 ◽  
Author(s):  
T. V. Andrianova
Keyword(s):  
South America ◽  
Geographical Distribution ◽  
Leaf Spot ◽  
West Bengal ◽  
Conservation Status ◽  
Voronezh Oblast ◽  
Belgorod Oblast ◽  
Tver Oblast ◽  
Stavropol Krai

Abstract A description is provided for Passalora bupleuri, a colonizer of living leaves, causing mild leaf spot symptoms and further leaf fading and drying, probably hastening leaf death. Some information on its habitat, dispersal and transmission, and conservation status is given, along with details of its geographical distribution (South America (Chile), Asia (Armenia, Azerbaijan, Georgia, India (Orissa and West Bengal), Kazakhstan, Kyrgyzstan, Russia (Kamchatka oblast, Primorye krai) and Uzbekistan), Caribbean (Cuba) and Europe (Bulgaria, Estonia, Germany, Italy, Latvia, Lithuania, Poland, Romania, Russia (Belgorod oblast, Kabardino-Balkaria Republic, Leningradskaya oblast, Lipetsk oblast, Stavropol krai, Tver oblast, Voronezh oblast), Slovakia, Spain and Ukraine)) and hosts (including Bupleurum tenuissimum).

Cercospora pappaea. [Descriptions of Fungi and Bacteria].

1987 ◽  
Author(s):  
S. Little
Keyword(s):  
South America ◽  
Papua New Guinea ◽  
Geographical Distribution ◽  
Leaf Spot ◽  
New Guinea ◽  
Leaf Spots ◽  
Fruit Decay

Abstract A description is provided for Cercospora pappaea. Information is included on the disease caused by the organism, its transmission, geographical distribution, and hosts. HOSTS: Caricapappaea (pawpaw). DISEASE: Leaf spot of pawpaw. Leaf spots are circular at first, but become irregular with age, 3-10 mm diam., pale brown on the upper surface, indistinct on the lower. The fungus may also cause small shallow black dots on the fruit; these lesions may enlarge up to 3 mm, but do not cause fruit decay (Weber 1973). GEOGRAPHICAL DISTRIBUTION: Africa: Mauritius, Malawi, Sudan Uganda, Asia: Burma, India Indonesia, Nepal; Australasia and Oceania: Papua New Guinea, Tonga; South America: Venezuela.

Phyllachora dalbergiae. [Descriptions of Fungi and Bacteria].

1986 ◽  
Author(s):  
P. F. Cannon
Keyword(s):  
Growth Rate ◽  
South America ◽  
Geographical Distribution ◽  
Leaf Spot ◽  
Host Genus ◽  
Wind Currents

Abstract A description is provided for Phyllachora dalbergiae. Information is included on the disease caused by the organism, its transmission, geographical distribution, and hosts. HOSTS: Known from Dalbergia ferruginea, D. latifolia, D. nitidula, D. sissoo, D. stipulacea and D. variabilis. DISEASE: Causes a leaf spot of Dalbergia species. No research into the epidemiology or virulence of this disease has been carried out, but as the host genus is prominent and widespread it seems unlikely that serious damage is caused. In cases where the fungus is well established on the host, however, significant retardation of the growth rate must result. GEOGRAPHICAL DISTRIBUTION: Africa: Tanzania, Zimbabwe. Asia: Burma, India, Philippines. South America: Brazil. TRANSMISSION: This has not been studied, but it almost certainly occurs through the air-borne dispersal of ascospores in wind currents, which then directly infect the host leaves.

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).

Entyloma calendulae. [Descriptions of Fungi and Bacteria].

1984 ◽  
Author(s):  
J. E. M. Mordue
Keyword(s):  
New Zealand ◽  
North America ◽  
South America ◽  
Geographical Distribution ◽  
Leaf Spot ◽  
New South ◽  
Infected Plant ◽  
South Wales ◽  
Plant Remains ◽  
New Crop

Abstract A description is provided for Entyloma calendulae. Information is included on the disease caused by the organism, its transmission, geographical distribution, and hosts. HOSTS: Calendula officinarum, also C. aegyptiaca, C. algeriensis, C. arvensis, C. persica. DISEASE: Leaf spot of Calendula. GEOGRAPHICAL DISTRIBUTION: Widely distributed in Europe including Scandinavia and USSR (Latvia); around the Mediterranean (Algeria, Israel, Tunisia, Turkey); North America (USA), South America (Argentina, Chile, Uruguay); Australia (New South Wales, Western Australia), New Zealand. TRANSMISSION: Ustilospores survive on infected plant remains in soil and germinate to infect the new crop. Overwintering on self-sown seedlings is also possible.

Phaeoisariopsis bonducellae. [Descriptions of Fungi and Bacteria].

1986 ◽  
Author(s):  
P. M. Kirk
Keyword(s):  
South America ◽  
Geographical Distribution ◽  
Leaf Spot ◽  
West Bengal ◽  
Uttar Pradesh ◽  
Madhya Pradesh ◽  
Caesalpinia Bonducella ◽  
Survival Mechanisms

Abstract A description is provided for Phaeoisariopsis bonducellae. Information is included on the disease caused by the organism, its transmission, geographical distribution, and hosts. HOST: Caesalpinia bonducella (Bonduc nut). DISEASE: Leaf spot. GEOGRAPHICAL DISTRIBUTION: Asia (India (Madhya Pradesh, Uttar Pradesh, West Bengal)). South America (Brazil). TRANSMISSION: Presumably by air borne conidia. Survival mechanisms unknown.

Cochliobolus setariae. [Descriptions of Fungi and Bacteria].

1975 ◽  
Author(s):  
M. B. Ellis
Keyword(s):  
North America ◽  
South America ◽  
Geographical Distribution ◽  
Leaf Spot ◽  
Pacific Islands ◽  
New Caledonia ◽  
Setaria Italica ◽  
Pennisetum Typhoides ◽  
Leguminous Seeds

Abstract A description is provided for Cochliobolus setariae. Information is included on the disease caused by the organism, its transmission, geographical distribution, and hosts. HOSTS: Setaria italica, Pennisetum typhoides, Panicum fasciculatum, Brachiaria reptans and other cereals. Also isolated from soil and leguminous seeds. DISEASE: Leaf spot of Setaria italica, Cochliobolus setariae blight of brown top millet. GEOGRAPHICAL DISTRIBUTION: Asia (India, Japan, China, Taiwan), Pacific Islands (New Caledonia); North America (USA); South America (Venezuela); Africa (Egypt). TRANSMISSION: By infected seeds and air-borne spores from infected crops.

Sign in / Sign up

Export Citation Format

Share Document