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.

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.

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.

Entyloma calendulae f. dahliae. [Descriptions of Fungi and Bacteria].

1984 ◽  
Author(s):  
J. E. M. Mordue
Keyword(s):  
New Zealand ◽  
North America ◽  
South America ◽  
Papua New Guinea ◽  
Geographical Distribution ◽  
Leaf Spot ◽  
West Indies ◽  
Growing Season ◽  
Plant Debris ◽  
Long Period

Abstract A description is provided for Entyloma calendulae f. dahliae. Information is included on the disease caused by the organism, its transmission, geographical distribution, and hosts. HOSTS: Dahlia variabilis, D. coccinia, D. pinnata; cultivated dahlia. DISEASE: Leaf spot of Dahlia. GEOGRAPHICAL DISTRIBUTION: Widely distributed in Europe including Finland and Sweden; Africa; North America (USA); Central and South America and West Indies (Argentina, Brazil, Colombia, El Salvador, Guatemala, Jamaica, Venezuela); Asia (Burma, India, Indonesia, Israel, Japan, Malaysia, Nepal, Pakistan, Sri Lanka, Papua New Guinea); Australia and New Zealand. CMI Map 114, ed. 4, 1983. TRANSMISSION: Soil-borne. Overwinters as ustilospores buried in plant debris; not transmitted by seed or in tubers, although spread by soil attached to tubers is possible (6, 97; 17, 655; 41, 603; 49, 1050); mature ustilospores are capable of remaining viable for a long period when dry (16, 304). Conidia contribute to dissemination during the growing season (49, 1050).

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.

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.

Ramularia deusta. [Descriptions of Fungi and Bacteria].

1986 ◽  
Author(s):  
J. Ingham
Keyword(s):  
North America ◽  
South America ◽  
Geographical Distribution ◽  
Leaf Spot ◽  
Lotus Corniculatus ◽  
Wind Dispersal ◽  
Pea Seeds ◽  
Mode Of Transmission

Abstract A description is provided for Ramularia deusta. Information is included on the disease caused by the organism, its transmission, geographical distribution, and hosts. HOSTS: Leguminosae: Lathyrus hirsutus, L. latifolius, L. maritimus, L. monatus, L. niger, L. palustris, L. pratensis, L. roseus, L. Silvester, L. sylvestris, L. tuberosus, Lotus corniculatus, L. siliquosus. DISEASE: Leaf spot of Lathyrus and Lotus spp. In the case of Lathyrus latifolius, perennial pea, lesions have been recorded on leaflets, petioles, stipules, tendrils, stems peduncles and pods (30, 41). Sporulation is known to occur in August and September. GEOGRAPHICAL DISTRIBUTION: Europe (England, Germany, Ireland, Sweden), South America (Brazil), North America (USA: California, Washington). TRANSMISSION: By wind dispersal of air-borne conidia. Baker et al. (1950) also noticed that lesions extended through pod walls infecting perennial pea seeds, but did not investigate this mode of transmission.

Cladosporium chlorocephalum. [Descriptions of Fungi and Bacteria].

2000 ◽  
Author(s):  
J. C. David
Keyword(s):  
New York ◽  
Czech Republic ◽  
New Zealand ◽  
North America ◽  
West Virginia ◽  
South America ◽  
Geographical Distribution ◽  
Wind Dispersal ◽  
Republic Of Georgia ◽  
Airborne Conidia

Abstract A description is provided for Cladosporium chlorocephalum. Information is included on the disease caused by the organism, its transmission, geographical distribution, and hosts. DISEASE: Red spot of peony, occurring on leaves, petioles and stems of host. HOSTS: Paeonia arborea, P. officinalis, P. suffruticosa (Paeoniaceae). GEOGRAPHICAL DISTRIBUTION: NORTH AMERICA: Canada (Quebec, 3: 138), USA (Alaska, Alabama, Connecticut, District of Colombia, Delaware, Illinois (8: 293), Iowa, Kansas, Massachusetts, Minnesota, Missouri, Mississippi, New York, Ohio, Pennsylvania, Wisconsin, West Virginia). SOUTH AMERICA: Argentina (18: 478). ASIA: Armenia, China, Republic of Georgia, Kazakhstan. AUSTRALASIA: New Zealand. EUROPE: Bulgaria (38: 147), Czech Republic, Denmark, France (28: 510), Italy, Germany, Latvia, Moldavia, Poland, Romania (16: 20), Russia, Switzerland, UK, Ukraine. TRANSMISSION: By wind dispersal of airborne conidia and on dead remains of old plants.

Phomopsis obscurans. [Descriptions of Fungi and Bacteria].

1970 ◽  
Author(s):  
B. C. Sutton
Keyword(s):  
New Zealand ◽  
North America ◽  
South America ◽  
Geographical Distribution ◽  
Leaf Spot ◽  
Primary Infection ◽  
Central Portion ◽  
Leaf Scorch ◽  
Fragaria Chiloensis ◽  
Mycosphaerella Fragariae

Abstract A description is provided for Phomopsis obscurans. Information is included on the disease caused by the organism, its transmission, geographical distribution, and hosts. HOSTS: On Fragaria chiloensis, Fragaria chiloensis var. ananassa, F. vesca, F. virginiana. DISEASE: Leaf blight of strawberry. Forming reddish-purple, almost circular lesions on older leaves and calyces which become elliptical or V-shaped when formed along veins, with the central portion drying out and turning brown. Delayed development of symptoms may lead to difficulties in distinguishing lesions in the field from those of leaf spot (Mycosphaerella fragariae (Tul.) Lind.) and leaf scorch (Diplocarpon earliana (Ellis & Everh.) Wolf). GEOGRAPHICAL DISTRIBUTION: Africa (Malawi, Mauritius, Rhodesia, Tanzania, Zambia); Asia (India, Nepal, Pakistan, U.S.S.R.); Australasia & Oceania (Australia, New Zealand, Tonga); North America (Canada, U.S.A.); South America (Argentina). TRANSMISSION: The pathogen overwinters as viable pycnidia in lesions on the old leaves which remain attached to the plant. Primary infection may occur early in the season by rain-splashed conidia.

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).

Podosphaera leucotricha. [Descriptions of Fungi and Bacteria].

1967 ◽  
Author(s):  
J. N. Kapoor
Keyword(s):  
South Africa ◽  
New Zealand ◽  
North America ◽  
Powdery Mildew ◽  
South America ◽  
Geographical Distribution ◽  
Prunus Persica ◽  
Podosphaera Leucotricha

Abstract A description is provided for Podosphaera leucotricha. Information is included on the disease caused by the organism, its transmission, geographical distribution, and hosts. HOSTS: On Malus spp., chiefly on M. pumila (apple), peach (Prunus persica), quince (Cydonia ualgaris) and Photinia spp. also attacked (Hirata, 1966). Also reported on almond fruit (43, 2544). DISEASE: Powdery mildew of apple. GEOGRAPHICAL DISTRIBUTION: Africa (? Kenya, Rhodaia, South Africa, Tanzania); Asia (China, India, Israel, Japan, U.S.S.R.); Australia and New Zealand, Europe (widely distributed) North America (Canada and U.S.A.); South America (Argentina, Brazil, Chile, Colombia, Peru). (CMI map 118). TRANSMISSION: Overwinters on host as dormant mycdium in blossom buds. The role of deistothecia in overwintering is doubtful. Spread by wind-borne conidia (Anderson, 1956).

Sign in / Sign up

Export Citation Format

Share Document