Ramularia onobrychidis. [Descriptions of Fungi and Bacteria].

2004 ◽  
Author(s):  
J. C. David
Keyword(s):  
Great Britain ◽  
Geographical Distribution ◽  
Arachis Hypogaea ◽  
Leaf Spot ◽  
Republic Of Georgia ◽  
Leaf Fall ◽  
Splash Dispersal ◽  
Rain Splash

Abstract A description is provided for Ramularia onobrychidis. Information is included on the disease caused by the organism, its transmission, geographical distribution, and hosts. DISEASE: Leaf spot of sainfoin. HOSTS: Arachis hypogaea, Onobrychis altissima, O. arenaria, O. hajastana, O. hohenhackeriana, O. miniata, O. oxyodonta, O. pulchella, O. sintenisii, O. transcaucasica, O. vaginalis, O. viciifolia (BRAUN, 1998) (Fabaceae). GEOGRAPHICAL DISTRIBUTION: ASIA: Armenia, Azerbaijan (EIBATOVA, 1958), Republic of Georgia, Kabardino-Balkariya, Kazakhstan, Kirgistan, Tadzhikistan (OSIPYAN, 1975), Turkmenistan, Uzbekistan. EUROPE: Austria, Belarus (OSIPYAN, 1975), Bulgaria, Denmark, Estonia, France, Germany, Great Britain, Hungary, Italy, Latvia, Lithuania, Moldova (OSIPYAN, 1975), Romania (BONTEA, 1985), Russia, Sweden, Turkey, Ukraine, Serbia. TRANSMISSION: By wind and rain-splash dispersal of conidia. HUGHES (1949) stated that sclerotia are formed in the lesions: the leaflets are readily detached and in moist conditions the sclerotia can develop after leaf fall, they can also be blown around aiding dispersal of the fungus.

Ramularia bellunensis. [Descriptions of Fungi and Bacteria].

2004 ◽  
Author(s):  
J. C. David
Keyword(s):  
New Zealand ◽  
Great Britain ◽  
East Africa ◽  
Geographical Distribution ◽  
Slovak Republic ◽  
Republic Of Georgia ◽  
Splash Dispersal ◽  
Tanacetum Cinerariifolium ◽  
Rain Splash ◽  
Chrysanthemum Segetum

Abstract A description is provided for Ramularia bellunensis. Information is included on the disease caused by the organism, its transmission, geographical distribution, and hosts. DISEASE: Bud disease of pyrethrum (Tanacetum cinerariifolium) that affects those areas where it is grown as a crop (East Africa). On other hosts it causes stem and leaf lesions. HOSTS: Argyranthemum frutescens, Glebionis (Chrysanthemum) segetum, Leucanthemum vulgare, Tanacetum cinerariifolium, T. coccineum, T. corymbosum, T. parthenium (BRAUN, 1998) (Asteraceae). GEOGRAPHICAL DISTRIBUTION: AFRICA: Ethiopia, Kenya, Tanzania, Zaire. ASIA: Republic of Georgia (www.cybertruffle.org.uk/gruzmaps/index.htm). AUSTRALASIA: New Zealand (www.nzfungi.landcareresearch.co.nz). EUROPE: Germany, Great Britain, Italy, Poland, Romania, Slovak Republic (www.nt.ars-grin.gov/fungaldatabases), Ukraine (Crimea). None reported. TRANSMISSION: Wind and rain-splash dispersal of conidia. The fungus on pyrethrum colonizes the involucral scales, fragments of which can be included with the seeds (NATTRASS, 1947).

Septoria geranii. [Descriptions of Fungi and Bacteria].

2004 ◽  
Author(s):  
T. V. Andrianova
Keyword(s):  
Great Britain ◽  
North America ◽  
Geographical Distribution ◽  
Leaf Spot ◽  
Republic Of Georgia ◽  
Necrotic Spots

Abstract A description is provided for Septoria geranii. Information is included on the disease caused by the organism, its transmission, geographical distribution, and hosts. DISEASE: Leaf spot; necrotic spots, leading to leaf drying. HOSTS: Geranium carolinianum, G. collinum, G. columbinum, G. depilatum, G. dissectum, G. divaricatum, G. graveolens, G. lucidum, G. molle, G. nodosum, G. palustre, G. pratense, G. purpureum, G. pusillum, G. pyrenaicum, G. rectum, G. robertianum, G. sanguineum, G. sylvaticum, G. versicolor (Geraniaceae). GEOGRAPHICAL DISTRIBUTION: AFRICA: Canary Is, Kenya. NORTH AMERICA: USA. ASIA: Azerbaijan, Republic of Georgia [www.cybertruffle.org.uk/gruzmaps/index.htm], India, Kazakhstan, Kirgizstan, Russia, Turkmenistan, Uzbekistan. EUROPE: Belarus, Bulgaria, Estonia, France, Germany, Great Britain, Greece, Hungary, Italy, Lithuania, Norway, Poland, Portugal, Romania, Russia, Spain. TRANSMISSION: Not reported, but almost certainly by airborne or splash-dispersed conidia.

Pseudocercospora kaki. [Descriptions of Fungi and Bacteria].

2000 ◽  
Author(s):  
J. C. David
Keyword(s):  
Hong Kong ◽  
North America ◽  
South America ◽  
Geographical Distribution ◽  
Leaf Spot ◽  
Minas Gerais ◽  
Republic Of Georgia ◽  
Rain Splash

Abstract A description is provided for Pseudocercospora kaki. Information is included on the disease caused by the organism, its transmission, geographical distribution, and hosts. DISEASE: Leaf spot of persimmon. HOSTS: Diospyros hispida, D. kaki, D. lotus, D. texana, D. tupru (Ebenaceae). GEOGRAPHICAL DISTRIBUTION: NORTH AMERICA: USA (Louisiana), Bermuda. SOUTH AMERICA: Brazil (São Paolo, Minas Gerais). ASIA: China (Hong Kong, other provinces also, see GUO & HSIEH, 1995), Republic of Georgia (BRAUN & MEL'NIK, 1997), India, Iran (56: 5475), Japan, Nepal, Taiwan. EUROPE: Russia (BRAUN & MEL'NIK, 1997). TRANSMISSION: Conidia are dispersed by rain splash (ZHU et al., 1996).

Septoria socia. [Descriptions of Fungi and Bacteria].

1967 ◽  
Author(s):  
E. Punithalingam
Keyword(s):  
Great Britain ◽  
Geographical Distribution ◽  
Leaf Spot ◽  
Leaf Surface ◽  
Severe Infection ◽  
Premature Death ◽  
Chrysanthemum Morifolium ◽  
Rain Splash ◽  
Chrysanthemum Leucanthemum

Abstract A description is provided for Septoria socia. Information is included on the disease caused by the organism, its transmission, geographical distribution, and hosts. HOSTS: On Chrysanthemum leucanthemum[Leucanthemum vulgare] and by inoculation on Chrysanthemum morifolium, C. maximum, C. parthenium, C. segetum and Achillea ptarmica (Punithalingam & Wheeler, 1965). DISEASE: Leaf spot of ox-eye daisy, C. leucanthemum. Lesions few, conspicuous on the upper side, rarely confluent, necrotic areas, becoming chocolate brown and later darker or even black, with a reddish purple border, 5 mm across. Lesions are confined to the lower leaves of the plant. Severe infection involving the entire leaf surface during moist conditions causes premature death. GEOGRAPHICAL DISTRIBUTION: Czechoslovakia, Great Britain, Italy, Spain, Pakistan and U.S.S.R. (Literature, Herb. IMI). TRANSMISSION: Not known. It is possible that, like other Septoria spp. on Chrysanthemum this species may be disseminated by rain-splash and by contact.

Peronospora conglomerata. [Descriptions of Fungi and Bacteria].

1994 ◽  
Author(s):  
G. Hall
Keyword(s):  
Geographical Distribution ◽  
Disease Transmission ◽  
Leaf Size ◽  
Washington State ◽  
Republic Of Georgia ◽  
Leaf Fall ◽  
State Transmission ◽  
Rain Splash ◽  
Light Green

Abstract A description is provided for Peronospora conglomerata. Information is included on the disease caused by the organism, its transmission, geographical distribution, and hosts. HOSTS: Erodium ciconium, E. cicutarium, E. hoefftianum, Geranium collinum, G. columbinum, G. dissectum, G. lucidum, G. macrorhizum, G. molle, G. ocellatum, G. phaeum, G. pratensis, G. purpureum, G. pusillum, G. pyrenaicum, G. robertianum, G. rotundifolium, G. solanderi, G. sylvaticum, G. transversale. DISEASE: Downy mildew of Geranium species. Conidiophores occur over the entire undersurface of the leaf, which remains small and becomes crinkled and yellowish. In G. pusillum, a weak infection creates only light green patches on affected leaves, but a heavy infection reduces leaf size, and the blade often turns up, causing much tissue damage and subsequent leaf fall (39, 159). GEOGRAPHICAL DISTRIBUTION: Africa: Canary Isles. Asia-Temperate: Armenia, Azerbaijan, Republic of Georgia, Israel, Kazakhstan, Kirgizistan, Uzbekistan, Stravropol, Turkmenistan. Asia-Tropical: India. Australasia: Australia (Qld), New Zealand. Europe: Austria, Czechoslovakia, Denmark, Eire, Finland, France, Germany, Hungary, Italy, Latvia, Lithuania, The Netherlands, Norway, Poland, Portugal, Romania, Russia (Krym, Smolensk, Pskov, Perm, Tatariya), Serbia, Spain, Sweden, Switzerland, Ukraine, UK (England, Scotland), Yugoslavia. North America: Canada (British Columbia), USA (Idaho, Washington State). TRANSMISSION: By conidia dispersed by wind or rain-splash. The role of oospores in disease transmission is unknown, but they may act as perennating structures.

Septoria sisymbrii. [Descriptions of Fungi and Bacteria].

2004 ◽  
Author(s):  
T. V. Andrianova
Keyword(s):  
Czech Republic ◽  
Great Britain ◽  
North America ◽  
South America ◽  
Central America ◽  
Geographical Distribution ◽  
Leaf Spot ◽  
Far East ◽  
West Siberia ◽  
Republic Of Georgia

Abstract A description is provided for Septoria sisymbrii. Information is included on the disease caused by the organism, its transmission, geographical distribution, and hosts. DISEASE: Leaf spot, leaf spot of watercress (ANON., 1984), drying of the leaves. HOSTS: Dentaria laciniata, Descurainia incisa, D. richardsonii subsp. incisa, Nasturtium microphyllum, N. officinale, Sisymbrium altissimum, S. columnae, S. irio, S. junceum, S. loeselii, S. officinale, S. orientale, S. polymorphum, S. septulatum, S. sinapistrum, S. strictissimum (Brassicaceae). GEOGRAPHICAL DISTRIBUTION: NORTH AMERICA: USA. CENTRAL AMERICA: Cuba. SOUTH AMERICA: Venezuela. ASIA: Armenia, Republic of Georgia [http://www.cybertruffle.org.uk/gruzmaps/index.htm], India, Iran, Kazakhstan, Kirgizstan, Russia (West Siberia, Far East), Tadjikistan, Turkmenistan, Uzbekistan. EUROPE: Austria, Bulgaria, Czech Republic, Estonia, Germany, Great Britain, Latvia, Lithuania, Moldova, Poland, Portugal, Romania, Russia, Serbia, former Yugoslavia. TRANSMISSION: Not reported, but almost certainly by airborne or splash-dispersed conidia.

Erwinia mallotivora. [Descriptions of Fungi and Bacteria].

1981 ◽  
Author(s):  
J. F. Bradbury
Keyword(s):  
Geographical Distribution ◽  
Leaf Spot ◽  
Leaf Surface ◽  
Bacterial Leaf Spot ◽  
Secondary Spread ◽  
Shoot Blight ◽  
Mallotus Japonicus ◽  
Rain Splash

Abstract A description is provided for Erwinia mallotivora. Information is included on the disease caused by the organism, its transmission, geographical distribution, and hosts. HOST: Mallotus japonicus (Euphorbiaceae). DISEASE: Bacterial leaf spot. The disease starts as water-soaked spots on the newly developing leaves in May and June. The spots tend to form close to the main veins. They enlarge and become angular as they are restricted by the veins, becoming dark brown, and often with a chlorotic halo about 1 mm wide. Spots may coalesce and kill the leaf, and shoot blight may also occur. Under humid conditions bacteria may exude on to the leaf surface. GEOGRAPHICAL DISTRIBUTION: Japan. TRANSMISSION: Unknown, but presumably rain splash plays a part at least in secondary spread.

Ramularia pratensis. [Descriptions of Fungi and Bacteria].

1986 ◽  
Author(s):  
S. Wilson
Keyword(s):  
Great Britain ◽  
Geographical Distribution ◽  
Leaf Spot ◽  
Channel Islands ◽  
Wind Dispersal ◽  
Rumex Acetosa

Abstract A description is provided for Ramularia pratensis. Information is included on the disease caused by the organism, its transmission, geographical distribution, and hosts. HOSTS: Rumex acetosa, R. aquaticus, R. acetosella, R. hydrolapathum, R. longifolius, R. obtusifolius, R. thyrsiflorus. DISEASE: Leaf spot of Rumex spp. Round or oval lesions, from (1-) 2 (-3) mm diam., with a distinct purple-brown border and buff centre. GEOGRAPHICAL DISTRIBUTION: Europe: Channel Islands, Eire, Great Britain, Germany, Hungary, Italy, Sweden. TRANSMISSION: Probably wind-dispersal by air-borne spores.

Peronospora rumicis. [Descriptions of Fungi and Bacteria].

1994 ◽  
Author(s):  
G. Hall
Keyword(s):  
South Africa ◽  
New Zealand ◽  
Geographical Distribution ◽  
Dense Layer ◽  
Republic Of Georgia ◽  
Rumex Acetosa ◽  
Polygonum Convolvulus ◽  
Plant Remains ◽  
Rain Splash ◽  
Roll Back

Abstract A description is provided for Peronospora rumicis. Information is included on the disease caused by the organism, its transmission, geographical distribution, and hosts. HOSTS: Emex spinosa, Polygonum convolvulus, Rumex acetosa, R. acetosella, R. alpestris (= R. arifolius), R. auriculatus, R. aviculare, R. hastatus, R. lunaria, R. longifolius, R. montanus, R. patienta, R. polyanthemus, R. repens, R. scutatus, R. thyrsifolius, R. tuberosus, R. vesicarius. DISEASE: Downy mildew of Rumex. Both leaves and flowers are infected. On R. acetosella, the plant remains upright following infection and the upper leaves crumple. In other Rumex species, infected leaves become covered in a very dense layer of violet-coloured felt on their undersurface, whereas a grey felt layer develops on flowers. Leaves become yellowish and their margins roll back (39, 159). GEOGRAPHICAL DISTRIBUTION: Africa: Libya, Morocco, South Africa. Asia-Temperate: Azerbaijan, Republic of Georgia, Israel, Kazakhstan, Kirghizistan, Stavropol. Asia-Tropical: India. Australasia: New Zealand. Europe: Austria, Cyprus, Czechoslovakia, Denmark, Eire, Estonia, Faeroes, Finland, France, Germany, Hungary, Italy, Latvia, Norway, Poland, Romania, Russia (Novgorod, St. Petersburg, Smolensk, Yaroslavl), Serbia, Sweden, Switzerland, Ukraine, UK (England, Scotland), Yugoslavia. TRANSMISSION: By conidia which are dispersed by wind or rain-splash. Mycelium perennates in the root.

Septoria apiicola. [Descriptions of Fungi and Bacteria].

1966 ◽  
Author(s):  
B. C. Sutton
Keyword(s):  
Late Blight ◽  
Geographical Distribution ◽  
Irrigation Water ◽  
Leaf Spot ◽  
World Wide ◽  
Host Tissue ◽  
Variable Size ◽  
Infected Seed ◽  
Seedling Roots ◽  
Rain Splash

Abstract A description is provided for Septoria apiicola. Information is included on the disease caused by the organism, its transmission, geographical distribution, and hosts. HOSTS: On Apium spp. DISEASE: Leaf spot (or late blight) of cultivated and wild celery and celeriac. On leaves, seeds and seedling roots, reducing yield and causing wastage through blemishes on the edible petioles. Leaf lesions of variable size, 1-6 mm diam., abundant, amphigenous, circular or sometimes vein-limited, confluent when severe, becoming depressed pale brown, margin diffuse. GEOGRAPHICAL DISTRIBUTION: World-wide on Apium spp. TRANSMISSION: Seed-borne (Noble et al., 1958; Sheridan, 1966). Also disseminated by rain-splash, in irrigation water, by contact as well as by animals and workman's tools (Chupp & Sherf, 1960). The pathogen may remain viable in the soil for 18 months in buried celery crop refuse, but for less than 6 weeks in the absence of intact host tissue (42: 82). Viability in infected seed may drop to 2% within 8 months from harvest and both mycelium and conidia can stay alive in seed stored up to 14 months (42: 508; 44, 1332) but not beyond 2 yr.

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