Gymnosporangium libocedri. [Descriptions of Fungi and Bacteria].

1977 ◽  
Author(s):  
G. Laundon
Keyword(s):  
Geographical Distribution ◽  
Pyrus Communis ◽  
Northern California ◽  
Malus Sylvestris

Abstract A description is provided for Gymnosporangium libocedri. Information is included on the disease caused by the organism, its transmission, geographical distribution, and hosts. HOSTS: Aecia on apple (Malus sylvestris) and other Malus spp., pear (Pyrus communis) and quince (Cydonia vulgaris). Also on Amelanchier, Chaenomeles, Crataegus and Sorbus. Telia on Calocedrus (Libocedrus) decurrens. DISEASE: Aecia on leaves and fruits. Telia on leaves; usually not causing distortions but sometimes witches' brooms present. GEOGRAPHICAL DISTRIBUTION: Northwestern USA (Washington, Oregon to northern California and Nevada).

Gymnosporangium clavipes. [Descriptions of Fungi and Bacteria].

1977 ◽  
Author(s):  
G. Laundon
Keyword(s):  
Geographical Distribution ◽  
Pyrus Communis ◽  
Juniperus Communis ◽  
Malus Sylvestris ◽  
Leaf Veins ◽  
The Usa

Abstract A description is provided for Gymnosporangium clavipes. Information is included on the disease caused by the organism, its transmission, geographical distribution, and hosts. HOSTS: Aecia on quince (Cydonia vulgaris); apple (Malus sylvestris) and hawthorn (Crataegus), also on Amelanchier, Aronia, Cheanomeles, Cotoneaster, Mespilus, Photinia, Pyrus and Sorbus but not of any importance on pear (Pyrus communis). Telia on Juniperus communis, J. sihirica and J. virginiana. DISEASE: Quince rust. Aecia chiefly on fruit, sometimes on fusiform swellings of stems and leaf veins of quince; not reported on apple foliage and though infections damage the fruit aecial pustules are rarely formed on fruit of apple. Telia on slight fusiform swellings of twigs and larger branches of juniper. GEOGRAPHICAL DISTRIBUTION: Widespread throughout Canada and the USA. Also reported from Mexico (CMI Map 121, ed. 2, 1975).

Gymnosporangium globosum. [Descriptions of Fungi and Bacteria].

1977 ◽  
Author(s):  
G. Laundon
Keyword(s):  
Geographical Distribution ◽  
Related Species ◽  
Pyrus Communis ◽  
Juniperus Virginiana ◽  
Malus Sylvestris ◽  
The Usa

Abstract A description is provided for Gymnosporangium globosum. Information is included on the disease caused by the organism, its transmission, geographical distribution, and hosts. HOSTS: Aecia chiefly on hawthorn (Crataegus), also on apple (Malus sylvestris) and other Malus spp., pear (Pyrus communis) and Sorbus. Telia on Juniperus virginiana and related species of the 'sabina' group. DISEASE: American hawthorn rust. Aecia chiefly on the leaves, rare on fruit. Telia perennial on globoid stem galls on juniper. GEOGRAPHICAL DISTRIBUTION: Widespread in eastern states of Canada and the USA. Also recorded in Alaska (CMI Map 123, ed. 2, 1975).

Gymnosporangium yamadae. [Descriptions of Fungi and Bacteria].

1977 ◽  
Author(s):  
G. Laundon
Keyword(s):  
Geographical Distribution ◽  
Malus Sylvestris ◽  
Juniperus Chinensis

Abstract A description is provided for Gymnosporangium yamadae. Information is included on the disease caused by the organism, its transmission, geographical distribution, and hosts. HOSTS: Aecia on apple (Malus sylvestris) and other Malus spp. Telia on Juniperus chinensis. DISEASE: Japanese apple rust. Aecia on leaves rarely on stems and fruit. Telia on globoid swellings or galls of juniper. GEOGRAPHICAL DISTRIBUTION: Japan, Korea, China.

Podosphaera clandestina. [Descriptions of Fungi and Bacteria].

1975 ◽  
Author(s):  
S. M. Khairi
Keyword(s):  
Host Plant ◽  
Geographical Distribution ◽  
Secondary Infection ◽  
Pyrus Communis ◽  
Crataegus Monogyna ◽  
Terminal Buds

Abstract A description is provided for Podosphaera clandestina. Information is included on the disease caused by the organism, its transmission, geographical distribution, and hosts. HOSTS: On Crataegus monogyna, C. pentagyna, C. punctata, Mespilus germanica, Cratoegomespilus grandiflora, C. dardari, Pyrus communis, Cydonia vulgaris, Pyrocydonia winkleri and P. danieli. DISEASE: Hawthorn mildew. Severe attacks cause defoliation and death of terminal buds on young seedlings and on soft shoots on hedges and trees. The disease has been recorded on hawthorn fruits. The host plant can be grown only from seeds. GEOGRAPHICAL DISTRIBUTION: Worldwide (Salmon, 1900; 45, 3081). Cleistothecia play no part in the disease in England. The overwintering mycelium, inside infected buds, survives until the following spring. These infected buds are the primary infections found each year. Secondary infection is by air-borne conidia.

Gymnosporangium globosum. [Distribution map].

1989 ◽  
Author(s):  
Keyword(s):  
North America ◽  
South Dakota ◽  
North Dakota ◽  
Geographical Distribution ◽  
Pyrus Communis ◽  
Malus Pumila ◽  
Distribution Map ◽  
New Distribution

Abstract A new distribution map is provided for Gymnosporangium globosum Farlow. Hosts: Apple (Malus pumila), pear (Pyrus communis), Crataegus & Juniperus). Information is given on the geographical distribution in North America, Canada, Ontario, Quebec, Saskatchewan, Mexico, USA, Colorado, North Dakota, South Dakota, Nebraska, Oklahoma, Texas, AK.

Phyllosticta solitaria. [Distribution map].

1996 ◽  
Author(s):  
Keyword(s):  
North Carolina ◽  
New Jersey ◽  
West Virginia ◽  
New Brunswick ◽  
Geographical Distribution ◽  
Distribution Map ◽  
Malus Sylvestris ◽  
New Distribution

Abstract A new distribution map is provided for Phyllosticta solitaria Ellis & Everh. Hosts: Malus sylvestris, M. coronaria, Crataegus spp. Information is given on the geographical distribution in Canada, New Brunswick, Denmark, USA, Alabama, Florida, Illinois, Indiana, Iowa, Kansas, Maryland, Mississippi, Nebraska, New Jersey, North Carolina, Ohio, Oklahoma, Texas, Washington, West Virginia, Wisconsin.

Gymnosporangium confusum. [Descriptions of Fungi and Bacteria].

1977 ◽  
Author(s):  
G. Laundon
Keyword(s):  
Geographical Distribution ◽  
Pyrus Communis ◽  
Japanese Quince

Abstract A description is provided for Gymnosporangium confusum. Information is included on the disease caused by the organism, its transmission, geographical distribution, and hosts. HOSTS: Aecia on hawthorn (Crataegus), European quince (Cydonia vulgaris), Japanese quince (Chaenomeles japonica) and medlar (Mespilus germanica); also on Cotoneaster and Sorbus, and occasionally weak infections on pear (Pyrus communis). Telia on junipers of both the 'oxycedrus' and 'sabina' groups. DISEASE: Medlar rust. Aecia chiefly on the leaves but also on stems, calyces and fruit. Telia on slight fusiform swellings of twigs and branches of juniper. GEOGRAPHICAL DISTRIBUTION: Widespread throughout Europe, extending into Asia (India, Iran, Lebanon, Pakistan, Turkey, USSR) and Africa (Algeria, Morocco, Tunisia). Also established in USA (California) (CMI Map 429, ed. 1, 1967).

Calonectria gracilis. [Descriptions of Fungi and Bacteria].

1993 ◽  
Author(s):  
P. W. Crous
Keyword(s):  
Geographical Distribution ◽  
Root Rot ◽  
Theobroma Cacao ◽  
Cocos Nucifera ◽  
Malus Sylvestris ◽  
Crown And Root Rot ◽  
Picea Excelsa

Abstract A description is provided for Calonectria gracilis. Information is included on the disease caused by the organism, its transmission, geographical distribution, and hosts. HOSTS: Argyreia splendens, Cocos nucifera, Eucalyptus sp., Malus sylvestris, Manilkara sapota, Medicago sp., Pahudia cochinchinensis, Picea excelsa, Theobroma cacao. DISEASE: Root rot of Eucalyptus, crown and root rot of Medicago (67, 2994; 67, 3493). GEOGRAPHICAL DISTRIBUTION: Brazil, Canada, India, Malaysia, Vietnam. TRANSMISSION: Probably wind and splash dispersed.

Dasineura pyri. [Distribution map].

2008 ◽  
Author(s):  
Keyword(s):  
New York ◽  
New Zealand ◽  
North America ◽  
Geographical Distribution ◽  
Pyrus Communis ◽  
Distribution Map ◽  
Central Russia ◽  
New Distribution ◽  
Distribution In Europe

Abstract A new distribution map is provided for Dasineura pyri (Bouché). Diptera: Cecidomyiidae. Hosts: Pyrus spp., particularly common pear (Pyrus communis). Information is given on the geographical distribution in Europe (Austria, Belgium, Bosnia-Hercegovina, Bulgaria, Denmark, Finland, France (Mainland France), Germany, Hungary, Italy, Lithuania, Macedonia, Montenegro, Netherlands, Norway, Poland, Romania, Russia (Central Russia), Serbia, Slovenia, Spain (Mainland Spain), Sweden, Switzerland, UK), Asia (China (Fujian)), North America (USA (Connecticut, New York, Oregon, Washington)), Oceania (New Zealand).

Gymnosporangium tremelloides. [Descriptions of Fungi and Bacteria].

1977 ◽  
Author(s):  
G. Laundon
Keyword(s):  
Geographical Distribution ◽  
Juniperus Communis ◽  
Malus Sylvestris

Abstract A description is provided for Gymnosporangium tremelloides. Information is included on the disease caused by the organism, its transmission, geographical distribution, and hosts. HOSTS: Aecia chiefly on apple (Malus sylvestris) and Sorbus, also on other Malus spp. and quince (Cydonia vulgaris). Telia on Juniperis communis and other species of the 'oxycedrus' group. DISEASE: European apple rust. Aecia on leaves. Juniper gall rust, telia on fusiform or gall-like swellings of the smaller branches of juniper (Juniperus communis) or on hemispheric swellings along the sides of large branches. GEOGRAPHICAL DISTRIBUTION: Widely distributed in Europe (but not in Britain) and extending into N.W. Africa. Also in China and in western N. America from Alaska to Colorado and Utah.

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