Gymnosporangium asiaticum. [Descriptions of Fungi and Bacteria].

1977 ◽  
Author(s):  
G. Laundon
Keyword(s):  
Geographical Distribution ◽  
Pyrus Communis ◽  
Japanese Pear ◽  
European Pear ◽  
Juniperus Chinensis ◽  
The Usa

Abstract A description is provided for Gymnosporangium asiaticum. Information is included on the disease caused by the organism, its transmission, geographical distribution, and hosts. HOSTS: Aecia on quince (Cydonia vulgaris), European pear (Pyrus communis), Japanese pear (P. sinensis) and other Pyrus spp., Chaenomeles spp. and Photinia spp. (and possibly Crateagus spp.). Telia on Juniperus chinensis and J. procumbens. DISEASE: Japanese pear rust. Aecia on leaves. Telia on leaves and green stems of juniper; not causing any swelling of tissues. GEOGRAPHICAL DISTRIBUTION: Japan, Korea, China. Intercepted in the USA.

Gymnosporangium fuscum. [Descriptions of Fungi and Bacteria].

1977 ◽  
Author(s):  
G. Laundon
Keyword(s):  
British Columbia ◽  
Geographical Distribution ◽  
Pyrus Communis ◽  
European Pear ◽  
Juniperus Chinensis

Abstract A description is provided for Gymnosporangium fuscum. Information is included on the disease caused by the organism, its transmission, geographical distribution, and hosts. HOSTS: Aecia on pear (Pyrus communis) and other species of Pyrus. Telia on Juniperus chinensis, J. sabina, J. virginiana and others of the 'sabina' group. DISEASE: European pear rust. Aecia on leaves, causing thickened spots, and on cankers on the branches. Telia on fusiform swellings of juniper stems. GEOGRAPHICAL DISTRIBUTION: Widely distributed in Europe and extending to Asia (Lebanon, Syria and Turkey) and N. Africa (Algeria, Morocco). Also introduced into N. America (British Columbia and California) (CMI Map 387, ed. 2, 1975).

Botryosphaeria berengeriana f.sp. piricola. [Distribution map].

1996 ◽  
Author(s):  
Keyword(s):  
Geographical Distribution ◽  
Japanese Pear ◽  
Pyrus Pyrifolia ◽  
Malus Pumila ◽  
Distribution Map ◽  
European Pear ◽  
New Distribution

Abstract A new distribution map is provided for Botryosphaeria berengeriana f.sp. piricola (Nose) Koganezawa & Sakuma. Hosts: Japanese pear (Pyrus pyrifolia), also European pear (P. communis) and apple (Malus pumila). Information is given on the geographical distribution in China, Anhui, Fujian, Guangxi, Hebei, Henan, Hubei, Jiangsu, Jiangxi, Jilin, Liaoning, Shandong, Shanxi, Sichuan, Zhejiang, Japan, Honshu, Shikoku, Korea Dem. People's Republic, Korea Republic, Taiwan.

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 yamadae. [Distribution map].

1994 ◽  
Author(s):  
Keyword(s):  
Geographical Distribution ◽  
Malus Pumila ◽  
Distribution Map ◽  
Juniperus Chinensis ◽  
New Distribution

Abstract A new distribution map is provided for Gymnosporangium yamadae Miyabe ex G. Yamada. Hosts: Apple (Malus pumila), Malus spp., Juniperus chinensis. Information is given on the geographical distribution in Asia, China, Gansu, Guangxi, Hebei, Henan, Hubei, Jiangsu, Jilin, Liaoning, Shaanxi, Shandong, Shanxi, Sichuan, Yunnan, Zhejiang, Japan, Hokkaido, Honshu, Korea.

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.

Lophodermium conigenum. [Descriptions of Fungi and Bacteria].

1978 ◽  
Author(s):  
D. W. Minter
Keyword(s):  
New Zealand ◽  
Geographical Distribution ◽  
East Coast ◽  
Needle Cast ◽  
Pinus Brutia ◽  
Significant Damage ◽  
The Usa ◽  
Wet Weather

Abstract A description is provided for Lophodermium conigenum. Information is included on the disease caused by the organism, its transmission, geographical distribution, and hosts. HOSTS: Mainly Diploxylon (two-three needle) pines, including Pinus brutia, P. densiflora, P. montana, P. mugo, P. nigra, P. resinosa, P. sylvestris, P. tabuliformis, P. contorta, P. halepensis, P. pinea and P. radiata. Has also been recorded from Haploxylon (five needle) pines. DISEASE: Needle cast of pines. Lophodermium conigenum inhabits green needles on the tree, producing no symptoms. When a branch bearing such needles is killed by an agent other than the fungus, L. conigenum fruits seprophytically on the needles. It causes no significant damage to the tree. GEOGRAPHICAL DISTRIBUTION: Widespread in Europe, a couple of records from the USA (east coast and Michigan) where it is apparently not common, New Zealand. TRANSMISSION: By air-borne ascospores in wet weather/humid conditions.

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