Gnomonia comari. [Descriptions of Fungi and Bacteria].

1982 ◽  
Author(s):  
E. Punithalingam
Keyword(s):  
North America ◽  
Geographical Distribution ◽  
New Hampshire ◽  
Early Spring ◽  
Fruit Rot ◽  
Vascular Bundles ◽  
Yield Losses ◽  
Leaf Blotch ◽  
Water Splash ◽  
Western Spain

Abstract A description is provided for Gnomonia comari. Information is included on the disease caused by the organism, its transmission, geographical distribution, and hosts. HOSTS: Fragaria vesca, F. chilonensis var. ananassa and Fragaria cvs. Also on Agrimonia, Alchemilla, Comarum, Epilobium, Geum, Potentilla and Sanguisorba. DISEASE: Leaf blotch, dry necrosis of sepal tips, fruit rot and dying of strawberry plants. Also rotting of strawberry runners in cold storage (50, 189). Although the disease is economically unimportant in Switzerland, Bolay (1972) claims in Germany, UK and North America yield losses can reach 70%. GEOGRAPHICAL DISTRIBUTION: Africa (Zimbabwe); Asia (Israel); Australasia & Oceania (New Zealand); Europe (Denmark, Finland, France, Germany, Greece, Netherlands, Poland, Rumania, Spain, Sweden, Switzerland, UK, Yugoslavia); North America (Canada, British Columbia, Newfoundland, Nova Scotia, Ontario, Quebec; USA, California, Maine, Michigan, New Hampshire). TRANSMISSION: By conidia and ascospores disseminated by water splash during humid conditions (Bolton, 1954). The fungus overwinters on leaves left in the field and in nature perithecia occur on overwintered leaves in early spring. Infection starts early in the season (Bolton, 1954; 51, 2693) by the entry of the fungus through stomata and wounds (33, 737; Bolay, 1972). Once the fungus has entered the leaf it penetrates the parenchyma cells and progessses towards the vascular bundles and enters the vessels producing profuse mycelium and subsequently numerous pycnidia (Bolton, 1954). In Western Spain under laboratory conditions pycnidia have been produced on infected plants in 4-5 days and perithecia in 8-10 days (52, 3776). In Canada pycnidia were observed in the cortex of petioles 4 weeks after inoculation and leaves with pycnidia kept in a moist chamber were found to develop perithecia in 4-6 days (Bolton, 1954). Perithecia developed in this way took 10-12 days to mature.

Septoria cucurbitacearum. [Descriptions of Fungi and Bacteria].

1982 ◽  
Author(s):  
E. Punithalingam
Keyword(s):  
New York ◽  
North America ◽  
Geographical Distribution ◽  
New Hampshire ◽  
Cucumis Melo ◽  
Bryonia Dioica ◽  
Water Splash ◽  
Vegetable Marrow ◽  
Wet Weather ◽  
Cucurbita Ficifolia

Abstract A description is provided for Septoria cucurbitacearum. Information is included on the disease caused by the organism, its transmission, geographical distribution, and hosts. HOSTS: Cucumis melo, C. sativus, Cucurbita ficifolia (=C. melanosperma), C. maxima, C. moschata, C. pepo and Bryonia dioica (=B. cretica). DISEASE: Leaf spot of cantaloupe, cucumber, melon, pumpkin, squash and vegetable marrow. The visible symptoms are circular, olive brown lesions, prominent on the upper surface of the leaves. With the progress of the disease the spots enlarge, usually reaching 3-5 mm diam., occasionally 8 mm wide and soon dry up. Older lesions tend to turn white revealing several pycnidia embedded within the tissue. GEOGRAPHICAL DISTRIBUTION: Africa (Ethiopia, Kenya, Zambia); Australasia & Oceania (Australia); Europe (Bulgaria, Denmark, France, Germany, Hungary, Italy, Portugal, Rumania, USSR); North America (USA, Delaware, Massachusetts, New Hampshire, New York, Pennsylvania, Wisconsin). TRANSMISSION: Presumably by conidia disseminated by water splash in wet weather or heavy dews.

Septoria humuli. [Descriptions of Fungi and Bacteria].

1985 ◽  
Author(s):  
E. Punithalingam
Keyword(s):  
North America ◽  
Geographical Distribution ◽  
New Hampshire ◽  
Leaf Spot ◽  
Humulus Lupulus ◽  
Water Splash ◽  
Hot Weather

Abstract A description is provided for Septoria humuli. Information is included on the disease caused by the organism, its transmission, geographical distribution, and hosts. HOST: Humulus lupulus (hop). DISEASE: Leaf spot of hop leading to premature defoliation. The disease has been reported initially to be confined to older and lower leaves and subsequently spreading to younger and upper leaves (Putto, Koul & Saraf, 1975). Female plants have been reported as being more susceptible than male plants. The visible symptoms are minute circular or irregular lesions, 1-3 mm wide and prominent on both surfaces of the leaves. With the progress of infection these lesions enlarge to form well defined spots, up to 6 mm wide, with ash white centres. Occasionally spots coalesce to form leaf blotches. Often severely infected leaves are killed and one report claims leaves on vines up to a height of 2-3 m have been affected (5, 1985). GEOGRAPHICAL DISTRIBUTION: Asia (India, Himachal Padesh, Kashmir); Europe (Czechoslovakia, Belgium, France, Germany, Hungary, USSR); North America (USA, Kansas, New Hampshire). TRANSMISSION: No specific studies reported. Presumably by conidia disseminated by water splash during hot weather.

Drechslera biseptata. [Descriptions of Fungi and Bacteria].

1990 ◽  
Author(s):  
A. Sivanesan
Keyword(s):  
New Zealand ◽  
North America ◽  
Geographical Distribution ◽  
Carica Papaya ◽  
Fruit Rot

Abstract A description is provided for Drechslera biseptata. Information is included on the disease caused by the organism, its transmission, geographical distribution, and hosts. HOSTS: Agropyron, Aira, Avena, Dactylis, Hordeum, Microlaena, Sorghum, Tetrarrhena, Triticum, Vulpia and Zea; also isolated from Carica papaya (67, 5097). DISEASE: Seed-borne, fruit rot of papaya. GEOGRAPHICAL DISTRIBUTION: Australia, Europe, India, New Zealand, North America. TRANSMISSION: Wind-borne conidia, seed-borne (59, 2159).

Isthmiella faullii. [Descriptions of Fungi and Bacteria].

1984 ◽  
Author(s):  
P. F. Cannon
Keyword(s):  
Nova Scotia ◽  
North America ◽  
Geographical Distribution ◽  
New Hampshire ◽  
Abies Balsamea ◽  
Eastern North America ◽  
Northern Ontario ◽  
Needle Blight ◽  
Juvenile Plants

Abstract A description is provided for Isthmiella faullii. Information is included on the disease caused by the organism, its transmission, geographical distribution, and hosts. HOSTS: Apparently confined to Abies balsamea. DISEASE: Causes a needle blight of Abies balsamea. According to Darker (1932), it 'is the commonest and most destructive of the Hypodermataceae on Abies balsamea in eastern North America'. It is particularly damaging to seedlings and juvenile plants. In northern Ontario, from where the disease was originally identified, infection occurs during the summer, but signs of the disease do not appear until the following spring, when needles become brown and conidiomata develop, conidia being discharged in July, and shortly after this ascomata begin to form, maturing in July of the following year. GEOGRAPHICAL DISTRIBUTION: Reported from Canada: Nova Scotia, Ontario, Quebec and USA: Michigan and New Hampshire. TRANSMISSION: Through air dispersal of ascospores, which directly infect the leaves (Darker, 1932).

Entyloma serotinum. [Descriptions of Fungi and Bacteria].

1988 ◽  
Author(s):  
J. E. M. Mordue
Keyword(s):  
New Zealand ◽  
North America ◽  
Geographical Distribution ◽  
Leaf Spot ◽  
Infected Plant ◽  
Growing Season ◽  
Republic Of Georgia ◽  
Borago Officinalis ◽  
Plant Remains ◽  
Water Splash

Abstract A description is provided for Entyloma serotinum. Information is included on the disease caused by the organism, its transmission, geographical distribution, and hosts. HOSTS: Symphytum spp., including S. asperrimum, S. bulbosum, S. cordatum, S. officinale, S. ottomanum and S. tuberosum; Borago officinalis; also recorded on Amsinckia, Lappula and Mertensia spp. (in USA) and Pulmonaria (in Europe, but see 64, 4163). DISEASE: Leaf spot of Symphylum, less frequently (though with similar symptoms) of other members of the Boraginaceae.GEOGRAPHICAL DISTRIBUTION: Africa: Algeria. Asia: Israel, USSR (Republic of Georgia). Australasia: New Zealand. Europe: widespread, including Austria, British Isles, Czechoslovakia, Denmark, France (including Corsica), Germany, Hungary, Italy, Netherlands, Poland, Portugal, Romania, Spain, Switzerland, USSR (Latvia), Yugoslavia. North America: USA. TRANSMISSION: Ustilospores survive on infected plant remains and in soil, and germinate to infect seedlings and the new seasons's leaves. In Europe conidia may also over-winter and initiate new infections in spring (Kaiser, 1936). During the growing season, conidia are disseminated by air currents and water-splash.

Phellinus igniarius. [Descriptions of Fungi and Bacteria].

1968 ◽  
Author(s):  
D. N. Pegler
Keyword(s):  
Great Britain ◽  
North America ◽  
Central America ◽  
Geographical Distribution ◽  
Early Spring ◽  
Field Conditions ◽  
Airborne Spores ◽  
Phellinus Igniarius ◽  
Late Autumn

Abstract A description is provided for Phellinus igniarius. Information is included on the disease caused by the organism, its transmission, geographical distribution, and hosts. HOSTS: Common on the trunks of Salix and Populus, also recorded on Acer, Arbutus, Arctostaphylos, Betula, Carpinus, Castanopsis, Cornus, Erythropheum, Fagus, Fraxinus, Juglans, Ostrya, Pericopsis, Prunus, Pyrus, Quercus, Rhamnus and Ulmus. DISEASE: White heart rot. Causing a destructive decay of the general delignifying type. The decayed area becomes soft and white, bounded by conspicuous dark zones or black lines with an irregularly concentric arrangement. GEOGRAPHICAL DISTRIBUTION: Africa (Eritrea, Madagascar, Zambia); Asia (Japan, U.S.S.R.); Europe (Bulgaria, Czechoslovakia, Germany, Great Britain, Hungary, Netherlands, Norway, Rumania, Sweden); North America (Canada, U.S.A.); Central America (Nicaragua, Venezuela). TRANSMISSION: By airborne spores, which are continuously produced from early spring until late autumn when the temperature drops below 5°C (Riley, 1952). Spores remain viable for several months under field conditions (Iverson, 1968). Infection occurs mainly through branch wounds.

Geoglossum cookeanum. [Descriptions of Fungi and Bacteria].

2015 ◽  
Author(s):  
D. W. Minter
Keyword(s):  
Czech Republic ◽  
New Zealand ◽  
North America ◽  
Geographical Distribution ◽  
New Hampshire ◽  
Western Australia ◽  
Economic Impacts ◽  
Conservation Status ◽  
South Australia

Abstract A description is provided for Geoglossum cookeanum. Some information on its associated organisms and substrata, habitats, dispersal and transmission and conservation status is given, along with details of its geographical distribution (North America (Mexico and USA (Kentucky, Michigan, New Hampshire and Tenesse)), Asia (Georgia, India (Uttarakhand) and China (Guizhou, Heilongjiang, Jilin and Yunnan)), Australasia (Australia (South Australia, Tasmania, Victoria and Western Australia) and New Zealand), Europe (Austria, Belgium, Czech Republic, Denmark, Estonia, Finland, France, Germany, Ireland, Italy, Luxembourg, Netherlands, Norway, Poland, Russia, Slovakia, Spain, Sweden, Switzerland and UK)). No reports of negative economic impacts of this fungus have been found.

Puccinia emaculata. [Distribution map].

2013 ◽  
Author(s):  
Keyword(s):  
North America ◽  
South America ◽  
South Dakota ◽  
North Dakota ◽  
Geographical Distribution ◽  
Rhode Island ◽  
New Hampshire ◽  
Panicum Virgatum ◽  
Distribution Map ◽  
New Distribution

Abstract A new distribution map is provided for Puccinia emaculata Schwein. Basidiomycota: Pucciniomycetes: Pucciniales. Hosts: switchgrass (Panicum virgatum) and other Panicum spp. Information is given on the geographical distribution in Asia (China, Hebei), Africa (Uganda), North America (Canada, Ontario, Mexico, USA, Alabama, Arkansas, Colorado, Connecticut, Florida, Illinois, Indiana, Iowa, Kansas, Kentucky, Massachusetts, Mississipi, Nebraska, New Hampshire, North Dakota, Ohio, Oklahoma, Pennsylvania, Rhode Island, South Dakota, Tennessee, Texas, Virginia, Wisconsin), South America (Brazil).

Ascochyta paspali. [Descriptions of Fungi and Bacteria].

1985 ◽  
Author(s):  
E. Punithalingam
Keyword(s):  
New Zealand ◽  
North America ◽  
South America ◽  
Geographical Distribution ◽  
Paspalum Dilatatum ◽  
Leaf Blotch ◽  
Rain Splash

Abstract A description is provided for Ascochyta paspali. Information is included on the disease caused by the organism, its transmission, geographical distribution, and hosts. HOSTS: Paspalum dilatatum (dallis grass), (and P. floridanum var. glabratum). DISEASE: Leaf blotch or streak of Paspalum spp. The visible symptoms are yellowish brown to grey lesions developing at the leaf tip and subsequently involving the entire leaf and sometimes the sheath. GEOGRAPHICAL DISTRIBUTION: Australasia (New Zealand); South America (Argentina) and North America (? USA). TRANSMISSION: The fungus occurs in Paspalum as an endophyte (Buchanan, 1984). The mycelium has been reported to grow systemically in xylem vessels of roots, leaves and inflorescences. Conidia are dispersed by rain splash and the fungus has been isolated from seeds. It has been suggested that the fungus might overwinter as mycelium within roots, crowns and infected seeds.

Bifusella linearis. [Descriptions of Fungi and Bacteria].

1984 ◽  
Author(s):  
D. W. Minter
Keyword(s):  
New York ◽  
British Columbia ◽  
North Carolina ◽  
North America ◽  
Geographical Distribution ◽  
New Hampshire ◽  
Pinus Albicaulis ◽  
Needle Cast ◽  
Tar Spot ◽  
Needle Blight

Abstract A description is provided for Bifusella linearis. Information is included on the disease caused by the organism, its transmission, geographical distribution, and hosts. HOSTS: Pinus albicaulis, P. flexilis, P. monticola, P. strobus. DISEASE: Needle blight and needle cast of white pines, tar spot needle cast, Bifusella blight. The disease apparently occurs only under moist conditions, and since its effects are usually limited to defoliation of needles two or three years old, it is not devastating. Probably infects young needles but macrosymptoms do not show up until the following spring when needles become blighted from the tip part-way to the base. The disease tends to occur principally in the lower crown (47, 2867). GEOGRAPHICAL DISTRIBUTION: North America (Canada: British Columbia, Ontario, U.S.A. : California, Colorado, Idaho, Maine, Massachusetts, Minnesota, New Hampshire, New York, North Carolina, Pennsylvania, Washington, Wisconsin). TRANSMISSION: By air-borne ascospores in wet or humid weather.

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