Sydowia polyspora. [Descriptions of Fungi and Bacteria].

1970 ◽  
Author(s):  
B. C. Sutton
Keyword(s):  
North America ◽  
Geographical Distribution ◽  
Gall Midge ◽  
Climatic Conditions ◽  
Douglas Fir ◽  
Leaf Blight ◽  
Picea Engelmannii ◽  
Pinus Albicaulis ◽  
Pine Needle ◽  
Cupressus Lusitanica

Abstract A description is provided for Sydowia polyspora. Information is included on the disease caused by the organism, its transmission, geographical distribution, and hosts. HOSTS: On Cupressus lusitanica, Juniperus sp., Picea engelmannii, P. excelsa, Pinus albicaulis, P. attenuata, P. khasya, P. caribaea, P. laricis, P. montizumae, P. murrayana, P. nigra, P. patula, P. pinaster, P. radiata, P. sylvestris. DISEASES: Pine leaf-blight and die-back, associated frequently with injury caused by the pine needle midge, Cecidomyia baeri Prell. The needles remain attached hanging downwards from the tree for some time. Complete defoliation may take place on severely affected shoots. Also common on needles of Corsican pine showing die-back due to unsuitable climatic conditions aided by Scleroderris lagerbergii[Gremmeniella abietina], and on Douglas fir attacked by aphids, Chermes cooleyi Gill. GEOGRAPHICAL DISTRIBUTION: Africa (Kenya, Tanzania); Australia & Oceania (Australia); Europe (Finland, France, Germany, U.K., U.S.S.R.); North America (Canada, U.S.A.). TRANSMISSION: Presumably by air-borne spores. In pine the pathogen first develops at the base of the pairs of needles where the gall midge, Cecidomyia baeri burrows (Peace, 1962) and on Douglas fir attacked by Chermes cooleyi the pathogen invades the carcases of the aphids and uses these as a food base before penetrating the stomata of the needle (47, 3240).

Contarinia pseudotsugae. [Distribution map].

2020 ◽  
Author(s):  
Keyword(s):  
British Columbia ◽  
North America ◽  
Geographical Distribution ◽  
Pseudotsuga Menziesii ◽  
Douglas Fir ◽  
Distribution Map ◽  
New Distribution ◽  
Distribution In Europe

Abstract A new distribution map is provided for Contarinia pseudotsugae Condrashoff (Diptera: Cecidomyiidae). Hosts: Douglas fir (Pseudotsuga menziesii). Information is given on the geographical distribution in Europe (Belgium, France, Germany and Netherlands) and North America (Canada, British Columbia, USA, California, Idaho, Michigan, Montana, Oregon, Pennsylvania and Washington).

Phytophthora pseudotsugae. [Distribution map].

1988 ◽  
Author(s):  
Keyword(s):  
North America ◽  
Geographical Distribution ◽  
Pseudotsuga Menziesii ◽  
Douglas Fir ◽  
Distribution Map ◽  
New Distribution

Abstract A new distribution map is provided for Phytophthora pseudotsugae Hamm & Hansen. Host: douglas fir (Pseudotsuga menziesii). Information is given on the geographical distribution in NORTH AMERICA, USA, OR, WA.

Rhabdocline pseudotsugae. [Distribution map].

1976 ◽  
Author(s):  
Keyword(s):  
British Columbia ◽  
North America ◽  
Geographical Distribution ◽  
Pseudotsuga Menziesii ◽  
Douglas Fir ◽  
Distribution Map ◽  
Irish Republic ◽  
New Distribution ◽  
Distribution In Europe

Abstract A new distribution map is provided for Rhabdocline pseudotsugae Syd. Hosts: Douglas fir (Pseudotsuga menziesii). Information is given on the geographical distribution in EUROPE, Belgium, Britain, Czechoslovakia, Denmark, France, Germany, Irish Republic, Netherlands, Norway, Poland, Romania, Sweden, Switzerland, Yugoslavia, NORTH AMERICA, Canada (Alberta, British Columbia), USA.

Dendroctonus pseudotsugae. [Distribution map].

2004 ◽  
Author(s):  
Keyword(s):  
British Columbia ◽  
New Mexico ◽  
North America ◽  
Geographical Distribution ◽  
Pseudotsuga Menziesii ◽  
Douglas Fir ◽  
Distribution Map ◽  
Dendroctonus Pseudotsugae ◽  
New Distribution

Abstract A new distribution map is provided for Dendroctonus pseudotsugae Hopkins Coleoptera: Scolytidae Hosts: Mainly Douglas fir (Pseudotsuga menziesii), also other Pseudotsuga spp. Information is given on the geographical distribution in NORTH AMERICA, Canada, Alberta, British Columbia, Mexico, USA, Arizona, California, Colorado, Idaho, Montana, Nevada, New Mexico, Oregon, Texas, Utah, Washington, Wyoming.

Septoria cannabis. [Descriptions of Fungi and Bacteria].

1980 ◽  
Author(s):  
E. Punithalingam
Keyword(s):  
North America ◽  
Geographical Distribution ◽  
Leaf Spot ◽  
Crop Residues ◽  
New Records ◽  
Cannabis Sativa ◽  
Leaf Blight ◽  
White Leaf ◽  
Rain Splash

Abstract A description is provided for Septoria cannabis. Information is included on the disease caused by the organism, its transmission, geographical distribution, and hosts. HOST: Cannabis sativa (hemp). DISEASE: White leaf spot or leaf blight of hemp. Symptoms usually appear on basal leaves as round or ellipsoidal to polygonal, whitish or ochraceous yellow lesions with a conspicuous dark brown border. Affected leaves become curled and withered up towards the edges and fall prematurely leaving much of the lower part of the stem defoliated (15, 97, 805). GEOGRAPHICAL DISTRIBUTION: Asia, Europe and North America (CMI Map No. 477, ed. 1, 1971). New records not mapped are: Asia (Kashmir, Pakistan). TRANSMISSION: Detailed studies have not been reported but conidia are presumed to be disseminated by rain-splash and wind blown water. The fungus could also be carried over in crop residues.

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.

Megastigmus spermotrophus. [Distribution map].

1977 ◽  
Author(s):  
Keyword(s):  
New Zealand ◽  
North America ◽  
Host Plant ◽  
Geographical Distribution ◽  
Pseudotsuga Menziesii ◽  
Douglas Fir ◽  
Distribution Map ◽  
New Distribution ◽  
Distribution In Europe

Abstract A new distribution map is provided for Megastigmus spermotrophus(Wachtl.) (Hymenopt., Torymidae) (Douglas Fir Seed-Fly). Host Plant: Pseudotsuga menziesii. Information is given on the geographical distribution in EUROPE, Austria, Belgium, Britain, Czechoslovakia, Denmark, France, Germany, Hungary, Ireland, Netherlands, Poland, Yugoslavia, AUSTRALASIA, New Zealand, NORTH AMERICA, Canada, U.S.A.

Davisomycella ampla. [Descriptions of Fungi and Bacteria].

1978 ◽  
Author(s):  
D. W. Minter
Keyword(s):  
New Zealand ◽  
North America ◽  
South America ◽  
Geographical Distribution ◽  
Pinus Banksiana ◽  
Jack Pine ◽  
Pine Needle ◽  
Needle Blight

Abstract A description is provided for Davisomycella ampla. Information is included on the disease caused by the organism, its transmission, geographical distribution, and hosts. HOSTS: Pinus banksiana, P. contorta, P. strobus, P. pinaster, P. radiata. DISEASE: Jack pine needle blight. GEOGRAPHICAL DISTRIBUTION: North America (USA, Canada); South America (Brazil); New Zealand. TRANSMISSION: By air-borne ascospores.

Phaeocryptopus gaeumanii. [Distribution map].

1976 ◽  
Author(s):  
Keyword(s):  
British Columbia ◽  
New Zealand ◽  
North America ◽  
Northern Ireland ◽  
Geographical Distribution ◽  
Pseudotsuga Menziesii ◽  
Douglas Fir ◽  
Distribution Map ◽  
Irish Republic ◽  
New Distribution

Abstract A new distribution map is provided for Phaeocryptopus gaeumanii (Rohde) Petrak. Hosts: Douglas fir (Pseudotsuga menziesii). Information is given on the geographical distribution in AUSTRALASIA & OCEANIA, Australia (Tasmania), New Zealand, EUROPE, Austria, Belgium, Britain & Northern Ireland, Denmark, France, Germany, Irish Republic, Italy, Netherlands, Romania, Sweden, Switzerland, Yugoslavia, NORTH AMERICA, Canada (British Columbia), USA.

Diachora onobrychidis. [Descriptions of Fungi and Bacteria].

1986 ◽  
Author(s):  
P. F. Cannon
Keyword(s):  
North America ◽  
Geographical Distribution ◽  
Climatic Conditions ◽  
Temperate Zone ◽  
The North

Abstract A description is provided for Diachora onobrychidis. Information is included on the disease caused by the organism, its transmission, geographical distribution, and hosts. HOSTS: Known from species of Onobrychis, Hedysarum, Lathyrus and Vicia. DISEASE: Attacks living leaves and stems of Leguminosae. The anamorph matures at various times of the year, presumably dependent on climatic conditions. Collections of mature conidiomata made from Rhodes, Malta and Iraq in April to May, and from Germany in September, have been seen. The ascomata develop from the same stromata after overwintering. GEOGRAPHICAL DISTRIBUTION: Known from many places in the north temperate zone. Reported from Asia; Iraq, Iran. Europe: Germany, Greece, Italy, Malta, USSR. North America: Canada. TRANSMISSION: This has not been studied in detail, but it almost certainly occurs through air dispersal of ascospores which directly infect the leaves and stems. The mode of dispersal of conidia is unknown.

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