Cylindrocarpon olidum var. olidum. [Descriptions of Fungi and Bacteria].

Author(s):  
D. Brayford

Abstract A description is provided for Cylindrocarpon olidum var. olidum. Information is included on the disease caused by the organism, its transmission, geographical distribution, and hosts. HOSTS: Wide range. At IMI there are records on: Asparagus, Camellia, Cocos, Cordylina, Heterodera (nematode), Medicago saliva, Narcissus, Pelargonium, Picea, Pinus, Pyrus, Secale, Solanum.DISEASE: Root rotting. GEOGRAPHICAL DISTRIBUTION: Africa: Ghana, Zimbabwe; Australasia: Australia; Europe: Germany, Great Britain; North America: Canada, Honduras, USA. TRANSMISSION: Soil-borne; slimy spores are probably spread by water.

Author(s):  
D. Brayford

Abstract A description is provided for Cylindrocarpon didymum. Information is included on the disease caused by the organism, its transmission, geographical distribution, and hosts. HOSTS: A wide range including Asparagus, Chamaecyparis, Dianthus, Fragaria, Fraxinus, Gossipium, Juniperus, Lycopersicon, Malus, Musa, Phaseolus, Pinus, Piper, Rhizophora, Rhododendron, Rubus, Saintpaulia, Solanum, Theabroma, Trifolium, Viola, seeds, soil. DISEASE: Root rots, seedling blights. GEOGRAPHICAL DISTRIBUTION: Africa: Egypt, Ghana; Asia: India, Malaysia, Pakistan; Australasia: Australia, New Zealand; Europe: France, Germany, Great Britain, Sweden, USSR; North America: Canada, Dominica, USA (Florida), West Indies. TRANSMISSION: Soil borne; slimy spores are probably spread by water.


Author(s):  
M. A. Spencer

Abstract A description is provided for Pythium spinosum. Information is included on the disease caused by the organism, its transmission, geographical distribution, and hosts. DISEASES: Seedling damping-off. HOSTS: Wide range of plant hosts. GEOGRAPHICAL DISTRIBUTION: AFRICA: South Africa. NORTH AMERICA: Canada, USA (Florida, Hawaii, Iowa). SOUTH AMERICA: Argentina. ASIA: China (Zhejiang), India, Japan, Korea, Taiwan. AUSTRALASIA: Australia (Queensland), New Zealand. EUROPE: France, Germany, Great Britain, Italy, Netherlands. TRANSMISSION: Contaminated soil, organic matter (oospores) and water (sporangia).


Author(s):  

Abstract A new distribution map is provided for Cronartium ribicola J.C. Fischer. Hosts: Pinus and Ribes. Information is given on the geographical distribution in ASIA, China (Shensi), India (N.W.), Iran, Japan, Korea, Nepal, Pakistan, Taiwan, USSR (Siberia), EUROPE, Austria, Belgium, Great Britain and Northern Ireland, Czechoslovakia, Denmark, Finland, France, Germany, Hungary, Irish Republic, Italy, Netherlands, Norway, Poland, Romania, Spain, Sweden, Switzerland, USSR (Tranzschel; Kuprevich & Tranzschel loc. cit.), (Ukraine), Yugoslavia, NORTH AMERICA, Canada, USA.


Author(s):  

Abstract A new distribution map is provided for Meria laricis Vuill. Hosts: Larch (Larix). Information is given on the geographical distribution in ASIA, USSR, AUSTRALASIA & OCEANIA, New Zealand, EUROPE, Austria, Czechoslovakia, Denmark, France, Germany, Great Britain, Irish Republic, Italy, Netherlands, Norway, Poland, Sweden, USSR (Ukraine, Byelorussia, Estonia, Latvia, Mori and Tatar ASR, Moscow, Leningrad and Voronezh), NORTH AMERICA, Canada (B.C.), United States (Pacific N.W.) (Idaho).


Author(s):  
T. V. Andrianova

Abstract A description is provided for Mycosphaerella oxyacanthae, which sometimes causes lesions on leaves of Crataegus laevigata. Some information on its dispersal and transmission and conservation status is given, along with details of its geographical distribution (North America (USA), Asia (Armenia, Azerbaijan, China, Georgia, India, Iran, Kazakhstan, Kirgizstan [Kyrgyzstan], Russia, Turkey, Turkmenistan, Uzbekistan), Europe (Austria, Belgium, Bulgaria, Czech Republic, Denmark, France, Germany, Great Britain, Hungary, Italy, Latvia, Norway, Portugal, Romania, Russia (Astrakhan oblast, Kursk oblast, Saratov oblast, Stavropolskyi krai, Voronezh oblast), Sweden, Switzerland and Ukraine)) and hosts (Phoma macrostoma, Crataegus ambigua, C. beckeriana, C. chlorocarpa, C. curvisepala [syn. C. kyrtostyla], C. laevigata [syn. C. oxyacantha], C. macracantha, C. microphylla, C. mollis, C. monogyna, C. pinnatifida, C. remotilobata, C. sanguinea, C. songarica [C. songorica], C. volgensis, and Crataegus sp.).


Author(s):  
D. W. Minter

Abstract A description is provided for Helminthosphaeria stuppea, which is apparently saprobic and able to colonize woody parts of a wide range of plants. 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 (USA (California, Colorado, Utah and Washington)), Europe (Austria, Czech Republic, Denmark, France and UK)) and hosts (including Tsuga mertensiana). No reports of negative economic impacts have been found.


Author(s):  
S. Diamandis

Abstract A description is provided for Rhizosphaera pini. Information is included on the disease caused by the organism, its transmission, geographical distribution, and hosts. HOSTS: Abies balsamea, A. cephallonica, A. fraseri, A. grandis, A. pectinata, A. veitchii, Pinus sp., Tsuga diversifolia, also possibly Picea abies. DISEASE: Needle blight of firs. GEOGRAPHICAL DISTRIBUTION: Asia (Japan), Europe (Austria, Czechoslovakia, France, Germany, Great Britain, Greece, Italy), North America (Canada, USA). TRANSMISSION: Not known.


Author(s):  
J. E. M. Mordue

Abstract A description is provided for Ustilago hypodytes. Information is included on the disease caused by the organism, its transmission, geographical distribution, and hosts. HOSTS: A wide range of grasses, including species of Agropyron (many), Ammophila, Brachypodium, Bromus, Calamagrostis, Diplachne, Distichlis, Elymus (many), Festuca, Glyceria, Hilaria, Hordeum, Haynaldia, Lygeum, Melica, Orysopsis, Panicum, Phalaris, Phleum, Poa (many), Puccinellia, Secale, Sitanion, Sporobolus, Stipa (many), and Trisetum. DISEASE: Stem smut of grasses. GEOGRAPHICAL DISTRIBUTION: Chiefly a temperate species found in Europe (including Denmark, Finland, France, Germany, Hungary, Italy, Romania, Sweden, Switzerland, UK, USSR, Yugoslavia) and North America (Canada, USA) and extending to central and South America (Argentina, Peru, Uruguay), N. Africa (Libya, Morocco, Tunisia), Japan, Australia and New Zealand. TRANSMISSION: Not fully understood, though inoculation experiments have demonstrated that infection occurs in mature vegetative plants (possibly through meristematic tissue), not seeds or flowers (22, 240; 24, 511). Once established, infection is systemic, probably overwintering in the root system and spreading by vegetative multiplication of host plants as well as from plant to plant (24, 511; 19, 720).


Author(s):  
G. M. Waterhouse

Abstract A description is provided for Pythium intermedium. Information is included on the disease caused by the organism, its transmission, geographical distribution, and hosts. HOSTS: On a wide range of hosts represented by the following families: Begoniaceae, Bromeliaceae, Chenopodiaceae, Compositae, Coniferae, Cruciferae, Euphorbiaceae, Geraniaceae, Gramineae, Leguminosae, Liliaceae, Linaceae, Moraceae, Onagraceae, Ranunculaceae, Rosaceae, Solanaceae, Ulmaceae, Violaceae; also in the Equisetales and Filicales. DISEASES: Damping-off of seedlings, foot rot and root rot of ornamentals, occasionally of crop plants and trees. GEOGRAPHICAL DISTRIBUTION: Asia (China); Australia & Oceania (Hawaii); Europe (England, Belgium, France, Germany, Holland, Sweden, U.S.S.R.); North America (U.S.A.); South America (Argentina). TRANSMISSION: A common soil inhabitant.


Author(s):  
D. N. Pegler

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.


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