Fusarium nygamai. [Descriptions of Fungi and Bacteria].

Author(s):  
D. Brayford

Abstract A description is provided for Fusarium nygamai. Information is included on the disease caused by the organism, its transmission, geographical distribution, and hosts. HOSTS: Typically isolated from soil, roots of sorghum, millet, cotton, Phaseolus, etc. and plant debris. Reported to infect Striga hermonthica in sorghum (Abbasher & Sauerborn, 1992). DISEASE: Not normally regarded as an economic plant pathogen, although it may cause reduction in Striga population levels. Occasionally an opportunistic pathogen of humans (Krulder et al., 1996). GEOGRAPHICAL DISTRIBUTION: Africa: Egypt, Namibia, Nigeria, Republic of South Africa, Sudan, Zimbabwe; Australasia: Australia (Queensland, New South Wales, Northern Territories), China (76, 4386), Malaysia (Salleh & Strange, 1988), Thailand; Americas: Puerto Rico, USA (75, 7565; 76, 6666). This species appears to be widespread in arid, tropical soils. TRANSMISSION: Conidia are dispersed locally by water flow and splash droplets. Chlamydospores may be dispersed by movement of contaminated soil or plant debris.

Author(s):  
P. F. Cannon

Abstract A description is provided for Endococcus apiciicola, a biotrophic parasite or parasymbiont of Usnea spp. Information is included on morphology, associated organisms and substrata, geographical distribution (Africa (Canary Islands, Rwanda, Tanzania), North America (Canada, British Columbia), USA (Washington), South America (Bolivia, Brazil, Colombia), Australasia (Australia, New South Wales, Tasmania), Caribbean (Puerto Rico), Europe (France, Germany, UK, England, Wales)), dispersal/transmission, conservation status and taxonomic position.


Author(s):  
J. F. Bradbury

Abstract A description is provided for Pseudomonas rubrisubalbicans. Information is included on the disease caused by the organism, its transmission, geographical distribution, and hosts. HOSTS: On Saccharum officinarum; also produces a limited amount of infection when inoculated into Sorghum halepense and S. vulgare but, unlike P. rubrilincans, it does not affect Zea mays. DISEASE: Mottled stripe of sugarcane. Stripes are paler than those of red stripe disease, speckled and often fewer per leaf. No top rot occurs. Of minor economic importance. GEOGRAPHICAL DISTRIBUTION: Apparently less widespread than P. rubrilineans. Reported in Africa (Madagascar, Mauritius, Nigeria, Reunion, Tanzania), Asia (Ceylon), Australasia (Fiji, New South Wales, Queensland), Europe (Italy), North America (U.S.A.), Central America (Barbados, Guadelope, Jamaica, Martinique, Nicaragua, Puerto Rico), South America (Brazil, Colombia, Peru). (CMI Map 337). TRANSMISSION: Wind and rain are thought to be the most important factors in spread within fields. It is introduced to new areas in diseased setts.


Author(s):  
J. C. David

Abstract A description is provided for Alternaria dianthi. Information is included on the disease caused by the organism, its transmission, geographical distribution, and hosts. HOSTS: Dianthus spp., and other members of the Caryophyllaceae including Gypsophila and Saponaria spp. It is occasionally reported from other plants (e.g. Hibiscus esculentus (51, 1025; 42, 655)). DISEASE: Carnation blight. The fungus causes yellowing and necrosis of the host tissue, initially killing the leaves but in severe infections, also the stem and eventually the whole plant. The fungus can persist in the soil, from where it can attack seedlings, usually destroying them rapidly. It also infects the host's flowers, seed capsules and seeds. GEOGRAPHICAL DISTRIBUTION: Africa: Egypt, Malawi, Morocco, Mozambique, South Africa, Tanzania, Zambia, Zimbabwe. Asia: Cyprus, India, Japan, Malaysia, Taiwan, Thailand, Turkey, USSR (Armenia, Republic of Georgia). Australasia & Oceania: Australia (New South Wales, Queensland, South Australia), New Zealand, USA (Hawaii). Europe: Austria, Bulgaria, Czechoslovakia, Denmark, France, Germany, Hungary, Italy, The Netherlands, Norway, Poland, Romania, Spain Sweden, UK, Yugoslavia. North America: Bermuda, Canada, Jamaica, Panama, Puerto Rico, USA. South America: Brazil, Uruguay. TRANSMISSION: Successful growth and sporulation of the fungus requires warm moist conditions (optimal mycelial growth is at ca 20°C), although mycelium can survive at 0°C. Transmission of conidia is usually via wind, seeds or soil. A damp leaf surface is essential for infection.


Author(s):  

Abstract A new distribution map is provided for Pyrenophora tritici-repentis (Died.) Drechsler. Hosts: wheat (Triticum spp.) and other grasses. Information is given on the geographical distribution in AFRICA, Ethiopia, Kenya, Morocco, South Africa, Tanzania, Tunisia, Uganda, ASIA, Afghanistan, Bhutan, China, Zhejiang, India, Bihar, Iran, Israel, Japan, Nepal, Thailand, Turkey, USSR ,: N. Caucasus, AUSTRALASIA & OCEANIA, Australia ,: New South Wales, EUROPE, Austria, Belgium, Cyprus, Czechoslovakia, Denmark, Finland, France, Germany, Hungary, Italy, Latvia, Poland, Romania, Spain, Sweden, Switzerland, UK, England, USSR, Byelorussia, NORTH AMERICA, Canada, Mexico, USA, CENTRAL AMERICA & WEST INDIES, Puerto Rico, SOUTH AMERICA, Bolivia, Brazil, Chile, Colombia, Ecuador, Peru.


Author(s):  

Abstract A new distribution map is provided for Verticillium theobromae (Turc.) Mason & Hughes. Hosts: on Banana (Musa). Information is given on the geographical distribution in AFRICA, Angola, Cameroon, Canary Islands, Cape Verde Islands, Egypt, Ethiopia, Ghana, Kenya, Libya, Mauritius, Morocco, Mozambique, Nigeria, Rhodesia, Sierra Leone, Somalia, South Africa, Tanzania, Uganda, Zambia, ASIA, India (MP), Iran, Israel, Lebanon, Thailand, Yemen, AUSTRALASIA & OCEANIA, Australia (Queensland, New South Wales), Fiji, EUROPE, Azores, Cyprus, Greece (Crete), Italy, NORTH AMERICA, Bermuda, CENTRAL AMERICA & WEST INDIES, Cayman Islands, Cuba, Dominica, French, Antilles, Grenada, Haiti, Honduras, Jamaica, Panama, Puerto Rico, St. Lucia, St. Vincent, Trinidad, SOUTH AMERICA, Brazil (San Paulo, Minas Gerais, Espirito Santo), Bolivia, Colombia, Guyana, Peru, Venezuela.


Author(s):  

Abstract A new distribution map is provided for Dacus tryoni[Bactrocera tryoni] (Frogg.) (Dipt., Trypetidae) (Queensland Fruit-fly) Hosts: Many deciduous and subtropical fruits. Information is given on the geographical distribution in AUSTRALIA, New South Wales, Queensland, South Australia, Victoria.


Author(s):  

Abstract A new distribution map is provided for Listronotus bonariensis (Kuschel) Coleoptera: Curculionidae Attacks Lolium spp. and other pasture grasses and cereals. Information is given on the geographical distribution in SOUTH AMERICA, Argentina, Bolivia, Brazil, Chile, Uruguay, OCEANIA, Australia, New South Wales, South Australia, Tasmania, Victoria, Western Australia, New Zealand.


Author(s):  
D. W. Minter

Abstract A description is provided for Podospora excentrica. Some information on its associated organisms and substrata, dispersal and transmission, habitats and conservation status is given, along with details of its geographical distribution (South America (Venezuela), Atlantic Ocean (Portugal (Madeira)), Australasia (Australia (New South Wales, South Australia, Victoria, Western Australia)), New Zealand, Europe (Belgium, Denmark, Germany, Ireland, Italy, Netherlands, Spain, Sweden, UK)).


Author(s):  

Abstract A new distribution map is provided for Spilocaea oleaginea (Cast.) Hughes. Hosts: Olive (Olea europea). Information is given on the geographical distribution in Africa, Algeria, Egypt, Ethiopia, Libya, Morocco, North Africa, Somalia, South Africa, Tunisia, Asia, China, Iran, Israel, Jordan, Turkey, USSR, Georgia, Australasia & Oceania, Australia, New South Wales, Europe, Cyprus, France, Greece, Italy, Crete, Sicily, Malta, Portugal, Spain, Yugoslavia, North America, USA, California, South America, Argentina, Chile, Ecuador, Peru.


Author(s):  

Abstract A new distribution map is provided for Pseudomonas syringae pv.striafaciens (Elliott) Young, Dye & Wilkie. Hosts: Oats (Avena sativa) and barley (Hordeum vulgare). Information is given on the geographical distribution in Africa, Zimbabwe, Asia, Japan, Korea, Australasia & Oceania, Australia, New South Wales, Queensland, Europe, Germany, USSR, North America, Canada, Alberta, Manitoba, Ontario, Saskatchewan, Mexico, USA, South America, Argentina, Colombia.


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