Cercospora mikaniicola. [Descriptions of Fungi and Bacteria].

Author(s):  
H. Y. M. Leung

Abstract A description is provided for Cercospora mikaniicola. Information is included on the disease caused by the organism, its transmission, geographical distribution, and hosts. HOSTS: Mikania cordata, Mikania micrantha (Asteraceae). DISEASE: Leaf spot and stem canker. GEOGRAPHICAL DISTRIBUTION: Bangladesh, Brazil, Cuba, Colombia, Fiji, Guadalcanal, Hong Kong, India, Jamaica, Malaysia, Niue, Pakistan, Papua New Guinea, Puerto Rico, Samoa, Sierra Leone, Singapore, Solomon Islands, Tuvalu, USA (Florida), Vanuatu. TRANSMISSION: Conidia are presumably air-dispersed but there are no detailed studies.

Author(s):  
A. Sivanesan

Abstract A description is provided for Cochliobolus eragrostidis. Information is included on the disease caused by the organism, its transmission, geographical distribution, and hosts. HOSTS: Acacia, Agave, Allium, Alysicarpus, Amorphophallus, Anacardium, Arachis, Areca, Billbergia, Calamus, Callitris, Calotropis, Camellia, Cananga, Capsicum, Citrullus, Citrus, Clerodendron, Cocos, Coffea, Colocasia, Cymbopogon, Dendrobium, Digitaria, Dioscorea, Dracaena, Durio, Elaeis, Eragrostis, Eucalyptus, Euphorbia, Furcraea, Gladiolus, Glycine, Gossypium, Heliconia, Hevea, Hystrix, Ipomoea, Kaempferia, Lycopersicon, Mangifera, Manihot, Mystroxylon, Musa, Neyraudia, Oldenlandia, Opuntia, Oryza, Panicum, Pennisetum, Pentas, Phalaenopsis, Phaseolus, Pinus, Polygala, Pueraria, Raphia, Raphanus, Rhodomyrtus, Rhoeo, Rottboellia, Saccharum, Sesamum, Sorghum, Spinacia, Sporobolus, Stylosanthes, Theobroma, Thrasya, Tradescantia, Trichosanthes, Triplochiton, Triticum, Vanda, Vigna, Zea, Zingiber and soil. DISEASE: Leaf spots. GEOGRAPHICAL DISTRIBUTION: Australia, Bangladesh, Belize, Brazil, Brunei, Burma, Colombia, Cuba, Fiji, Ghana, Guinea, Honduras, Hong Kong, India, Indonesia, Japan, Kenya, Kuwait, Malaysia, New Zealand, Nigeria, Papua New Guinea, Puerto Rico, Sierra Leone, Singapore, Solomon Islands, Sri Lanka, Trinidad, USA, Zambia, Zaire. TRANSMISSION: By wind-borne conidia.


Author(s):  
A. Sivanesan

Abstract A description is provided for Cochliobolus pallescens. Information is included on the disease caused by the organism, its transmission, geographical distribution, and hosts. HOSTS: Common on many graminicolous and non-graminicolous hosts. Important cereals and grasses include Eleusine, Hordeum, Oryza, Panicum, Paspalum, Pennisetum, Poa, Saccharum, Setaria, Sorghum, Triticum and Zea economically important dicot hosts include Allium (59, 4867), Arachis (53, 1647), Brassica (66, 3075), Canna, Calendula, Calotropis (44, 1832; 66, 3587), Carica (61, 5129), Cinnamomum, Citrus (68, 843), Coriandrum, Dahlia, Fagopyrum (64, 2425), Gaillardia, Hevea (56, 1257; 67, 5560), Musa (54, 4051), Solanum (50, 3484). DISEASE: Leaf spots of cereals, black point of wheat (44, 102), leaf spot and on stems of rubber (56, 1257; 67, 5560), ear rot of barley (62, 1005), rot of garlic (59, 4867). GEOGRAPHICAL DISTRIBUTION: Australia, Bangladesh, Brunei, Burma, Canada, Colombia, Cuba, Denmark, Egypt, Ethiopia, Fiji, Ghana, Guinea, Hong Kong, India, Indonesia, Iran, Jamaica, Japan, Kenya, Malaysia, Malawi, Nepal, Nigeria, Pakistan, Papua New Guinea, Peru, Philippines, Sierra Leone, Singapore, Solomon Islands, Somalia, Sri Lanka, Swaziland, Sudan, Taiwan, Tanzania, Thailand, Trinidad, USA, USSR, Venezuela, Windward Islands, Zambia, Zimbabwe. TRANSMISSION: By wind-borne conidia and seed-borne.


Author(s):  
K. D. Hyde

Abstract A description is provided for Stigmina mangiferae. Information is included on the disease caused by the organism, its transmission, geographical distribution, and hosts. HOSTS: Mangifera indica. DISEASE: Leaf spot, black, angular and relatively small (0.5-6.0 mm diam.), each surrounded by a raised rim, and a wide greenish or yellowish halo. GEOGRAPHICAL DISTRIBUTION: Australia, Cook Islands, Dominica, Fiji, Ghana, Honduras, Indonesia, Jamaica, Japan, Malawi, Malaysia, Mexico, Nepal, New Caledonia, Nigeria, Papua New Guinea, Sierra Leone, Solomon Islands, Sri Lanka, Sudan, Tanzania, Taiwan, Tongo, Trinidad, Uganda, Vanuatu, Venezuela, Western Samoa, Zambia. TRANSMISSION: By windborne conidia.


Author(s):  
J. E. M. Mordue

Abstract A description is provided for Pestalotiopsis mangiferae. Information is included on the disease caused by the organism, its transmission, geographical distribution, and hosts. HOSTS: On Mangifera indica; also on Anacardium occidentale, Combretum decandrum, Eucalyptus spp., Mimusops spp., Vitis vinifera and many other unrelated host plants. DISEASE: Grey leaf spot of Mangifera indica. The spots vary in size from a few mm to several cm in length, are usually sharply delimited by a dark, raised border, and are silvery grey above and grey to brown below; leaf spots on other hosts are similar. Brown spot or rot of mango fruits is also known. GEOGRAPHICAL DISTRIBUTION: Ghana, Nigeria, Sierra Leone, Tanzania, Uganda, Zaire, Zambia; Bangladesh, Brunei, Burma, Hong Kong, India, Malaysia, Nepal, Sabah, Solomon Islands, Sri Lanka; Australia; Dominican Republic; Venezuela. TRANSMISSION: Inoculation studies with conidia and mycelium have shown P. mangiferae to be a weak parasite, capable of infecting young injured leaves, injured fruits, older uninjured leaves and healthy fruits if in contact with diseased tissue (35, 378; 40, 421). It has been isolated from soil, but the possibility of transmission through soil has not been investigated.


Author(s):  
E. Punithalingam

Abstract A description is provided for Phoma sorghina. Information is included on the disease caused by the organism, its transmission, geographical distribution, and hosts. HOSTS: Gramineae and all kinds of plants. Also isolated from soil, air and various animal sources. DISEASE: A minor leaf spot of cereals and grasses. The visible symptoms vary considerably; on sorghum leaves spots are usually irregular or rounded, yellowish-brown or grey with definite reddish-purple margins or indefinite in outline, reaching 1 cm or more in width. Pycnidia develop within spots on leaves, glumes and seeds. Also the fungus has been implicated with pre- and post-emergence death of seedlings of Macroptilium and Sylosanthes species (54, 1779) crown rot of bananas (61, 3556), leaf spot of Agave americana and stem rot of Euphorbia tirucalli (63, 3383), brown stem canker of Leucosperum cordifolium (56, 253). GEOGRAPHICAL DISTRIBUTION: A ubiquitous fungus occurring in tropical and subtropical regions. Africa (Botswana, Cameroon, Egypt, Ethiopia, Gambia, Kenya, Malawi, Mauritius, Mozambique, Nigeria, Senegal, Sierra Leone, South Africa, Sudan, Tanzania, Togo, Uganda, Zaire, Zambia, Zimbabwe); Asia (Bangladesh, Brunei, Burma, China, Hong Kong, India, Indonesia (Irian Jaya), Laos, Malaysia, Nepal, Pakistan, Saudi Arabia, Sri Lanka, Taiwan, USSR); Australasia and Oceania (Australia, Hawaii, New Zealand, Papua New Guinea, Solomon Islands); Europe (Germany, Portugal, Italy, UK); North America (Canada, USA); Central America and West Indies (Antigua, Guatemala, Honduras, Jamaica, Nicaragua, Puerto Rico, Trinidad); South America (Argentina, Bolivia, Brazil, Colombia). TRANSMISSION: Probably by contaminated seed; the fungus has been found on or isolated from several seed samples (1, 289; 33, 599; 47, 2153; 54, 1779; 60, 367; 61, 4102). In Taiwan P. sorghina has been found to be transmitted from seed to seedlings (62, 4281). The fungus has also been claimed to persist on trash and weed hosts and remain viable up to 1 yr but lose its viability after 2 yr storage on dry infected leaves (Koch & Rumbold, 1921).


Author(s):  

Abstract A new distribution map is provided for Cladosporium colocasiae Sawada. Hosts: Colocasia esculenta, C. antiquorum and other Colocasia spp. Information is given on the geographical distribution in AFRICA, Ethiopia, Ghana, Guinea, Mauritius, Nigeria, ASIA, Brunei, China ,: Sichuan, Hong Kong, India, Madhya Pradesh, Kerala, Indonesia, West Irian, Japan, Korea, Malaysia, Sabah, Sarawak, Nepal, Pakistan, Taiwan, AUSTRALASIA & OCEANIA, Fiji, Hawaii, New, Caledonia, Papua New Guinea, Solomon Islands, Tahiti, Vanuatu, EUROPE, Azores, CENTRAL AMERICA & WEST INDIES, Barbados, Puerto Rico.


Author(s):  
M. B. Ellis

Abstract A description is provided for Drechslera incurvata. Information is included on the disease caused by the organism, its transmission, geographical distribution, and hosts. HOSTS: Cocos nucifera. DISEASE: A leaf spot of young coconut (Cocos nucifera). The spots are at first small, oval, brown; enlarging and becoming pale buff in the centre with a broad, dark brown margin. In severe attacks the edges of leaves become extensively necrotic. GEOGRAPHICAL DISTRIBUTION: Apart from records from Jamaica and Seychelles the fungus has been reported only from S.E. Asia, Australasia and Oceania: British Solomon Islands, Fiji, French Polynesia, Malaysia (W., Sabah, Sarawak), New Caledonia, New Hebrides, Papua-New Guinea, Philippines, Sri Lanka, Vietnam and Thailand. TRANSMISSION: Presumably air dispersed.


Author(s):  
E. Punithalingam

Abstract A description is provided for Phomopsis cocoina. Information is included on the disease caused by the organism, its transmission, geographical distribution, and hosts. HOSTS: Cocos nucifera and Corypha umbraculifera. DISEASE: Leaf spot of coconut and recently found to be associated with stem bleeding of coconut palms (personal communication). Also perhaps involved in the rot of coconut husk. GEOGRAPHICAL DISTRIBUTION: Africa (Kenya, Mauritius, Seychelles); Asia (India, Malaysia (Sabah, Sarawak), Nepal, Sri Lanka); Australasia and Oceania (Guam Island, Papua New Guinea, Solomon Islands); West Indies (Jamaica, Puerto Rico, Trinidad). TRANSMISSION: No specific studies reported; presumably by conidia spread by rain splash.


Author(s):  

Abstract A new distribution map is provided for Phyllachora pterocarpi H. Sydow. Hosts: Pterocarpus spp. Information is given on the geographical distribution in AFRICA, Ghana, Guinea, Malawi, Mozambique, Nigeria, Sierra Leone, South Africa, Transvaal, Tanzania, Togo, Zambia, Zimbabwe, ASIA, Brunei, Indonesia, Java, Peninsular Malaysia, Malaysia, Singapore, AUSTRALASIA & OCEANIA, New Caledonia, Papua New Guinea, Solomon Islands.


Author(s):  
K. D. Hyde

Abstract A description is provided for Aristastoma camarographioides. Information is included on the disease caused by the organism, its transmission, geographical distribution, and hosts. HOSTS: Glycine max and Pueraria spp. DISEASE: Brown to grey, circular to irregular leaf spot on Pueraria spp. GEOGRAPHICAL DISTRIBUTION: India, Irian Jaya, Papua New Guinea, Solomon Islands. TRANSMISSION: No research is available, but almost certainly by air-borne dispersal of conidia.


Sign in / Sign up

Export Citation Format

Share Document