Fusarium oxysporum f. sp. batatas. [Descriptions of Fungi and Bacteria].

1992 ◽  
Author(s):  
D. Brayford
Keyword(s):  
Fusarium Oxysporum ◽  
Geographical Distribution ◽  
Plant Material ◽  
Ipomoea Batatas ◽  
Infected Plant ◽  
Vascular Wilt ◽  
Tropical Regions ◽  
Soil P ◽  
Wide Range ◽  
Infected Plant Material

Abstract A description is provided for Fusarium oxysporum f. sp. batatas. Information is included on the disease caused by the organism, its transmission, geographical distribution, and hosts. HOSTS: Ipomoea batatas (sweet potato), Nicotiana (tobacco). The fungus may infect a wide range of other plants in Convolvulaceae (63, 1065) and other families, sometimes without causing wilt symptoms. DISEASE: Vascular wilt, sometimes called stem rot. GEOGRAPHICAL DISTRIBUTION: Brazil (62, 525), China, Hawaii, India, Japan, Malawi, New Zealand. The disease occurs in temperate rather than tropical regions. TRANSMISSION: The fungus may survive in soil for many years as chlamydospores. Transmission may occur by means of infected plant material used for propagation, or through contaminated soil.

Cylindrocarpon musae. [Descriptions of Fungi and Bacteria].

1987 ◽  
Author(s):  
D. Brayford
Keyword(s):  
Costa Rica ◽  
North America ◽  
South America ◽  
Geographical Distribution ◽  
Contaminated Soil ◽  
Plant Material ◽  
Infected Plant ◽  
Long Distance ◽  
Soil P ◽  
Infected Plant Material

Abstract A description is provided for Cylindrocarpon musae. Information is included on the disease caused by the organism, its transmission, geographical distribution, and hosts. HOSTS: Musa AAA (Cavendish). DISEASE: Rotting of fleshy roots and rhizomes of banana. GEOGRAPHICAL DISTRIBUTION: Asia: Philippines; North America: Costa Rica, Guadeloupe, Martinique, Panama; South America: Colombia, Ecuador. TRANSMISSION: The fungus probably survives as 'chlamydospores' in soil. Its slimy spores may be dispersed by water. Long distance spread may potentially occur by transportation of infected plant material or contaminated soil.

Ganoderma applanatum. [Descriptions of Fungi and Bacteria].

1975 ◽  
Author(s):  
R. L. Steyaert
Keyword(s):  
Geographical Distribution ◽  
Infected Plant ◽  
Northern Iran ◽  
Southern Limit ◽  
Soil P ◽  
Ganoderma Applanatum ◽  
Wide Range ◽  
The Usa ◽  
Infected Plant Material ◽  
Root Contact

Abstract A description is provided for Ganoderma applanatum. Information is included on the disease caused by the organism, its transmission, geographical distribution, and hosts. HOSTS: A very wide range of broad-leaved and coniferous trees. As much confusion has arisen between G. applanatum and G. adspersum earlier references must be accepted only with care as to the hosts. It is the authors observation that G. applanatum is more frequent in the woodland biotype than in orchards, garden and roadside plantations while G. adspersum seems to be more frequent in the latter. GEOGRAPHICAL DISTRIBUTION: Throughout the northern hemisphere temperate zone. The northern limit follows the tree line. The southern limit is Florida in the USA, the Mediterranean sea in Europe, Northern Iran, Northern Pakistan, southern slopes of the Himalayas, but a specimen has been obtained from Bombay in India. In Pakistan and India it overlaps slightly with the range of G. tornatum (CMI Descript. 447). TRANSMISSION: Transmission is probably confined to air-borne spores and root contact with infected plant material in the soil.

Fusarium oxysporum f. sp. elaeidis. [Descriptions of Fungi and Bacteria].

1992 ◽  
Author(s):  
D. Brayford
Keyword(s):  
Fusarium Oxysporum ◽  
Geographical Distribution ◽  
Contaminated Soil ◽  
Oil Palm ◽  
Ivory Coast ◽  
Plant Material ◽  
Elaeis Guineensis ◽  
Central Africa ◽  
Vascular Wilt ◽  
West And Central Africa

Abstract A description is provided for Fusarium oxysporum f. sp. elaeidis. Information is included on the disease caused by the organism, its transmission, geographical distribution, and hosts. HOSTS: Elaeis guineensis (Oil palm). May also infect E. oleifera, E. madagascariensis and E. melanococca. DISEASE: Vascular wilt. GEOGRAPHICAL DISTRIBUTION: West and central Africa: Cameroon, Congo, Ivory Coast, Nigeria, Zaire. Possibly Colombia. TRANSMISSION: Contaminated soil or plant material. Potentially by means of seed (52, 4182).

Pleospora herbarum. [Descriptions of Fungi and Bacteria].

1967 ◽  
Author(s):  
C. Booth
Keyword(s):  
Medicago Sativa ◽  
Geographical Distribution ◽  
Leaf Spot ◽  
Broad Bean ◽  
Net Blotch ◽  
Tropical Regions ◽  
Soil P ◽  
Wide Range ◽  
Ring Spot ◽  
Severe Leaf

Abstract A description is provided for Pleospora herbarum. Information is included on the disease caused by the organism, its transmission, geographical distribution, and hosts. HOSTS: On a wide range of hosts including apple, ash, broad bean, clover, endive, gladiolus, gramineae, lettuce, lupin, muskmelon, onion, Onobrychis, Medicago sativa, mangold, tomato, Trifolium, Vicia (40: 230). DISEASES: Leaf spot of mangold, clover (Trifolium), lucerne (Medicago sativa), endive, lettuce, onion seedlings and gladiolus, net blotch of field and broad bean (Vicia), ring spot of sanfoin (Onobrychis) foot rot of tomato. Severe leaf spot on muskmelon may cause leaf fall and sun scald of fruit (37: 625). Lesions caused by other fungi may also be colonized as on lucerne (38: 11) or be associated with some other disease complex such as Pseudomonas savastanoi on ash (36: 144). GEOGRAPHICAL DISTRIBUTION: World-wide; very common in temperate and sub-tropical regions. TRANSMISSION: Generally air-borne as ascospores or conidia. These penetrate the leaf or petiole via stomata (37: 365). May also occur on seeds (38: 146) and in soil.

Fusarium oxysporum f. sp. vasinfectum. [Descriptions of Fungi and Bacteria].

1992 ◽  
Author(s):  
D. Brayford
Keyword(s):  
South Africa ◽  
Puerto Rico ◽  
Glycine Max ◽  
Nicotiana Tabacum ◽  
Fusarium Oxysporum ◽  
Geographical Distribution ◽  
Central African Republic ◽  
Lupinus Luteus ◽  
Vascular Wilt ◽  
Wide Range

Abstract A description is provided for Fusarium oxysporum f. sp. vasinfectum. Information is included on the disease caused by the organism, its transmission, geographical distribution, and hosts. HOSTS: Cotton (Gossipium spp., including G. hirsutum, G. barbadense, G. arboreum, G. herbaceum), Chinese lantern (Physalis alkekengi), lucerne (alfalfa) (Medicago sativa), lupin (Lupinus luteus), okra (Abelmoschus esculentus), soyabean (Glycine max), tobacco (Nicotiana tabacum). A wide range of other plants may also be infected without external symptoms (51, 2512). DISEASE: Vascular wilt. GEOGRAPHICAL DISTRIBUTION: Widespread (IMI map 362). Africa: Central African Republic, Congo, Egypt, Ethiopia, Israel, Madagascar, Republic of South Africa, Senegal, Somalia, Sudan, Tanzania, Uganda, Zimbabwe. America: Argentina, Brazil, Chile, Colombia, Guatemala, Mexico, Nicaragua, Paraguay, Peru, Puerto Rico, Salvador, St. Kitts-Nevis, St. Vincent, USA (south eastern states), Venezuela. Asia: Burma, China, India, Iran, Iraq, Pakistan, Taiwan, USSR. Europe: France, Greece, Italy, Romania, Yugoslavia. TRANSMISSION: The fungus is soil borne and may be transmitted by seed (11, 713; 32, 186) and in irrigation water (62, 4911).

Phialophora asteris. [Descriptions of Fungi and Bacteria].

1976 ◽  
Author(s):  
D. L. Hawksworth
Keyword(s):  
New Zealand ◽  
Geographical Distribution ◽  
Infected Plant ◽  
Vascular Wilt ◽  
Plant Debris ◽  
Soil P

Abstract A description is provided for Phialophora asteris. Information is included on the disease caused by the organism, its transmission, geographical distribution, and hosts. HOSTS: Aster novi-belgii cultivars (michaelmas daisy) and, more rarely, A. tradescantii. Cultivars of Callistephus chinensis are also very susceptible with A. amellus, A. linosyris and Bellis perennis moderately so; A. acris and A. novae-angliae appear to be resistant (Burge & Isaac, 1974). DISEASE: Vascular wilt of michaelmas daisies, aster wilt. GEOGRAPHICAL DISTRIBUTION: Europe (UK, Netherlands, Denmark); New Zealand. TRANSMISSION: Presumably by splash dispersed conidia and by infected plant debris in the soil.

Fusarium oxysporum f.sp. elaeidis. [Descriptions of Fungi and Bacteria].

1970 ◽  
Author(s):  
P. Holliday
Keyword(s):  
Fusarium Oxysporum ◽  
Geographical Distribution ◽  
Oil Palm ◽  
Vascular Tissue ◽  
Elaeis Guineensis ◽  
Vascular Wilt ◽  
Soil P ◽  
Acute Form ◽  
Leaf Necrosis ◽  
Internal Necrosis

Abstract A description is provided for Fusarium oxysporum f.sp. elaeidis. Information is included on the disease caused by the organism, its transmission, geographical distribution, and hosts. HOSTS: Elaeis guineensis. DISEASE: A vascular wilt of the oil palm was first reported from Africa (26: 103; 28: 124). In young palms the first symptom is an extensive chlorosis in some of the central leaves (4th-15th). This is followed by leaf necrosis (giving a flat-topped appearance) and death within a year. In mature palms leaf wilt and necrosis and breaking of the rachis may be rapid, causing death in a few months (acute form). But in the chronic form the progressive dying of the crown inwards may be very slow with new, though smaller, leaves being produced. The vascular tissue in roots and stems becomes orange, darkening progressively to black. It is very characteristic of the disease that the internal necrosis is restricted to the xylem region. Elaeis madagascariensis and E. melanococca have also been found to be affected (37: 52). GEOGRAPHICAL DISTRIBUTION: First found in the Congo, then later in Nigeria (27: 523), Cameroon (40: 148) and Colombia (46, 3389). TRANSMISSION: Presumably through soil.

Fusarium oxysporum f. sp. cubense. [Descriptions of Fungi and Bacteria].

1992 ◽  
Author(s):  
D. Brayford
Keyword(s):  
Fusarium Oxysporum ◽  
Sierra Leone ◽  
Geographical Distribution ◽  
Vascular Wilt ◽  
Distribution Map ◽  
Plant Debris ◽  
Panama Disease ◽  
Soil P ◽  
Planting Material ◽  
South Brazil

Abstract A description is provided for Fusarium oxysporum f. sp. cubense. Information is included on the disease caused by the organism, its transmission, geographical distribution, and hosts. HOSTS: Musa sp., Heliconia sp. DISEASE: Panama disease (vascular wilt) of banana. Also vascular wilt of abaca (Musa textilis). GEOGRAPHICAL DISTRIBUTION: Widespread in tropical and subtropical regions. Africa: Burundi, Cameroun, Canary Is., Ghana, Kenya, Madagascar, Malawi, Mauritius, Mozambique (50, 3049), Nigeria, Republic of South Africa, Rwanda, Sierra Leone, Tanzania (incl. Zanzibar), Uganda, Zaire. America: North: Florida (68, 905); South: Brazil, Costa Rica, Cuba (56, 4615), Dominica, Guadeloupe, Jamaica. Australasia: Australia, Brunei (51, 3059), Guam (60, 3258), India (68, 5699; 69, 657), Indonesia, Philippines, Sri Lanka, Taiwan, Thailand. IMI Distribution Map 31. TRANSMISSION: Through human transportation of infected planting material, plant debris or soil.

Acidovorax konjaci. [Descriptions of Fungi and Bacteria].

1994 ◽  
Author(s):  
G. S. Saddler
Keyword(s):  
Geographical Distribution ◽  
Leaf Spot ◽  
Plant Material ◽  
Infected Plant ◽  
Leaf Blight ◽  
Bacterial Leaf Blight ◽  
Plant Debris ◽  
Plant Leaf ◽  
Amorphophallus Konjac ◽  
Infected Plant Material

Abstract A description is provided for Acidovorax konjaci. Information is included on the disease caused by the organism, its transmission, geographical distribution, and hosts. HOST: Amorphophallus konjac (konjac or konnyaku). DISEASE: Bacterial leaf blight of the konjac plant; leaf spot and leaf blight. Under severe conditions petioles are infected and wilting of plants and rotting of roots may ensue. GEOGRAPHICAL DISTRIBUTION: Japan. TRANSMISSION: The bacteria can survive on infected plant material for more than a year and the corm can harbour infection for six months. Plant debris or previously infected corms are the most likely infection sources (Hayashi, 1989). Secondary dissemination occurs through the action of wind and rain (Hayashi, 1991).

Fusarium oxysporum f. sp. lini. [Descriptions of Fungi and Bacteria].

1996 ◽  
Author(s):  
D. Brayford
Keyword(s):  
Fusarium Oxysporum ◽  
Geographical Distribution ◽  
Water Flow ◽  
Contaminated Soil ◽  
Infected Plant ◽  
Vascular Wilt ◽  
Stellaria Media ◽  
Plant Parts ◽  
Sonchus Arvensis ◽  
Local Dispersal

Abstract A description is provided for Fusarium oxysporum f. sp. lini. Information is included on the disease caused by the organism, its transmission, geographical distribution, and hosts. HOSTS: Linum spp., including L. usitatissimum L. (flax, linseed), L. angustifolium Huds. and L. crepitans Boemingh. (Kommedahl et al., 1970). It has also been reported to colonize roots of some weeds, including Veronica persica Poir., Stellaria media Cyrill., Lamium purpureum L., Capsella bursa-pastoris Medic. and Sonchus arvensis[Sonchus wightianus] L. (67, 1649). DISEASE: Vascular wilt. GEOGRAPHICAL DISTRIBUTION: Widespread where Linum is cultivated. TRANSMISSION: In seed and infected plant parts. Also by movement of contaminated soil during cultivation. Local dispersal is by water flow and splash droplets containing macro- or microconidia.

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