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).

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.

scholarly journals Control Approaches against Vascular Wilt Disease of Elaeis guineensis Jacq. Caused by Fusarium oxysporum f. sp. elaeidis.

2012 ◽  
Vol 3 (1) ◽  
Author(s):  
Godswill Ntsomboh Ntsefong ◽  
G. F. Ngando Ebongue ◽  
Koona Paul ◽  
Bell Joseph Martin ◽  
Youmbi Emmanuel ◽  
...  
Keyword(s):  
Fusarium Oxysporum ◽  
Palm Oil ◽  
Oil Palm ◽  
Plant Material ◽  
Elaeis Guineensis ◽  
Wilt Disease ◽  
Vascular Wilt ◽  
Resistant Plant ◽  
Elaeis Guineensis Jacq ◽  
Vascular Wilt Disease

The oil palm, Elaeis guineensis Jacq., is the most important and highest oil yielding crop in the world. Two types of oils are produced from its fruits, crude palm oil (CPO) and palm kernel oil (PKO). Palm oil is used for food purposes, oleo-chemicals, pharmaceutical purposes, health supplement and as a source of biofuel. Among the various challenges faced by farmers of this crop are diseases like Ganoderma (common in Asia), bud rot (Latin America) and vascular wilt (Africa) that affect growth and reduce oil yields. Vascular wilt caused by Fusarium oxysporum f. sp. elaeidis results in serious damages on oil palm culture in Africa. Various methods of control which have been tried against the disease are: selection of resistant or tolerant plant material, soil renewal, chemical control, stimulation of defense reactions, and the use of cover crop and potassium (K) fertilizer. The only most feasible and eco-friendly control method presently considered to be most effective against the disease is research for resistant plant material through artificial inoculation of plantlets in the pre-nursery with pathogenic fungus. Selection is based on the sensitivity of oil palm strains to the fungal inoculum. The present review outlines the importance of oil palm and the various approaches to fight against vascular wilt disease, with emphasis on biological control by the use of resistant plant material.

Pseudospiropes elaeidis. [Distribution map].

1989 ◽  
Author(s):  
Keyword(s):  
Sierra Leone ◽  
Geographical Distribution ◽  
Oil Palm ◽  
Ivory Coast ◽  
Elaeis Guineensis ◽  
Distribution Map ◽  
Guinea Bissau ◽  
New Distribution

Abstract A new distribution map is provided for Pseudospiropes elaeidis (Steyaert) Deighton. Hosts: Oil palm (Elaeis guineensis). Information is given on the geographical distribution in Africa, Angola, Benin, Cameroon, Congo, Gabon, Ghana, Guinea, Guinea-Bissau, Ivory Coast, Nigeria, Sao Tome, Senegal, Sierra Leone, Sudan, Tanzania, Togo, Zaire.

Cercospora elaeidis. [Distribution map].

1972 ◽  
Author(s):  
Keyword(s):  
Sierra Leone ◽  
Geographical Distribution ◽  
Oil Palm ◽  
Ivory Coast ◽  
Elaeis Guineensis ◽  
Distribution Map ◽  
New Distribution

Abstract A new distribution map is provided for Cercospora elaeidis Steyaert. Hosts: Oil palm (Elaeis guineensis). Information is given on the geographical distribution in AFRICA, Angola, Cameroon, Congo Republic, Dahomey, Ghana, Guinea, Ivory Coast, Nigeria, Portuguese Guinea, Rhodesia, Sao Tomé, Senegal, Sierra Leone, Sudan, Tanzania, Zaire Republic (Congo).

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

1996 ◽  
Author(s):  
D. Brayford
Keyword(s):  
Fusarium Oxysporum ◽  
Geographical Distribution ◽  
Water Flow ◽  
Contaminated Soil ◽  
Vascular Wilt ◽  
Planting Materials ◽  
Local Dispersal

Abstract A description is provided for Fusarium oxysporum f. sp. dianthi. Information is included on the disease caused by the organism, its transmission, geographical distribution, and hosts. HOSTS: Dianthus spp. (carnation, pinks, sweet williams), Lychnis chalcedoica L. (Caryophyllaceae) (Armstrong & Armstrong, 1954; Hood & Stewart, 1957). DISEASE: Vascular wilt. GEOGRAPHICAL DISTRIBUTION: Widespread where Dianthus is grown. TRANSMISSION: Via infected planting materials and contaminated soil. Local dispersal is by water flow and splash droplets containing slimy macro- or microconidia.

Fusarium oxysporum f.sp. elaeidis. [Distribution map].

1970 ◽  
Author(s):  
Keyword(s):  
South America ◽  
Fusarium Oxysporum ◽  
Geographical Distribution ◽  
Oil Palm ◽  
Elaeis Guineensis ◽  
Distribution Map ◽  
New Distribution

Abstract A new distribution map is provided for Fusarium oxysporum f.sp. elaeidis Toovey. Hosts: Oil palm (Elaeis guineensis). Information is given on the geographical distribution in AFRICA, Cameroon, Congo, Nigeria, SOUTH AMERICA, Colombia.

Trachysphaera fructigena. [Descriptions of Fungi and Bacteria].

1970 ◽  
Author(s):  
P. Holliday
Keyword(s):  
Geographical Distribution ◽  
Theobroma Cacao ◽  
Ivory Coast ◽  
Central Africa ◽  
Fruit Rot ◽  
Minor Importance ◽  
Banana Fruit ◽  
Ripe Fruit ◽  
West And Central Africa ◽  
Coffea Liberica

Abstract A description is provided for Trachysphaera fructigena. Information is included on the disease caused by the organism, its transmission, geographical distribution, and hosts. HOSTS: On Theobroma cacao, Coffea liberica, banana. Also on Mimusops elenpi and M. commersonii (41: 358). DISEASES: Mealy pod of cacao, fruit rot of coffee and bananas. Fairly rapidly developing brown to black rot followed by the dense conidial masses on the surface, at first white, becoming pink to brown and covering most of the fruit. On cacao and coffee of minor importance, though heavy losses in the latter have been reported from the Ivory Coast (14: 153). Young fruit may be more susceptible (33: 757); can only infect wounded cacao pods and spread of the rot is quicker on ripe fruit (40: 33). The fungus is of greater importance on bananas, both on the fruit in the field and in the ripening rooms, causing a general wet rot. It is probably associated with other funeal invaders of banana fruit (34: 657). GEOGRAPHICAL DISTRIBUTION: Restricted to tropical west and central Africa (CMI Map 249, ed. 2, 1957). Reported from Malagasy Republic in 1960 (40: 405). It can occur in ripening rooms of countries importing bananas from Africa. TRANSMISSION: Conidia are presumably air dispersed, but spread by ants and snails has been suggested (8: 28).

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

1996 ◽  
Author(s):  
D. Brayford
Keyword(s):  
Medicago Sativa ◽  
Fusarium Oxysporum ◽  
Geographical Distribution ◽  
Water Flow ◽  
Contaminated Soil ◽  
Climatic Conditions ◽  
Lupinus Luteus ◽  
Vascular Wilt ◽  
Yellow Lupin ◽  
Local Dispersal

Abstract A description is provided for Fusarium oxysporum f. sp. medicaginis. Information is included on the disease caused by the organism, its transmission, geographical distribution, and hosts. HOSTS: Medicago sativa L. (lucerne, alfalfa). It may also cause wilt symptoms on some cultivars of yellow lupin (Lupinus luteus L.) (Armstrong & Armstrong, 1964). DISEASE: Vascular wilt. GEOGRAPHICAL DISTRIBUTION: Widespread where lucerne is grown, but disease is favoured by warm climatic conditions. Via seed and movement of contaminated soil. Local dispersal is by water flow and splash droplets carrying macro- and microconidia.

Sign in / Sign up

Export Citation Format

Share Document