Fusarium stilboides. [Descriptions of Fungi and Bacteria].

1964 ◽  
Author(s):  
C. Booth
Keyword(s):  
Geographical Distribution ◽  
Coffea Arabica ◽  
Collar Rot ◽  
Rain Drop ◽  
Soil Level

Abstract A description is provided for Fusarium stilboides. Information is included on the disease caused by the organism, its transmission, geographical distribution, and hosts. HOSTS: On Coffea arabica. DISEASES: Storey's bark disease in which suckers are attacked at their base and finally killed; scaly bark in which mature main stems are attacked through wounds left after pruning-off laterals and are subsequently girdled; and collar rot, where stems are slowly girdled at or slightly above soil level leading to death of the plants. GEOGRAPHICAL DISTRIBUTION: Tanganyika, Nyasaland and possibly Madagascar. TRANSMISSION: Mainly by rain-drop splash (41: 7).

Phomopsis oryzae-sativae. [Descriptions of Fungi and Bacteria].

1980 ◽  
Author(s):  
E. Punithalingam
Keyword(s):  
Geographical Distribution ◽  
Leaf Blade ◽  
Leaf Sheath ◽  
Advanced Stage ◽  
Collar Rot ◽  
Oryza Saliva ◽  
Water Splash

Abstract A description is provided for Phomopsis oryzae-sativae. Information is included on the disease caused by the organism, its transmission, geographical distribution, and hosts. HOST: Oryza saliva. DISEASE: Collar rot of rice, appearing at the end of tillering stage. Visible symptoms are small dark brown lesions at the base of the auricle of the topmost fully expanded leaf. These lesions enlarge to cover the whole auricle and in the advanced stage lesions extend to the adjacent parts of the leaf sheath and leaf blade. Within 14 days the blade joint at the top of leaf sheath turns dark brown and then rots, causing the leaf blade to drop off (Kanjanasoon, 1962). GEOGRAPHICAL DISTRIBUTION: Asia (Thailand). TRANSMISSION: No studies reported. Conidia presumably dispersed by water splash.

Hemileia coffeicola. [Descriptions of Fungi and Bacteria].

1964 ◽  
Author(s):  
G. F. Laundon
Keyword(s):  
Geographical Distribution ◽  
Coffea Arabica ◽  
Northern Nigeria ◽  
Coffee Rust ◽  
Sao Tome And Principe ◽  
The Common

Abstract A description is provided for Hemileia coffeicola. Information is included on the disease caused by the organism, its transmission, geographical distribution, and hosts. HOSTS: On Coffea arabica; also on C. abeokutae, C. aruwimiensis, C. canephora, and C. liberica. DISEASE: Coffee rust. Producing a dusty coating of orange-coloured urediospores completely covering the undersides of the leaves, in contrast to the common coffee rust caused by H. vastatrix, which produces rounded blotches. There is at first no accompanying discoloration of the upper surface of the leaf; however, infected leaves eventually turn yellow and become desiccated. GEOGRAPHICAL DISTRIBUTION: Sao Tome and Principe Islands, Cameroon Republic, Northern Nigeria and Uganda.

Nectria crotalariae. [Descriptions of Fungi and Bacteria].

1974 ◽  
Author(s):  
A. Peerally
Keyword(s):  
Geographical Distribution ◽  
Root Rot ◽  
Carica Papaya ◽  
Liriodendron Tulipifera ◽  
Acacia Koa ◽  
Collar Rot ◽  
Collar Region ◽  
Root Necrosis ◽  
Tephrosia Vogelii ◽  
Crown Roots

Abstract A description is provided for Nectria crotalariae. Information is included on the disease caused by the organism, its transmission, geographical distribution, and hosts. HOSTS: Acacia koa, Arachis hypogaea, Carica papaya, Crotalaria anagyroides, Liriodendron tulipifera and Tephrosia vogelii. DISEASE: Causes a collar rot of Crotalaria anagyroides and Tephrosia vogelii (29, 537), and a peg, pod and root necrosis of groundnut in Georgia (USA), a disease which has been named Cylindrocladium black rot of groundnuts. The diseased groundnut plants in the field were chlorotic and wilted and exhibited blighting of the leaf tips and margins. Chlorosis and wilting of the lateral foliage were usually less extensive than those of the erect primary branches (46, 1159). Reported as causing a severe root rot on potted Liriodendron tulipifera seedlings (49, 3016). In Hawaii the pathogen has been reported to cause a collar rot of Carica papaya and Acacia koa (Nishijima & Aragaki, 1973). On Carica papaya the diseased seedlings were characterized by stunting, chlorosis or loss of leaves and rotting of the collar region and crown roots. In glasshouse tests 5 cultivars of flue-cured tobacco proved to be highly susceptible to the pathogen while from 4 cultivars of cotton not visibly infected, the pathogen was isolated from roots (Rowe & Beute, 1973). GEOGRAPHICAL DISTRIBUTION: Hawaii, Sri Lanka and USA. TRANSMISSION: The pathogen is soil-borne.

Meloidogyne izalcoensis. [Distribution map].

2018 ◽  
Author(s):  
Keyword(s):  
El Salvador ◽  
Central America ◽  
Geographical Distribution ◽  
Coffea Arabica ◽  
Distribution Map ◽  
Main Host ◽  
New Distribution

Abstract A new distribution map is provided for Meloidogyne izalcoensis Carneiro, Almeida, Gomes and Hernandez. Tylenchida: Meloidogynidae. Main host: coffee (Coffea arabica). Information is given on the geographical distribution in Africa (Benin, Kenya and Tanzania) and Central America and Caribbean (El Salvador).

Gibberella baccata. [Descriptions of Fungi and Bacteria].

1971 ◽  
Author(s):  
C. Booth
Keyword(s):  
Geographical Distribution ◽  
World Wide ◽  
Pitch Canker ◽  
Collar Rot ◽  
Soil Transmission ◽  
Leaf Spots ◽  
Water Splash ◽  
Twig Blight ◽  
Ornamental Shrubs

Abstract A description is provided for Gibberella baccata. Information is included on the disease caused by the organism, its transmission, geographical distribution, and hosts. HOSTS: On Buxus, Citrus, Juglans, Pinus and many other, usually woody, hosts but it may attack cereals and cause leaf spots and ultimate dieback on some ornamental shrubs. DISEASES: Dieback, bud blight, twig blight or canker, pitch canker of Pinus species (Berry & Hepting, 1969), collar rot of coffee, fusariosis of olive, megare or bud blight of Morus. GEOGRAPHICAL DISTRIBUTION: World wide on woody hosts, infrequently recorded on seeds or from soil. TRANSMISSION: By air-borne spores (chiefly ascospores) or by water splash.

Xanthomonas pisi. [Descriptions of Fungi and Bacteria].

2000 ◽  
Author(s):  
G. S. Saddler
Keyword(s):  
Solanum Tuberosum ◽  
Nicotiana Tabacum ◽  
Pisum Sativum ◽  
Geographical Distribution ◽  
Soft Rot ◽  
Artificial Inoculation ◽  
Stem Rot ◽  
Vigna Angularis ◽  
Dark Green ◽  
Soil Level

Abstract A description is provided for Xanthomonas pisi. Information is included on the disease caused by the organism, its transmission, geographical distribution, and hosts. HOSTS: Pisum sativum (Leguminosae); by artificial inoculation: Brassica oleracea (Brassicaceae), Nicotiana tabacum (Solanaceae), Phaseolus vulgaris, Trifolium spp., Vicia faba and Vigna angularis (Leguminosae). DISEASE: Stem rot of pea. The disease attacks stems or stipules at the soil level, rapidly extending upwards. On stems and stipules lesions appear primarily dark green and water-soaked. Lesions turn brown and papery with age; sometimes a chlorotic halo is evident. Leaflets and petioles are also attacked, frequently the base of leaflets adjoining the petioles become brown, papery and wither. By artificial inoculation isolates are strongly pectolytic, causing soft rot in vegetable tissues such as those from Allium cepa, Daucus carota, Rhaphanus sativus and Solanum tuberosum. GEOGRAPHICAL DISTRIBUTION: ASIA: Japan. TRANSMISSION: Not known.

Meloidogyne coffeicola. [Distribution map].

2010 ◽  
Author(s):  
Keyword(s):  
South America ◽  
Geographical Distribution ◽  
Coffea Arabica ◽  
Minas Gerais ◽  
Sao Paulo ◽  
São Paulo ◽  
Distribution Map ◽  
New Distribution

Abstract A new distribution map is given for Meloidogyne coffeicola Lordello & Zamith (Nematoda). The hosts include arabica, robusta and Liberian coffee (Coffea arabica, C. robusta and C. liberica, respectively). Information is given on the geographical distribution in South America (Brazil, Minas Gerais, Parana and Sao Paulo).

Erwinia rhapontici. [Descriptions of Fungi and Bacteria].

1977 ◽  
Author(s):  
J. F. Bradbury
Keyword(s):  
Geographical Distribution ◽  
Vegetative Propagation ◽  
Crown Rot ◽  
Internal Cavity ◽  
Lateral Buds ◽  
Rheum Rhaponticum ◽  
Erwinia Rhapontici ◽  
Soil Level ◽  
Pink Coloration

Abstract A description is provided for Erwinia rhapontici. Information is included on the disease caused by the organism, its transmission, geographical distribution, and hosts. HOSTS: On Rheum rhaponticum and seed of Triticum sp. DISEASE: Crown rot of rhubarb. Infection usually occurs at soil level or a little below, begninning as a brownish rot that gradually extends into the centre of the root. A cavity may be formed, and the flesh below the crown turns brown, then black. The plant is steadily weakened until finally the crown decays or breaks away, and small spindly leaves grow from lateral buds. Pink grain of wheat. The grain is coloured pink and has an internal cavity below the hilum. Germination of the seed is reduced and plants are retarded by about 3 weeks (Luisetti & Rapilly, 1967). GEOGRAPHICAL DISTRIBUTION: England, Wales and Poland are listed in CMI Map 145. To these should be added USA (Oklahoma) (19, 295) and possibly Norway (7, 700). On wheat, pink grain has been reported from England (55, 699), France (Luisetti & Rapilly, 1967), and possibly Australia where pink coloration of grain has been reported (33, 21). TRANSMISSION: In rhubarb the nematode Anguillulina dipsaci is known to assist the bacterium to enter the crowns (Metcalfe, 1940). It probably also transmits the organism. Wounding is needed for the bacteria to gain entry, and this undoubtedly occurs during the procedures connected with cultivation and vegetative propagation. Infected setts could transmit this disease into new areas.

Xylaria polymorpha. [Descriptions of Fungi and Bacteria].

1972 ◽  
Author(s):  
A. Sivanesan
Keyword(s):  
Geographical Distribution ◽  
Coffea Arabica ◽  
Acer Rubrum ◽  
Deciduous Trees ◽  
Platanus Acerifolia ◽  
Shorea Robusta

Abstract A description is provided for Xylaria polymorpha. Information is included on the disease caused by the organism, its transmission, geographical distribution, and hosts. HOSTS: Mostly gregarious on stems of deciduous trees, including Acer rubrum, Coffea arabica, Platanus acerifolia and Shorea robusta. DISEASE: Causes decay of stumps and fallen timber of hardwoods. At most a weak pathogen which enters through wounds. It has been associated with Acer rubrum (17: 357). Coffea arabica (7: 538), Platanus acerifolia (36: 288) and Shorea robusta (33: 58), as well as other hosts. GEOGRAPHICAL DISTRIBUTION: Widespread. TRANSMISSION: No studies reported.

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