Sarocladium attenuatum. [Descriptions of Fungi and Bacteria].

1980 ◽  
Author(s):  
B. L. K. Brady
Keyword(s):  
Oryza Sativa ◽  
Sri Lanka ◽  
Geographical Distribution ◽  
Similar Role ◽  
Rice Pests ◽  
Rice Disease ◽  
Brown Plant Hopper ◽  
Sheath Rot

Abstract A description is provided for Sarocladium attenuatum. Information is included on the disease caused by the organism, its transmission, geographical distribution, and hosts. HOST: Oryza sativa (rice). DISEASE: Sheath rot. The symptoms are similar to those of sheath rot associated with S. oryzae. GEOGRAPHICAL DISTRIBUTION: India, Sri Lanka, Nigeria, Gambia, Mexico, USA. The distributions of S. attenuatum and S. oryzae overlap and many records of S. attenuatum must have been included in that of 'Acrocylindrium oryzae' before a distinction between the two species had been drawn, but S. attenuatum alone has been recorded for America and S. oryzae only in S.E. Asia. TRANSMISSION: Sarcocladium attenuatum has been isolated from Nilaparvata lugers, the brown plant hopper of rice (CMI records), which might suggest a similar role to that suggested for other rice pests and S. oryzae. Seedborne (56, 5628).

Sarocladium oryzae. [Descriptions of Fungi and Bacteria].

1980 ◽  
Author(s):  
B. L. K. Brady
Keyword(s):  
Oryza Sativa ◽  
Geographical Distribution ◽  
Leaf Sheath ◽  
Fungal Attack ◽  
Rice Disease ◽  
Sheath Rot

Abstract A description is provided for Sarocladium oryzae. Information is included on the disease caused by the organism, its transmission, geographical distribution, and hosts. HOST: Oryza sativa (rice). DISEASE: Sheath rot. This occurs in the upper leaf sheath enclosing young panicles and starts as oblong or irregular lesions with brownish margins and greyish centres, 0.5-1.5 cm long, which later enlarge and coalesce. Whitish mycelium may be seen in the centre of the lesions and occasionally inside the rotted sheaths. Severely affected panicles do not emerge, the effect being known as choking. The symptoms are evidently indistinguishable from those associated with S. attenuatum. GEOGRAPHICAL DISTRIBUTION: India, Bangladesh, Brunei, Kenya, Nigeria. Although it is not always possible when 'Acrocydndrium oryzae' is reported in the earlier literature to know whether S. oryzae or S. attenuatum is intended, the distribution of the former extends into S.E. Asia and the latter into N. America. TRANSMISSION: By conidial dispersal. Fungal attack is often associated with damage by pests - the boring beetle, Corticarina gibbosa (Amin et al.) or the mite Steneotarsonemus madecassus (Hsieh et al., 1977 with 'Acrocylindrium oryzae') and S. spinki (Chien & Huang, 1979).

Rice grassy stunt tenuivirus. [Distribution map].

1997 ◽  
Author(s):  
Keyword(s):  
Oryza Sativa ◽  
Sri Lanka ◽  
Papua New Guinea ◽  
Geographical Distribution ◽  
Tamil Nadu ◽  
Solomon Islands ◽  
New Guinea ◽  
Distribution Map ◽  
Brunei Darussalam ◽  
New Distribution

Abstract A new distribution map is provided for Rice grassy stunt tenuivirus Viruses: Tenuivirus. Hosts: Rice (Oryza sativa). Information is given on the geographical distribution in ASIA, Bangladesh, Brunei, Darussalam, China, India, Kerala, Tamil Nadu, Indonesia, Java, Nusa, Tenggara, Sulawesi, Sumatra, Japan, Kyushu, Korea Republic, Malaysia, Philippines, Sri Lanka, Taiwan, Thailand, Vietnam, OCEANIA, Fiji, Papua New Guinea, Solomon Islands.

Xiphinema ifacolum. [Distribution map].

2010 ◽  
Author(s):  
Keyword(s):  
Oryza Sativa ◽  
Sri Lanka ◽  
South America ◽  
Sierra Leone ◽  
Geographical Distribution ◽  
Cote D'ivoire ◽  
Côte D’Ivoire ◽  
Distribution Map ◽  
Cote D’Ivoire ◽  
New Distribution

Abstract A new distribution map is provided for Xiphinema ifacolum Luc. Nematoda. Hosts: Polyphagous. Major host is rice (Oryza sativa). Information is given on the geographical distribution in Asia (Sri Lanka), Africa (Benin, Cameroon, Cote d'Ivoire, Guinea, Liberia, Sierra Leone, Togo), South America (Brazil, Bahia, Para).

Sarocladium oryzae. [Distribution map].

1990 ◽  
Author(s):  
Keyword(s):  
Saudi Arabia ◽  
Oryza Sativa ◽  
Sri Lanka ◽  
North America ◽  
South America ◽  
Geographical Distribution ◽  
Distribution Map ◽  
New Distribution

Abstract A new distribution map is provided for Sarocladium oryzae (Sawada) W. Gams and D. Hawksw. Hosts: Oryza sativa, Bambusa spp. Information is given on the geographical distribution in AFRICA, Burundi, Gambia, Kenya, Madagascar, Nigeria, ASIA, Bangladesh, Brunei, China, Jiangxi, Guangxi, Sichuan, India, Japan, Malaysia, Philippines, Saudi Arabia, Sri Lanka, Taiwan, Thailand, Vietnam, NORTH AMERICA, USA, LA Mexico, SOUTH AMERICA, Brazil.

Burkholderia glumae. [Distribution map].

1997 ◽  
Author(s):  
Keyword(s):  
Oryza Sativa ◽  
Sri Lanka ◽  
South America ◽  
Geographical Distribution ◽  
Distribution Map ◽  
Burkholderia Glumae ◽  
New Distribution

Abstract A new distribution map is provided for Burkholderia glumae (Kurita & Tabei) Urakami et al. Bacteria Hosts: Rice (Oryza sativa). Information is given on the geographical distribution in ASIA, Japan, Korea Republic, Philippines, Sri Lanka, Taiwan, Vietnam, SOUTH AMERICA, Colombia.

Rice ragged stunt oryzavirus. [Distribution map].

1997 ◽  
Author(s):  
Keyword(s):  
Oryza Sativa ◽  
Sri Lanka ◽  
Geographical Distribution ◽  
Tamil Nadu ◽  
West Bengal ◽  
Peninsular Malaysia ◽  
Distribution Map ◽  
New Distribution

Abstract A new distribution map is provided for Rice ragged stunt oryzavirus Viruses: Reoviridae: Oryzavirus. Hosts: Rice (Oryza sativa). Information is given on the geographical distribution in ASIA, Bangladesh, China, Fujian, Guangdong, Hunan, Jiangxi, Zhejiang, India, Orissa, Tamil Nadu, West Bengal, Indonesia, Java, Nusa, Tenggara, Sulawesi, Sumatra, Japan, Peninsular Malaysia, Malaysia, Philippines, Sri Lanka, Taiwan, Thailand.

Rhizoctonia oryzae-sativae. [Distribution map].

1985 ◽  
Author(s):  
Keyword(s):  
Oryza Sativa ◽  
Sri Lanka ◽  
North America ◽  
Geographical Distribution ◽  
Eichhornia Crassipes ◽  
West Bengal ◽  
Distribution Map ◽  
Rhizoctonia Oryzae ◽  
New Distribution

Abstract A new distribution map is provided for Rhizoctonia oryzae-sativae (Saw.) Mordue. Hosts: Rice (Oryza sativa). Information is given on the geographical distribution in ASIA, China, India (West Bengal; Assam; Mysore; W. Tripura), Japan, Korea, Laos, Malaysia (Kedah; Sabah), Sri Lanka, Taiwan, Thailand, Vietnam, AUSTRALASIA & OCEANIA, Australia (Brisbane, on Eichhornia crassipes), EUROPE, Italy, NORTH AMERICA, USA (California).

Rice yellow dwarf phytoplasma. [Distribution map].

1997 ◽  
Author(s):  
Keyword(s):  
Oryza Sativa ◽  
Sri Lanka ◽  
Geographical Distribution ◽  
Tamil Nadu ◽  
Andhra Pradesh ◽  
Peninsular Malaysia ◽  
Yellow Dwarf ◽  
Distribution Map ◽  
Rice Yellow Dwarf Phytoplasma ◽  
New Distribution

Abstract A new distribution map is provided for Rice yellow dwarf phytoplasma Bacteria: Phytoplasmas. Hosts: Rice (Oryza sativa). Information is given on the geographical distribution in ASIA, Bangladesh, China, Fujian, Guangdong, Guangxi, Hainan, Hubei, Hunan, Yunnan, Zhejiang, India, Andhra Pradesh, Assam, Bihar, Delhi, Karnataka, Kerala, Manipur, Orissa, Tamil Nadu, Indonesia, Java, Kalimantan, Sulawesi, Japan, Honshu, Kyushu, Shikoku, Peninsular Malaysia, Malaysia, Philippines, Sri Lanka, Taiwan, Thailand.

Pyrenochaeta oryzae. [Descriptions of Fungi and Bacteria].

1980 ◽  
Author(s):  
Punithalingam. Punithalingam.
Keyword(s):  
Oryza Sativa ◽  
Sri Lanka ◽  
Sierra Leone ◽  
Geographical Distribution ◽  
Leaf Blade ◽  
Solomon Islands ◽  
Brown Spot ◽  
Infected Leaf ◽  
Nephotettix Virescens ◽  
Wet Weather

Abstract A description is provided for Pyrenochaeta oryzae. Information is included on the disease caused by the organism, its transmission, geographical distribution, and hosts. HOST: Oryza sativa. DISEASE: Sheath blotch of rice or known in Japanese as 'Yosho-kappanbyo' meaning sheath brown spot (Hashioka, 1972). The macroscopic symptoms are large brown lesions on leaf sheaths. At first lesions start from the margin of a sheath as dark brown oblong blotches which enlarge, become bluish-grey, finally covering the entire sheath. Lesions may reach up to 10 cm in length and often appear at the junction of sheath and leaf blade just below the collar without causing the collar to break. When dry the affected part of the sheath turns greyish-brown with or without distinct brown margins. GEOGRAPHICAL DISTRIBUTION: Africa (Sierra Leone, Swaziland); Asia (Burma, China, India, Japan, Malaysia, Philippines, Sri Lanka, Thailand); Australasia & Oceania (Fiji, Solomon Islands). TRANSMISSION: Presumably dispersed in the crop by splash-liberated conidia from infected leaf sheaths and glumes during wet weather. Lesions on leaves also appear at the site of oviposition of the green hopper, Nephotettix bipunctatus[Nephotettix virescens] (Hashioka, 1972).

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

1974 ◽  
Author(s):  
J. E. M. Mordue
Keyword(s):  
Oryza Sativa ◽  
Sri Lanka ◽  
Geographical Distribution ◽  
Crop Residues ◽  
Zizania Latifolia ◽  
Zizania Aquatica ◽  
Rhizoctonia Oryzae

Abstract A description is provided for Rhizoctonia oryzae-sativae. Information is included on the disease caused by the organism, its transmission, geographical distribution, and hosts. HOSTS: On Oryza sativa; has been found on O. cubensis, Juncellus serotinus and Zizania latifolia[Zizania aquatica]. DISEASE: Lesions with pale centres and distinct brown margins develop on sheaths. They are usually small (0.5-1 cm) but several may occur together. Attack on culms results in browning, lodging and death. Can also infect roots. GEOGRAPHICAL DISTRIBUTION: China, Japan; Malaya, Sri Lanka, Taiwan, Vietnam. TRANSMISSION: Soil-borne. Is capable of overwintering in soil as sclerotia or mycelium; also in stubble and other crop residues (11, 801).

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