Mycosphaerella parkii. [Descriptions of Fungi and Bacteria].

1995 ◽  
Author(s):  
P. W. Crous
Keyword(s):  
Geographical Distribution ◽  
Leaf Spot ◽  
Eucalyptus Grandis ◽  
Leaf Spot Disease ◽  
Spot Disease

Abstract A description is provided for Mycosphaerella parkii. Information is included on the disease caused by the organism, its transmission, geographical distribution, and hosts. HOSTS: Eucalyptus grandis, E. saligna, E. globulus. DISEASE: Associated with a serious leaf spot disease of Eucalyptus in Brazil (72, 5535). GEOGRAPHICAL DISTRIBUTION: Brazil, Indonesia. TRANSMISSION: Spores are wind-borne.

Mycosphaerella populorum. [Descriptions of Fungi and Bacteria].

1990 ◽  
Author(s):  
A. Sivanesan
Keyword(s):  
North America ◽  
South America ◽  
Geographical Distribution ◽  
Leaf Spot ◽  
Leaf Spot Disease ◽  
Distribution Map ◽  
Spot Disease ◽  
Mycosphaerella Populorum

Abstract A description is provided for Mycosphaerella populorum. Information is included on the disease caused by the organism, its transmission, geographical distribution, and hosts. HOSTS: Populus spp. DISEASE: Septoria canker, leaf spot disease. GEOGRAPHICAL DISTRIBUTION: North America: USA (east and central states). South America: Argentina (CMI Distribution Map 540, 1981). TRANSMISSION: By windborne conidia and ascospores.

Lophomerum ponticum. [Descriptions of Fungi and Bacteria].

1984 ◽  
Author(s):  
D. W. Minter
Keyword(s):  
Great Britain ◽  
Geographical Distribution ◽  
Leaf Spot ◽  
Causal Agent ◽  
Leaf Spot Disease ◽  
Spot Disease ◽  
Green Leaves ◽  
Rhododendron Ponticum

Abstract A description is provided for Lophomerum ponticum. Information is included on the disease caused by the organism, its transmission, geographical distribution, and hosts. HOSTS: Rhododendron ponticum. DISEASE: Leaf spot of rhododendron. In general Lophomerum ponticum appears to be saprophytic. Its ascocarps are usually not produced until the leaves have senesced, become detached and fallen to the litter. Occasionally, however, ascocarps can be found on browned regions of otherwise green leaves, and it seems possible, therefore, that the species is facultatively parasitic. It is important to distinguish this species from Lophodermium vagulum (CMI Descriptions 789) which is the causal agent of a leaf spot disease of chinese rhododendrons, but which does not occur on R. ponticum. GEOGRAPHICAL DISTRIBUTION: Europe (Great Britain), probably much more widespread. TRANSMISSION: By air-borne ascospores in wet or humid weather.

Xanthomonas campestris pv. sesami. [Descriptions of Fungi and Bacteria].

1981 ◽  
Author(s):  
J. F. Bradbury
Keyword(s):  
Geographical Distribution ◽  
Leaf Spot ◽  
Bacterial Blight ◽  
Xanthomonas Campestris ◽  
Seed Transmission ◽  
Sesamum Indicum ◽  
Leaf Spot Disease ◽  
Spot Disease ◽  
Water Splash ◽  
Olive Green

Abstract A description is provided for Xanthomonas campestris pv. sesami. Information is included on the disease caused by the organism, its transmission, geographical distribution, and hosts. HOSTS: On Sesamum indicum (Pedaliaceae). DISEASE: Bacterial blight of sesame or simsim; known as 'Marad ed Dum' in the Sudan. Mainly a leaf spot disease, this starts as tiny dark olive green spots, which increase in size, becoming dark red-brown to black, and about 2-3 mm. They may be rounded or angular, and may coalesce to involve larger areas of leaf. Stems and capsules may also be infected, having oval, slightly raised, dark red-brown lesions. GEOGRAPHICAL DISTRIBUTION: Sudan and India (CMI Map 494, ed 2, 1973) to which must be added Venezuela, now confirmed (54, 524; 56, 2615). TRANSMISSION: Within a crop by water splash, wind-driven rain etc. ; from one area to another by seed transmission (47, 593). Survival in seed is up to 16 months (51, 400), in soil up to 6 months.

scholarly journals Description and pathogenicity of Cylindrocladium ovatum sp.nov.

1993 ◽  
Vol 71 (3) ◽  
pp. 466-470 ◽  
Author(s):  
N. E. El-Gholl ◽  
A. C. Alfenas ◽  
P. W. Crous ◽  
T. S. Schubert
Keyword(s):  
Key Words ◽  
Leaf Spot ◽  
Eucalyptus Grandis ◽  
Leaf Spot Disease ◽  
Eucalyptus Urophylla ◽  
Spot Disease

Cylindrocladium ovatum El-Gholl, Alfenas, Crous, et Schubert sp.nov., the cause of a leaf spot disease on Eucalyptus urophylla in Para, Brazil, is described and is shown to be a pathogen on Eucalyptus grandis, Eucalyptus robusta, Eucalyptus terelicornis, and Eucalyptus torelliana. Key words: Cylindrocladium ovatum, Eucalyptus urophylla, leaf spot disease.

Mycosphaerella molleriana. [Descriptions of Fungi and Bacteria].

1995 ◽  
Author(s):  
P. W. Crous
Keyword(s):  
New Zealand ◽  
Geographical Distribution ◽  
Leaf Spot ◽  
Leaf Spot Disease ◽  
Spot Disease

Abstract A description is provided for Mycosphaerella molleriana. Information is included on the disease caused by the organism, its transmission, geographical distribution, and hosts. HOSTS: Eucalyptus bicostata, E. bridgesiana, E. botryoides, E. cladocalyx, E. cypellocarpa, E. dalrympleana, E. gigantea, E. globulus, E. grandis, E. gunnii, E. macarthurii, E. maidenii, E. melliodora, E. nitens, E. nova-anglica, E. polybracteata, E. quadrangulata, E. saligna, E. smithii, E. stjohnii, E. stuartiana, E. tereticornis, E. viminalis. DISEASE: Leaf spot disease on juvenile and intermediate foliage of Eucalyptus. GEOGRAPHICAL DISTRIBUTION: Africa, Australia, New Zealand, Portugal and Spain. Unconfirmed records include California USA, and Brazil (Carnegie & Keane, 1994). TRANSMISSION: Spores are wind-borne.

TWO NEW SEVERE LEAF SPOT DISEASE ON FOREST TREES OF JALGAON (MAHARASTRA) INDIA

2017 ◽  
Vol 23 (2) ◽  
Author(s):  
S. A. FIRDOUSI
Keyword(s):  
Leaf Spot ◽  
Fungal Disease ◽  
Leaf Spot Disease ◽  
Forest Trees ◽  
First Report ◽  
Spot Disease ◽  
Severe Leaf

During the survey of the forest fungal disease, of Jalgaon district, two severe leaf spot diseases on Lannae coromandelica and ( Ougenia dalbergioides (Papilionaceae) were observed in Jalgaon, forest during July to September 2016-17. The casual organism was identified as Stigmina lanneae and Phomopsis sp. respectively1-4,7. These are first report from Jalgaon and Maharashtra state.

Rapid Inoculation Technique and Biological Control of Leaf Spot Disease in Oil Palm

2019 ◽  
Vol 2 (1) ◽  
pp. 1-11 ◽  
Author(s):  
Delia Agustina ◽  
◽  
Cahya Prihatna ◽  
Antonius Suwanto ◽  
◽  
...  
Keyword(s):  
Biological Control ◽  
Oil Palm ◽  
Leaf Spot ◽  
Leaf Spot Disease ◽  
Inoculation Technique ◽  
Spot Disease

scholarly journals Registration of three peanut allotetraploid interspecific hybrids resistant to late leaf spot disease and tomato spotted wilt

2021 ◽  
Author(s):  
Ye Chu ◽  
H. Thomas Stalker ◽  
Kathleen Marasigan ◽  
Chandler M. Levinson ◽  
Dongying Gao ◽  
...  
Keyword(s):  
Leaf Spot ◽  
Interspecific Hybrids ◽  
Leaf Spot Disease ◽  
Late Leaf Spot ◽  
Spot Disease ◽  
Tomato Spotted Wilt
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