Scirrhia acicola. [Descriptions of Fungi and Bacteria].

1973 ◽  
Author(s):  
E. Punithalingam
Keyword(s):  
Geographical Distribution ◽  
Pinus Palustris ◽  
Brown Spot ◽  
Republic Of Georgia ◽  
Southern States ◽  
Airborne Conidia ◽  
Effect Of Age ◽  
Needle Blight ◽  
Brown Spot Needle Blight

Abstract A description is provided for Scirrhia acicola[Mycosphaerella dearnessii]. Information is included on the disease caused by the organism, its transmission, geographical distribution, and hosts. HOSTS: On pines, including Pinus palustris, P. tueda, P. halepensis, P. nigra (and varieties), P. pinaster, P. pinea, P. sylvestris, P. thunbergii, P. ponderosa, P. strobus, P. monticola, P. attenuata, P. caribaea, P. elliottii, P. radiata, P. echinata, P. glabra, P. rigida, P. serotina, P. sondereggii, P. virginiana. DISEASE: Brown spot needle blight (11, 813; 41, 185). GEOGRAPHICAL DISTRIBUTION: Canada (46, 1929); USA (Southern States, Idaho, Iowa, Kansas, Minnesota, Oregon, Wisconsin); USSR (Republic of Georgia) (46, 3231). (CMI Map 482, ed. 1, 1971). TRANSMISSION: By splash-dispersed, airborne conidia from infected foliage on the tree or after the needles have been cast. The role of ascospores in spread of brown spot needle blight is not known; endospores (45, 3229) have also been described. The incubation period has been found by various authors to be 28-65 days (46, 2329), 2-3 months for young foliage of P. palustris (40, 636) and 4-7 months for old foliage of P. tueda (46, 3230). Accounts of the effect of age of foliage on susceptibility also vary (40, 636; 46, 3230).

Arthrocladiella mougeotii. [Descriptions of Fungi and Bacteria].

1998 ◽  
Author(s):  
V. P. Heluta
Keyword(s):  
Czech Republic ◽  
Geographical Distribution ◽  
Disease Transmission ◽  
Russian Far East ◽  
Far East ◽  
Republic Of Georgia ◽  
Lycium Barbarum ◽  
Initial Stage ◽  
High Infection

Abstract A description is provided for Arthrocladiella mougeotii. Information is included on the disease caused by the organism, its transmission, geographical distribution, and hosts. DISEASE: Powdery mildew of Lycium species only. The mycelium, conidiophores, conidia and ascomata form first white, then dirty-grey patches on damaged green parts of the host. Infected parts are deformed slightly and, in cases of high infection, plants can lose their ornamental qualities. Damaged leaves can fall prematurely. HOSTS: Lycium barbarum (= L. europaeum), L. chinense, L. dasystemum, L. halimifolium, L. ovatum, L. potaninii, L. rhombifolium, L. ruthenicum. [Type host - Lycium barbarum] GEOGRAPHICAL DISTRIBUTION: Africa: Canary Islands. Asia (temperate areas only): Armenia, Azerbaijan, China, Republic of Georgia, Israel, Japan, Kazakhstan, Kirghizistan, Korea, Russia (Russian far east), Tadzhikistan, Taiwan, Turkey, Turkmenistan, Uzbekistan. Australasia: New Zealand (introduced). Europe: Austria, Belgium, Bulgaria, Czech Republic, Estonia, France, Germany, Hungary, Italy, Netherlands, Norway, Poland, Rumania, Slovakia, Sweden, Switzerland, UK, Ukraine (southern), former Yugoslavia. North America: USA (introduced). TRANSMISSION: By wind-dispersed conidia. The rôle of ascospores in disease transmission is unknown, although it has been supposed that they can cause the initial stage of the disease.

Scirrhia pini. [Descriptions of Fungi and Bacteria].

1973 ◽  
Author(s):  
E. Punithalingam
Keyword(s):  
New Zealand ◽  
Geographical Distribution ◽  
Pseudotsuga Menziesii ◽  
Forest Floor ◽  
Republic Of Georgia ◽  
Long Distance Dispersal ◽  
Long Distance ◽  
Nursery Stock ◽  
Airborne Conidia ◽  
Infected Material

Abstract A description is provided for Scirrhia pini[Mycosphaerella pini]. Information is included on the disease caused by the organism, its transmission, geographical distribution, and hosts. HOSTS: On pines including Pinus radiata and its hybrids, P. halepensis, P. canariensis, P. carbaea, P. ponderosa, P. nigra and others, Pseudotsuga menziesii (46, 2860), Larix decidua (49, 273). DISEASE: Dothistroma blight; red band. GEOGRAPHICAL DISTRIBUTION: North America (Canada, USA including Alaska), South America (Argentina, Brazil, Chile, Uruguay), Australasia and Oceania (New Zealand), Asia (Brunei, India, Japan), Africa (Ethiopia, Kenya, Malawi, Rhodesia, Swaziland, Tanzania, Uganda), Europe (Austria, France, Rumania, UK, USSR (Republic of Georgia), Yugoslavia) (CMI Map 419, ed. 2, 1970; record in CMI Herbarium). TRANSMISSION: By airborne conidia released and dispersed by a splash take-off mechanism for short distances. Long distance dispersal may be by transport of infected material, such as nursery stock and, under special conditions, clouds may carry sporal inoculum (43, 2100). Survival time of inoculum in the form of cast, infected foliage on the forest floor is limited to 2-6 months under moist conditions (50, 2003).

Cercospora cichorii. [Descriptions of Fungi and Bacteria].

2000 ◽  
Author(s):  
J. C. David
Keyword(s):  
South Africa ◽  
New York ◽  
North America ◽  
South America ◽  
South Dakota ◽  
Geographical Distribution ◽  
Wind Dispersal ◽  
Republic Of Georgia ◽  
Cichorium Endivia ◽  
Airborne Conidia

Abstract A description is provided for Cercospora cichorii. Information is included on the disease caused by the organism, its transmission, geographical distribution, and hosts. DISEASE: Leaf spot of chicory. HOSTS: Cichorium endivia, C. intybus (Compositae). GEOGRAPHICAL DISTRIBUTION: AFRICA: Madagascar, South Africa (DOIDGE, 1950), Sudan, Zambia. NORTH AMERICA: Bermuda, USA (Michigan, New York, South Dakota, Texas, Wisconsin). SOUTH AMERICA: Argentina. ASIA: Azerbaijan, Republic of Georgia, India, Pakistan, Turkmenistan, Uzbekistan. EUROPE: Greece (52: 2856), Romania (66: 4701), Russia, Ukraine. TRANSMISSION: By wind dispersal of airborne conidia.

Invasive brown spot needle blight caused byLecanosticta acicolain Estonia

2015 ◽  
Vol 30 (7) ◽  
pp. 587-593 ◽  
Author(s):  
Kalev Adamson ◽  
Rein Drenkhan ◽  
Märt Hanso
Keyword(s):  
Brown Spot ◽  
Needle Blight ◽  
Brown Spot Needle Blight

scholarly journals Spread of the invasive pathogen Lecanosticta acicola on species of Pinus in Bulgaria

2020 ◽  
Vol 21 (1) ◽  
pp. 83-90
Author(s):  
Margarita Georgieva
Keyword(s):  
Fungal Pathogen ◽  
Brown Spot ◽  
Emerging Pathogen ◽  
Invasive Pathogen ◽  
New Hosts ◽  
Lecanosticta Acicola ◽  
Eastern Rhodopes ◽  
First Time ◽  
Needle Blight ◽  
Brown Spot Needle Blight

The brown spot needle blight, caused by the fungal pathogen Lecanosticta acicola, has been the most serious and damaging disease on needles of Pinus spp. in recent years. In Bulgaria, the pathogen was reported for the first time in 2017 in a generative plantation of Pinus sylvestris in the region of the State Forestry Ardino, the Eastern Rhodopes. The newly- established invasive pathogen is considered highly adaptable to new hosts and environmental conditions. The life cycle and symptoms of the disease strongly suggest that the new emerging pathogen has the potential to cause severe damages and is a serious threat to naturally distributed species of Pinus in the country. In the period 2018-2019, a spread of L. acicola from the initial outbreak was established throughout stands of P. sylvestris and P. nigra on the territory of Kardzhali District.

scholarly journals Records of Brown spot needle blight related to Lecanosticta acicola in the Czech Republic

2009 ◽  
Vol 45 (No. 1) ◽  
pp. 16-18 ◽  
Author(s):  
L. Jankovský ◽  
D. Palovčíková ◽  
M. Dvořák ◽  
M. Tomšovský
Keyword(s):  
Nature Conservation ◽  
Czech Republic ◽  
Pinus Sylvestris ◽  
Nature Reserve ◽  
Brown Spot ◽  
The Czech Republic ◽  
Lecanosticta Acicola ◽  
Needle Blight ◽  
South Bohemia ◽  
Brown Spot Needle Blight

There are two records of brown spot needle blight caused by <I>L. acicola</I> in the Czech Republic up to date. Disease was first reported on June 2007 in National Nature Reserve (NNR) Červená Blata, South Bohemia. A more recent discovery of <I>L. acicola</I> took place on August 2008 in the NNR Borkovická Blata. The disease was observed on 10-60 year old <I>Pinus rotundata</I>. Both locations with infected trees are situated inside nature conservation sites under strict protection regimes that are located approximately 50 km apart. In both sites, <I>L. acicola</I> occurred simultaneously with <I>Dothistroma septospora</I>, the red band needle blight causal agent on Scots pine (<I>Pinus sylvestris</I>), bog pine (<I>P. rotundata</I>) and their hybrid (<I>P. × digenea</I>). However, infections of both diseases on the same tree have not yet been observed.

Erysiphe convolvuli. [Descriptions of Fungi and Bacteria].

1998 ◽  
Author(s):  
V. P. Heluta
Keyword(s):  
Geographical Distribution ◽  
Disease Transmission ◽  
Ipomoea Batatas ◽  
European Part ◽  
Republic Of Georgia ◽  
North Caucasus ◽  
Convolvulus Arvensis ◽  
Initial Stage ◽  
Almost All

Abstract A description is provided for Erysiphe convolvuli. Information is included on the disease caused by the organism, its transmission, geographical distribution, and hosts. DISEASE: Powdery mildew of members of the Convolvulaceae only. Mycelium, conidiophores, conidia and ascomata form first white, then dirty-grey layers on damaged leaves. Erysiphe convolvuli can be used as an agent of biocontrol against any Convolvulus species which are malicious weeds. HOSTS: Calystegia hederacea, C. sepium, C. silvatica, C. soldanella, Convolvulus althaeoides, C. ammanii, C. arvensis, C. askabadensis (incl. C. pseudocantabrica), C. divaricatus, C. fruticosus, C. galaticus, C. hamadae, C. hirsutus, C. lineatus, C. pilosellaefolius, C. sagittaefolius, C. scammonia, C. siculus, C. subhirsutus, C. tricolor, Ipomoea batatas (?), I. cymosa (?). [Type host - Convolvulus arvensis] GEOGRAPHICAL DISTRIBUTION: Africa: Canary Islands, Egypt, Libya, Morocco. Asia (temperate areas only): Afghanistan, Armenia, Azerbaijan, China, Cyprus, Republic of Georgia, India, Iran, Iraq, Israel, Jordan, Kazakhstan, Kirghizistan, Korea, Lebanon, Mongolia, Pakistan, Russia (north Caucasus, south and southwest Siberia), Saudi Arabia, Turkey, Turkmenistan, Uzbekistan. Europe (almost all): Austria, Bulgaria, Belarus, Czech Republic, Estonia, Finland, France, Germany, Greece, Hungary, Italy, Latvia, Lithuania, Moldova, Poland, Portugal, Rumania, Russia (European part), Slovakia, Spain, Sweden, Switzerland, Turkey (European part), UK, Ukraine, former Yugoslavia. North America (introduced). South America: Argentina, Brazil (introduced). TRANSMISSION: By wind-dispersed conidia. The rôle of ascospores in disease transmission is unknown, although it has been supposed that they can cause the initial stage of the disease.

Cladosporium chlorocephalum. [Descriptions of Fungi and Bacteria].

2000 ◽  
Author(s):  
J. C. David
Keyword(s):  
New York ◽  
Czech Republic ◽  
New Zealand ◽  
North America ◽  
West Virginia ◽  
South America ◽  
Geographical Distribution ◽  
Wind Dispersal ◽  
Republic Of Georgia ◽  
Airborne Conidia

Abstract A description is provided for Cladosporium chlorocephalum. Information is included on the disease caused by the organism, its transmission, geographical distribution, and hosts. DISEASE: Red spot of peony, occurring on leaves, petioles and stems of host. HOSTS: Paeonia arborea, P. officinalis, P. suffruticosa (Paeoniaceae). GEOGRAPHICAL DISTRIBUTION: NORTH AMERICA: Canada (Quebec, 3: 138), USA (Alaska, Alabama, Connecticut, District of Colombia, Delaware, Illinois (8: 293), Iowa, Kansas, Massachusetts, Minnesota, Missouri, Mississippi, New York, Ohio, Pennsylvania, Wisconsin, West Virginia). SOUTH AMERICA: Argentina (18: 478). ASIA: Armenia, China, Republic of Georgia, Kazakhstan. AUSTRALASIA: New Zealand. EUROPE: Bulgaria (38: 147), Czech Republic, Denmark, France (28: 510), Italy, Germany, Latvia, Moldavia, Poland, Romania (16: 20), Russia, Switzerland, UK, Ukraine. TRANSMISSION: By wind dispersal of airborne conidia and on dead remains of old plants.

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