Guignaridia bidwellii. [Descriptions of Fungi and Bacteria].

Author(s):  
A. Sivanesan

Abstract A description is provided for Guignaridia bidwellii. Information is included on the disease caused by the organism, its transmission, geographical distribution, and hosts. HOSTS: On leaves, fruits and stems of Ampelopsis, Cissus, grapevine (Vitis vinifera), Vitis spp., Parthenocissus quinquefolia (Virginia creeper), P. tricuspidata (Boston ivy). DISEASE: Black rot of grapevine. GEOGRAPHICAL DISTRIBUTION: Widespread with main host (CMI Map 81, ed. 3, 1976); absent from Australasia, Scandanavia, UK, W. USA. TRANSMISSION: Conidia are water-borne (58, 1876) and ascospores air-borne after rain (57, 4574).

Author(s):  
E. Punithalingam

Abstract A description is provided for Guignardia aesculi. Information is included on the disease caused by the organism, its transmission, geographical distribution, and hosts. HOSTS: Aesculus glabra, A. hippocastanum (main host) (Hippocastanaceae). Several other species of Aesculus and subspecies including A. ambigua, A. arnoldiana, A. bushii, A. carnea, A. discolor, A. dupontii, A. hybrida, A. mississippiensis, A. mutabilis, A. neglecta, A. octandra, A. pavia, A. splendens, A. turbinata and A. woerlitzensis have been reported to be susceptible (Neely & Himelick, 1963; 50, 2509). DISEASE: Leaf blotch or black rot of Aesculus hippocastanum (horse chestnut) and other Aesculus species (5, 706; 28, 38; 64, 4521). GEOGRAPHICAL DISTRIBUTION: Europe (Austria, Belgium, France, Germany, Italy, Netherlands, Portugal, Romania, Switzerland, U.K., Yugoslavia); North America (Canada: Manitoba, New Brunswick, Nova Scotia, Ontario, Quebec; U.S.A. : Eastern U.S.A). TRANSMISSION: Presumably by water-borne conidia during wet conditions. Ascomata are produced on leaves left to over winter outside and both conidia and ascospores discharged from over wintered leaves have been reported to infect leaves of seedlings and produce blotch symptoms (Hudson, 1987).


Author(s):  

Abstract A new distribution map is provided for Sphaeraspis vitis (Philippi) Hemiptera: Coccoidea: Margarodidae Feeds on roots of many plants; seriously damages grapevine (Vitis vinifera), sometimes resulting in plant death. Information is given on the geographical distribution in SOUTH AMERICA, Argentina, Brazil, Maranhao, Rio Grande do Sul, Santa Catarina, Chile, Paraguay, Uruguay, Venezuela.


Author(s):  
V. P. Hayova

Abstract A description is provided for Amerosporium concinnum, which is found on dead remains of various plants, but it has also been isolated from grassland soil in Spain. Some information on its dispersal and transmission and conservation status is given, along with details of its geographical distribution (Mexico, USA (Texas), China (Shaanxi), Iran, Turkey, Georgia, Greece, Portugal, Spain, and Ukraine) and hosts (Ceratocladium purpureogriseum, Phomopsis brunaudiana, Torula herbarum f. quaternella, Acer oliverianum, Alhagi pseudalhagi, Arundo phragmitis, Bambusa sp., Cichorium intybus, Citrus sp., Echinops sp., Ephedra distachya, Foeniculum vulgare, Stenotaphrum secundatum, Vitis vinifera, and Ziziphora serpyllaceae).


Author(s):  
P. M. Kirk

Abstract A description is provided for Mortierella polycephala. Information is included on the disease caused by the organism, its transmission, geographical distribution, and hosts. HOSTS: From soil. DISEASE: None as a primary pathogen of plants; encountered as a saprobe. GEOGRAPHICAL DISTRIBUTION: Belgium, China, France, Gibraltar, India, Japan, Netherlands, New Zealand, UK, Ukraine, former USSR. TRANSMISSION: Movement of soil, or water-borne dispersal of sporangiospores.


Author(s):  

Abstract A new distribution map is provided for Monelliopsis pecanis Bissell. Hemiptera: Aphididae. Main host: Pecan (Carya illinoinensis). Information is given on the geographical distribution in Europe (Italy, Sicily, Portugal, Madeira), Africa (Egypt and South Africa) and North America (Mexico, USA, Alabama, Arizona, California, Florida, Georgia, New Mexico, Oklahoma, South Carolina and Texas).


Author(s):  
E. Punithalingam

Abstract A description is provided for Diaporthe citri. Information is included on the disease caused by the organism, its transmission, geographical distribution, and hosts. HOSTS: On Citrus aurantifolia, C. aurantium, C. grandis, C. limon, C. parasisi, C. reticulata and C. sinensis. DISEASE: Melanose of Citrus spp. and stem end rot of the fruit. Symptoms occur on the immature leaves, young branches, stalks and fruit. The very small spots enlarge, become water-soaked, sunken, dark with chlorotic halos and develop raised, corky, superficial, necrotic areas up to 1 mm diam. ; this spotting is frequently very abundant and scar-like, necrotic aggregations are formed; on the fruit the spots are sometimes arranged in rings, lines or curves. Leaves are distorted and may fall prematurely. The small, dying branches bear the same raised spots in which both spore stages are found. Diaporthe citri is one of the citrus pathogens which penetrates the fruit at the stem end and causes a rot in storage (7, 713; 23, 386; 50, 679). GEOGRAPHICAL DISTRIBUTION: Widespread in citrus growing areas (CMI Map 126, ed. 2, 1966). TRANSMISSION: Water-borne through the conidia.


Author(s):  
T. V. Andrianova

Abstract A description is provided for Asperisporium vitiphyllum, a colonizer of living leaves, causing a leaf spot or brown leaf blotch and leaf drying. Some information on its habitat, dispersal and transmission, and conservation status is given, along with details of its geographical distribution (Africa (Morocco and South Africa), Asia (Armenia, China, Georgia, Iran, Iraq, Israel, Kazakhstan (Almaty oblast), Kyrgyzstan, Pakistan, Tajikistan, Turkmenistan and Uzbekistan), Europe (Moldova, Russia (Krasnodar krai, Leningradskaya oblast, Stavropol krai) and Ukraine)) and hosts (including Vitis vinifera).


Author(s):  

Abstract A new distribution map is provided for Naupactus xanthographus (Germar), Coleoptera: Curculionidae. Hosts: polyphagous, especially grape (Vitis vinifera), but also avocado (Persea americana), kiwi (Actinidia sp.) and fruit species of Malus, Pyrus, Prunus and Citrus. Information is given on the geographical distribution in South America (Argentina, Brazil, Rio Grande do Sul, Santa Catarina, Chile, Easter Island, Paraguay and Uruguay).


Author(s):  

Abstract A new distribution map is provided for Xylotrechus chinensis (Chevrolat). Coleoptera: Cerambycidae. Hosts: mulberry (Morus spp.), has also been found on apple (Malus spp.), pear (Pyrus spp.) and grapevine (Vitis vinifera). Information is given on the geographical distribution in Asia (China, Anhui, Beijing, Fujian, Gansu, Guangdong, Hebei, Henan, Jiangsu, Jiangxi, Liaoning, Shaanxi, Shandong, Shanghai, Shanxi, Tibet, Yunan, Zheijiang, Hong Kong, Japan, Honshu, Shihoku, Hokkaido, Kyushu, Ryukyu Islands, North Korea, South Korea, Taiwan), Europe (France, Greece, Crete, Spain).


Author(s):  

Abstract A new distribution map is provided for Peach rosette mosaic virus Viruses: Family Comoviridae: Genus Nepovirus Hosts: Peach (Prunus persica) and grapevine (Vitis vinifera). Information is given on the geographical distribution in ASIA, Turkey, AFRICA, Egypt, NORTH AMERICA, Canada, Ontario, USA, Michigan, New York.


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