DOCSLIB.ORG

Download Download

Total Page：16

File Type：pdf, Size：1020Kb

Download full-text PDF Read full-text
Download Download 201 HOST INDEX The numbers opposite the fungus name refer to species numbers in the body of the paper. Abutilon Theophrasti Macrosporium Abutilonis 340 Aealypha virginica Cercospora Acalyphae 292 Acer rubrum Uncinula circinata 50 Rhytisma acerinum 31 Acer saccharum Phyllosticia minima 208 Uncinula circinata 50 Acer saccharinum Uncinula circinata 50 Acorus calamus Ramularia aromatica 349 Actinomeris alternifolia Erysiphe cichoracearum 34 Aesculus glabra Uncinula flexuosa 52 Phyllosticta Patriae 210 Guignardia Aesculi 72 Agastache nepetoides Puccinia verrucosa 163 Agrimonia gryposepala Pucciniastrum Agrimoniae 112 Septoria Agrimoniae 219 Sphaerotheca humuli 46 Agrostemma Githago Marssonia Delastrei 284 Agrostis alba Puccinia graminis 132 Allium Cepa Macrosporium Porri 343 Vermicularia circinans 265 Cleistothecopsis circinans 57 Althaea rosea Cercospora althaeina 293 Puccinia malvacearum 139 Amaranthus retroflexus Albugo Bliti 2 Amaranthus spinosus Albugo Bliti 2 202 Ambrosia artemisaefolia Albugo Tragopogonis 6 Erysiphe cichoracearum 34 Plasmopara Halstedii . 17 Ambrosia trifida Erysiphe cichoracearum 34 Physalospora Ambrosiae 79 Plasmopara Halstedii 17 Amphiearpa monoica Erysiphe Polygoni 37 Synchylrium decipiens 1 Anemone virgiana Puccinia Anemones-virginanae 114 Anemone sp. Erysiphe Polygoni 37 Anemonella thalictroides Puccinia tomipara 160 Antirrhinum majus Puccinia Antirrhinii 116 Apium graveolus Cercospora Apii 29 Aquilegia canadensis Erysiphe Polygoni 37 Arabis hirsuta Peronospora parasilica 13 Arabis laevigata Peronospora parasitica 13 Arctium Lappa Ascochyta Lappae 180 Puccinia Bardanae 119 Septoria Lapparum 237 Arisaema Dracontium Uromyccs Caladii 167 Arisaema triphyllum Urnmyces Caladii 167 Asclepias incarnata Cercospora clavata 304 Septoria asclepidiacola 220 IJromyces Howei 172 Asclepias purpurascens Uromyces Howei 172 Asclepias syrlaca Cercospora clavata 304 Uromyces Howei 172 Asimina triloba Phyllosticta Asiminae 191 Asparagus officinalis Puccinia Asparagi 117 203 Aster azureus Coleosporium Solidaginis 101 Erysiphe cichoracearuin 34 Aster cordifolius Coleosporium Solidaginis 101 Puccinia Asteris 118 Puccinia exlensicola 131 Aster ericoides var. villosus Coleosporium. Solidaginis 101 Erysiphe cichoracearum 34 Aster Novae-angilae Coleosporium Solidaginis 101 Erysiphe cichoracearum 34 Aster paniculatus Coleosporium Solidaginis 101 Erysiphe cichoracearum 34 Puccinia Asteris '. 118 Puccinia exlensicola 131 Aster sagittifolius Coloesporium Solidaginis 101 Puccinia exlensicola 131 Aster Shortii Coleosporium Solidiganis 101 Puccinia exlensicola 131 Aster sp. Puccinia Asteris 118 Erysiphe cichoracearum 34 Avena sativa 'l% Puccinia coronata 124 Puccinia, graminis 132 Ustilago Avenae 88 UsHlago levis 89 Benzoin aestivale Sphaeropsis hinderae 260 Beta vulgaris ' Pl Cercospora beticola 299 Bidens frondosa Cercospora urnbraia 328 Plasmopara Halstedii 17 Sphaerotheca hurnuli var. fuliginea 47 Bidens laevis Plasmopara Halstedii 17 Sphaerotheca humuli var fuliginea 47 BlephUia hirsuta Puccinia Menthae 142 Boehmeria eylindrica Aecidium Boehmeriae 94 204 Brassiea nigra Albugo Candida 3 Erysiphe Polygoni 37 Brassiea oleracea Alternaria Brassicae 288 Bromus ciliatus Phyllachora graminia 63 Puccinia tomipara 160 Cacalia atriplicifolia Seploria Cacaliae 223 Cacalia reniformis Septoria Cacaliae 223 Callistephus hortensis Coleosporium Solidaginis 101 Campanula amerieana Coleosporium Campanulae 98 Cannabis sativa Septoria Cannabis 224 Capsella Bursa-pastoris Albugo Candida 3 Peronospora parastica 13 Capsicum annuum Colletoirichum nigrum 269 Glomerella piperala 67 Cardamine bulbosa Albugo Candida 3 Carex Frankii Puccinia Bolleyana 120 Carex pennsylvanica Schizonella melanogramma 83 Carex pubescens Puccinia Pringsheimiana 150 Carex trichocarpa Puccinia Bolleyana 120 Carex sp. Claslerosporium caricinum 336 Carpinus caroliniana Microsphaera Alni 38 Phyllaclinia Corylea 44 Carya ovata Gnomonia Caryae 68 Phyhosticta Caryae, 193 Calalpa bignonoides Phyllaclinia Corylea 44 Catalpa speciosa Macrosporium Catalpae 341 Microsphaera Alni var. Vaccinii 39 Phyllosticla Catalpae 194 205 Caulophyllum thalictroides Cercospora CaulophyUi 301 Celastrus scandens PhyUadinia Corylea 44 Ramularia Celastri 352 Celtis occidentalis Phyllosticta Celiidis 195 Sphaerolheca phytoptophyla 49 Cerastium viscosum Septoria Cerastii 225 Cercis canadensis Cercospora chionea 302 Phyllosticta cercidicola 196 Chenopodium album Peronospora ejfiisa 11 Phyllosticta Chenopodii 197 Stagnospora Chenopodii 261 Circaea lutitiana Puccinia Circaeae 121 Cirsium altissimum Erysiphe dehoracearum 34 Septoria Cirsii 226 Cirsium laneeolatum Puccinia Cnici 122 Citrullus vulgaris Cercospora citrullina 303 Colletotrichum lagenarium 267 Claytonia virginiea Puccinia Mariae-Wilsoni 140 Clematis virginiana Erysiphe Polygoni 37 Puccinia tomipara 160 Comandra umbellata Puccinia pustulata 153 Convolvulus sepium Puccinia Convolvuli 123 Cornus florida Phyllactinia Corylea 44 Septoria corni ola 229 Corydalis aurea Pernospora Corydalis 10 Corylus americana Phyllacitinia Corylea • 44 Phyllosticta Coryli 199 C ataegus coccinea Gymnosporangium globosum 104 Crataegus Crus-galli Gymnosporangium globosum 104 20G Crataegus punctata Gymnosporangium glohosum 104 Crataegus sp. Gijmnosporangium glohosum 104 Cryptotaenia canadensis Septoria Cryptotaeniae 230 Cucumis Melo Collctotrichum Lagenarium 267 Cucumis sativus Colletotrichum Lagenarium 267 Pseudoperonospora cubensis 21 Cydonia vulgaris Podosphaera oxacanlhae 45 Fabraea macxdala 24 Cyperus strigosus Puccinia Cyperi 125 Cyperus Schweinitzii Puccinia Cyperi 125 Datura Stramonium Alternaria crassa 289 Daucus carota Cercospora apii var. carotae 296 Dentaria laeiniata Peronospora parasitica 13 Septoria Dentariae •. 231 Dentaria diphylla Albugo Candida 3 Desmodium eanescens Uromyces Hedysari-paniculati 171 Desmodium Dillenii Uromyces Hedysari-paniculati 171 Desmodium laevigatum Uromyces Hedusari-paniculati 171 Desmodium paniculatum Uromyces Hedysari-paniculati Desmodium rotundi olium Phyllosticia Dcsmodii 202 Dianthera americana Cercospora Diantherae 308 Dianthus caryophyllus Uromyces caryophyllinus 168 Dicentra CucuUaria Aecidium Dicentrae 95 Peronospora Corydalis 10 Digitaria sanguinalis Piricularia grisea 346 Uslilago Rabenhorsliana 91 207 Diospyros virginiana Podosphaera oxacanthae 45 Dioscorea villosa Didymaria fiilva 337 Dipsacus sylvestris Cercospora elongata 310 Direa palustris Aecidium hydnoidium 96 Echynoeystis obata Cercospora Echinocystis 309 Septoria Sicyi 253 Eleocharis palustris Puccinia Eleocharidi 129 Elymus canadensis Phyllachora gramin s 63 Elymus striatus Claviceps purpurea 58 Phyllachora graminis 63 Puccinia Impatientis 135 Elymus virginieus ClavicQps purpurea 58 Phyllachora graminis 63 Elymus sp. Phyllachora graminis 63 Erigeron annuus Basidiophora entospora 7 Cercospora cana 300 Puccinia extensicola 131 Septoria Erigerontis 232 Erigeron philadelphicus Septoria Erigerontis 232 Erigeron sp. Sphaeroth ca huimdi va -. fuliginea 47 Erysiphaceae Cincinnoholus cesatii 183 Eupatorium perfoliatum Cerospora Eupatori 311 Erysiphe cichoracear uni 34 Eupatorium purpureum Cercospora Eapatorii 311 Erysiphe cichoracearum 34 Euphorbia eommutata Aecidium Tithymali 97 Euphorbia dentata Uromyces proeminens . ., 175 Euphorbia humistrata Uromyces proeminens 175 208 Euphorbia maculata Uromyces proeminens 175 Euphorbia marginata Microsphaera Eiiphorbiae 41 Euphorbia preslii Uromyces proeminens 175 Evonymus at opurpureus Marssonia Thomasiana 287 Microsphaera Alni 38 Festuca elatior CLaviceps purpurea 58 Fragaria v.'rginiana Mycosphaerella Fragariae r 75 Dendrophona obscurans 190 Fraxinus americana Phyllactinia Corylea 44 Phyllosticta fraxinicola 203 Fraxinus nigra Phyllactiyiia Corylea 44 Galium concinuum Puccinia punctata 152 Galium triflorum Puccinia punctata 152 Geranium maculatura Erysiphe Polygoni 37 Plasmopara Gcranii 18 Gleditsia triaeanthos Mclasmia hypophylla 188 Microsphaera Alni 38 Helianthus annuus Erysiphe cichoracearum 34 Plasmopara Halstedii 17 Puccinia Helianthi 133 Septoria Helianthi 233 Helianthus deeapetalus Erysiphe cichoracearum 34 Helianthus divaricatus Puccinia Helianthi 133 Helianthus doronicoides Erysiphe cichoracearum 34 Helianthus grosseserratus Puccinia Helianthi 133 Helianthus hirsutus Puccinia Helianthi 133 Helianthus parviflorus Puccinia Helianthi 133 209 Helianthus strumosus Erysiphye cichoracearum 34 Puccinia Helianthi 133 Helianthus tracheliifolius Puccinia Helianthi 133 Helianthus tuberosus Erysiphe cichoracearum 34 Heliopsis helianthoides Septoria Helianthi 233 Hepatica aeutiloba Puccinia Pruni-spinosae 151 Urocystis Anemones .' 85 Hepatica triloba Puccinia Pruni-spinosae 151 Heuchera americana Septoria Heucherae 234 Hieracium scabrum Puccinia Hieracii 134 Hieracium sp. Sphaerotheca humuli var. fuliginea 47 Hydrangea arborescens Phyllosticta Hydrangeae 205 Pucciniastrum Hydrangeae 113 Hydrophyllum appendiculatum Erysiphe cichoracearum 34 Hydrophyllum eanadense Erysiphe cichoracearum 34 Hydrophyllum macrophyllum < Erysiphe cichoracearum 34 Hydrophyllum vtrginianum Erysiphe cichoracearum 34 Hystrix patula Phyllachora graminis 63 Septoria microspora 240 Impatiens biflora Plasmopara obducens 19 Puccinia Impatientis 135 Ramularia Impatientis 353 Impatiens pallida Ramularia Impatientis 353 Ipomoea hederacea Albiigo Ipomoeae panduranae 4 Ipomoea pandurata Albugo Ipomoea-panduranae 4 Coleosporium. Ipomoea 100 210 Iris virsicolor Cylindrosporiuni Iridis 271 Heterosporium gracile 339 Puccinia Iridis 136 Juglans cinerea Gnomonia leptostyla
Load more

Recommended publications
  • New Powdery Mildew on Tomatoes
    NEW POWDERY MILDEW ON TOMATOES Heather Scheck, Plant Pathologist Ag Commissioner’s Office, Santa Barbara County POWDERY MILDEW BIOLOGY Powdery mildew fungi are obligate, biotrophic parasites of the phylum Ascomycota of the Kingdom Fungi. The diseases they cause are common, widespread, and easily recognizable Individual species of powdery mildew fungi typically have a narrow host range, but the ones that infect Tomato are exceptionally large. Photo from APS Net POWDERY MILDEW BIOLOGY Unlike most fungal pathogens, powdery mildew fungi tend to grow superficially, or epiphytically, on plant surfaces. During the growing season, hyphae and spores are produced in large colonies that can coalesce Infections can also occur on stems, flowers, or fruit (but not tomato fruit) Our climate allows easy overwintering of inoculum and perfect summer temperatures for epidemics POWDERY MILDEW BIOLOGY Specialized absorption cells, termed haustoria, extend into the plant epidermal cells to obtain nutrition. Powdery mildew fungi can completely cover the exterior of the plant surfaces (leaves, stems, fruit) POWDERY MILDEW BIOLOGY Conidia (asexual spores) are also produced on plant surfaces during the growing season. The conidia develop either singly or in chains on specialized hyphae called conidiophores. Conidiophores arise from the epiphytic hyphae. This is the Anamorph. Courtesy J. Schlesselman POWDERY MILDEW BIOLOGY Some powdery mildew fungi produce sexual spores, known as ascospores, in a sac-like ascus, enclosed in a fruiting body called a chasmothecium (old name cleistothecium). This is the Teleomorph Chasmothecia are generally spherical with no natural opening; asci with ascospores are released when a crack develops in the wall of the fruiting body.
    [Show full text]
  • (US) 38E.85. a 38E SEE", A
    USOO957398OB2 (12) United States Patent (10) Patent No.: US 9,573,980 B2 Thompson et al. (45) Date of Patent: Feb. 21, 2017 (54) FUSION PROTEINS AND METHODS FOR 7.919,678 B2 4/2011 Mironov STIMULATING PLANT GROWTH, 88: R: g: Ei. al. 1 PROTECTING PLANTS FROM PATHOGENS, 3:42: ... g3 is et al. A61K 39.00 AND MMOBILIZING BACILLUS SPORES 2003/0228679 A1 12.2003 Smith et al." ON PLANT ROOTS 2004/OO77090 A1 4/2004 Short 2010/0205690 A1 8/2010 Blä sing et al. (71) Applicant: Spogen Biotech Inc., Columbia, MO 2010/0233.124 Al 9, 2010 Stewart et al. (US) 38E.85. A 38E SEE",teWart et aal. (72) Inventors: Brian Thompson, Columbia, MO (US); 5,3542011/0321197 AllA. '55.12/2011 SE",Schön et al.i. Katie Thompson, Columbia, MO (US) 2012fO259101 A1 10, 2012 Tan et al. 2012fO266327 A1 10, 2012 Sanz Molinero et al. (73) Assignee: Spogen Biotech Inc., Columbia, MO 2014/0259225 A1 9, 2014 Frank et al. US (US) FOREIGN PATENT DOCUMENTS (*) Notice: Subject to any disclaimer, the term of this CA 2146822 A1 10, 1995 patent is extended or adjusted under 35 EP O 792 363 B1 12/2003 U.S.C. 154(b) by 0 days. EP 1590466 B1 9, 2010 EP 2069504 B1 6, 2015 (21) Appl. No.: 14/213,525 WO O2/OO232 A2 1/2002 WO O306684.6 A1 8, 2003 1-1. WO 2005/028654 A1 3/2005 (22) Filed: Mar. 14, 2014 WO 2006/O12366 A2 2/2006 O O WO 2007/078127 A1 7/2007 (65) Prior Publication Data WO 2007/086898 A2 8, 2007 WO 2009037329 A2 3, 2009 US 2014/0274707 A1 Sep.
    [Show full text]
  • Erysiphe Salmonii (Erysiphales, Ascomycota), Another East Asian Powdery Mildew Fungus Introduced to Ukraine Vasyl P
    Гриби і грибоподібні організми Fungi and Fungi-like Organisms doi: 10.15407/ukrbotj74.03.212 Erysiphe salmonii (Erysiphales, Ascomycota), another East Asian powdery mildew fungus introduced to Ukraine Vasyl P. HELUTA1, Susumu TAKAMATSU2, Siska A.S. SIAHAAN2 1 M.G. Kholodny Institute of Botany, National Academy of Sciences of Ukraine 2 Tereshchenkivska Str., Kyiv 01004, Ukraine [email protected] 2 Department of Bioresources, Graduate School, Mie University 1577 Kurima-Machiya, Tsu 514-8507, Japan [email protected] Heluta V.P., Takamatsu S., Siahaan S.A.S. Erysiphe salmonii (Erysiphales, Ascomycota), another East Asian powdery mildew fungus introduced to Ukraine. Ukr. Bot. J., 2017, 74(3): 212–219. Abstract. In 2015, a powdery mildew caused by a fungus belonging to Erysiphe sect. Uncinula was recorded on two species of ash, Fraxinus excelsior and F. pennsylvanica (Oleaceae), from Ukraine (Kyiv, two localities). Based on the comparative morphological analysis of Ukrainian specimens with samples of Erysiphe fraxinicola and E. salmonii collected in Japan and the Far East of Russia, the fungus was identified as E. salmonii. This identification was confirmed using molecular phylogenetic analysis. This is the first report of E. salmonii not only in Ukraine but also in Europe. It is suggested that the records of E. fraxinicola from Belarus and Russia could have been misidentified and should be corrected to E. salmonii. In 2016, the fungus was found not only in Kyiv but also outside the city. The development of the fungus had symptoms of a potential epiphytotic disease. Thus, it may become invasive in Ukraine and spread to Western Europe in the near future.
    [Show full text]
  • Ohio Plant Disease Index
    Special Circular 128 December 1989 Ohio Plant Disease Index The Ohio State University Ohio Agricultural Research and Development Center Wooster, Ohio This page intentionally blank. Special Circular 128 December 1989 Ohio Plant Disease Index C. Wayne Ellett Department of Plant Pathology The Ohio State University Columbus, Ohio T · H · E OHIO ISJATE ! UNIVERSITY OARilL Kirklyn M. Kerr Director The Ohio State University Ohio Agricultural Research and Development Center Wooster, Ohio All publications of the Ohio Agricultural Research and Development Center are available to all potential dientele on a nondiscriminatory basis without regard to race, color, creed, religion, sexual orientation, national origin, sex, age, handicap, or Vietnam-era veteran status. 12-89-750 This page intentionally blank. Foreword The Ohio Plant Disease Index is the first step in develop­ Prof. Ellett has had considerable experience in the ing an authoritative and comprehensive compilation of plant diagnosis of Ohio plant diseases, and his scholarly approach diseases known to occur in the state of Ohia Prof. C. Wayne in preparing the index received the acclaim and support .of Ellett had worked diligently on the preparation of the first the plant pathology faculty at The Ohio State University. edition of the Ohio Plant Disease Index since his retirement This first edition stands as a remarkable ad substantial con­ as Professor Emeritus in 1981. The magnitude of the task tribution by Prof. Ellett. The index will serve us well as the is illustrated by the cataloguing of more than 3,600 entries complete reference for Ohio for many years to come. of recorded diseases on approximately 1,230 host or plant species in 124 families.
    [Show full text]
  • Effect of Environmental Conditions and Phenology in the Dispersal of Secondary Erysiphe Necator Conidia in a Vineyard
    Vitis 58 (Special Issue), 49–58 (2019) DOI: 10.5073/vitis.2019.58.special-issue.49-58 Effect of environmental conditions and phenology in the dispersal of secondary Erysiphe necator conidia in a vineyard E. GONZÁLEZ-FERNÁNDEZ1), A. PIÑA-REY1), M. FERNÁNDEZ-GONZÁLEZ1), 2) and F. J. RODRÍGUEZ-RAJO1) 1) CITACA, Agri-Food Research and Transfer Cluster, Sciences Faculty, University of Vigo, Ourense, Spain 2) Earth Sciences Institute (ICT), Pole of the Faculty of Sciences University of Porto, Porto, Portugal Summary ades, we are witnessing a huge agriculture mechanization and a rapid modernization of the European viticulture sector An integrated powdery mildew management strat- because of investments in this primary economical area. egy to identify the principal moments of secondary The biggest vineyard surface at world level was placed in Erysiphe necator conidia dispersal in a vineyard based Spain (13 %) been the third largest wine producer country on aerobiological, phenological and meteorological data (13 %) just below Italy (18 %) and France (17 %) (Mapama was developed. An adaptation of the physiological P-days 2016). Diseases and pests of crops affect potential yields and model was conducted to obtain a descriptive equation economic profits. A co-evolution of plants and their parasitic for the prediction of the advantageous meteorological fungi was detected, which explains their fitted adaptation conditions for Erysiphe necator conidia dispersal in the to the real changing conditions of the vineyard agrosystem. vineyards of the Ribeiro Designation of Origin area. The specific bioclimatological conditions of Northwest Moreover, a regression model was developed to predict Spain favour the development of fungal phytopathogenic the conidia concentration as a function of the weather diseases, which are responsible for remarkable annual yield and aerobiological variables with the highest influence loss.
    [Show full text]
  • The Risk Assessment Index in Grape Powdery Mildew Control Decisions and the Effect of Temperature and Humidity on Conidial Germination of Erysiphe Necator C
    Instituto Nacional de Investigación y Tecnología Agraria y Alimentaria (INIA) Spanish Journal of Agricultural Research 2007 5(4), 522-532 Available online at www.inia.es/sjar ISSN: 1695-971-X The risk assessment index in grape powdery mildew control decisions and the effect of temperature and humidity on conidial germination of Erysiphe necator C. E. Bendek, P. A. Campbell, R. Torres, A. Donoso and B. A. Latorre* Facultad de Agronomía e Ingeniería Forestal. Pontificia Universidad Católica de Chile. Casilla 306. Santiago. Chile Abstract Powdery mildew (Erysiphe necator) is a major disease of grapevines (Vitis vinifera) in Chile. Severe outbreaks have occurred recently despite the use of strict fungicide programs to control it. The objectives of this study were to evaluate the infection risk assessment index (RAI), to predict conditions for E. necator infection, and to study the effect of temperature (T), relative humidity (RH) and free moisture (FM) on conidial germination and disease development. Conidial germination was affected by T, RH, and FM. There were significant (p < 0.001) interactions between E. necator isolates and T and between isolates and RH. Conidial germination was optimal at 25°C. There was no germination at 5°C and 35°C. At 20°C, conidia germinated at a low RH (33-35%). Germination increased at a RH between 47 and 90% but decreased at higher RHs. Powdery mildew development on Carmenere, Chardonnay, and Merlot vines increased linearly from 6°C to 23°C. These grape cultivars were all equally susceptible to E. necator. Incubation periods varied. It was 13 to 14 d at 20°C or 23°C, 19 to 24 d at 10°C, and more than 23 d at 6°C.
    [Show full text]
  • Occurrence of the Fungi from the Genus Ampelomyces – Hyperparasites of Powdery Mildews (Erysiphales) Infesting Trees and Bushes in the Municipal Environment
    Vol. 80, No. 2: 169-174 , 2011 ACTA SOCIETATIS BOTANICORUM POLONIAE 169 OCCURRENCE OF THE FUNGI FROM THE GENUS AMPELOMYCES – HYPERPARASITES OF POWDERY MILDEWS (ERYSIPHALES) INFESTING TREES AND BUSHES IN THE MUNICIPAL ENVIRONMENT EWA SUCHARZEWSKA , M ARIA DYNOWSKA , A NETA BOŻENA KEMPA Department of Mycology, University of Warmia and Mazury in Olsztyn Oczapowskiego 1A,10-719 Olsztyn-Kortowo, Poland e-mail: [email protected] (Received: March 23, 2010. Accepted: July 19, 2010) ABSTRACT The studies refer to the phenomenon of hyperparasitism in the municipal environment. The paper presents the occurrence of fungi of the genus Ampelomyces on Erysiphales – important group of phytopathogenic fungi. For the first time in Poland analyzed degree of infestation of Erysiphales mycelium by Ampelomyces and effect of the hyperparsites on the degree of infestation plants by Erysiphales . The high participation of the Ampelomyces was noted in each year of the study. Substantial differences were noted in the occurrence of Ampelomyces depending on the developmental stage of the host fungi and considerable differences in the prevalence of the hyperparasites on particular Erysiphales species. In all cases examined , the mean index of infestation of host plants by Erysiphales was higher than the mean degree of infestation of powdery mildew mycelium by Ampelomyces . The results indicate that under natural conditions they do not play any significant role in the reduction of the degree of infestation of host plants by Erysiphales and do not disturb drastically their life cycle. KEY WORDS: Ampelomyces , Erysiphales, hyperparasites, municipal environment. INTRODUCTION Kiss at al. 2004). In turn , still little attention is paid to the ecology of those parasites , their occurrence and effect on Fungi from the genus Ampelomyces (Ces.
    [Show full text]
  • Full Text [PDF]
    ® The European Journal of Plant Science and Biotechnology ©2011 Global Science Books Powdery Mildews on Ornamental Trees and Shrubs in Norway Venche Talgø1* • Leif Sundheim1 • Halvor B. Gjærum1 • Maria Luz Herrero1 • Aruppillai Suthaparan2 • Brita Toppe1 • Arne Stensvand1 1 Norwegian Institute for Agricultural and Environmental Research, Plant Health and Plant Protection Division, 1432 Ås, Norway 2 Norwegian University of Life Sciences, Department of Plant and Environmental Sciences, 1432 Ås, Norway Corresponding author : * [email protected] ABSTRACT This paper presents powdery mildew species recorded on woody ornamentals, with special emphasis on the latest arrivals; Erysiphe flexuosa on horse chestnut (Aesculus hippocastanum), Erysiphe syringae-japonicae on lilac (Syringa vulgaris) and Podosphaera spiraeae on white spirea (Spiraea betulifolia). The two former were found in 2006, while the latter was first detected in 2008. Chasmothecia (formerly named cleistothecia) were not found on white spirea until 2010. Several locations seemed to have optimal conditions for development of powdery mildew diseases in 2006. That year the long established Sawadaea bicornis on sycamore maple (Acer pseudo- platanus), was found for the first time on tatarian maple (Acer tataricum ssp. ginnala) and one cultivar from hedge maple (Acer campestre ‘Red Shine’). Also several species and cultivars of Rhododendron had massive attacks of powdery mildew in 2006. In 2010, chasmothecia of E. azaleae were found on severely affected R. ‘Magnifica’ in western
    [Show full text]
  • Annual Report of the State Botanist 1890
    [From the 44th Report of the New York State Museu>^ of Xaturai, History] ANNUAL REPORT STATE BOTANIST State of New York. Made to the Reg^ents of the University, Pursuant to Chapter 355 of the Laws of 1883. By CHARLES H. PECK. ALBANY: JAMES B. LYON, STATE PRINTER. 1891. State of New York. No. 77. IN SKNATB, January 31, 1891. ANNUAL REPORT ' SXAXE BOTANIST Office of the State Botanist, \ Albany, January 31, 1891. ) To the Honorable the Regents of the University of the State of Neio York : I have the honor to present to you my annual report for the year 1890. Very respectfully. CHARLES H. PECK. : : REPORT. To the Regents of the University of the State of New York Gentlemen.— I have the honor of communicating to you the fol- lowing- report Specimens of plants for the State Herbarium have been collected and prepared by the Botanist during the past year in the counties of Albany, Columbia, Cattaraugus, Dutchess, Essex, Greene, Ham- ilton, Oneida, Oswego, Putnam, Rensselaer, Steuben and Warren. Specimens contributed by correspondents have been collected in the counties of Dutchess, Onondaga, Ontario, Orleans, Oswego, St. Lawrence and Westchester. Specimens of 269 species of plants have been added to the Herb- arium, of which 254 were collected by the Botanist and 15 were contributed. Of the former 72 are hew to the Herbarium, of the latter 11. The number of species represented in the Herbarium has, therefore, been increased by 83. Of the remaining 186 species, the specimens represent forms or varieties not before represented or not well shown, or are specimens intended to accompany the trunk sections now being made of the trees of the State.
    [Show full text]
  • Notes on the Powdery Mildews of Ohio
    NOTES ON THE POWDERY MILDEWS OF OHIO. BRUCE FINK, Miami University. My interest in the powdery mildews dates from 1884, when I was a student of the first class-room teacher of mycology, the late Dr. T. J. Burrill, of the University of Illinois. My first publication on fungi dealt with this group, and my interest has never abated. My collecting in Ohio began shortly after entering the State in the summer of 1906, and two of my students, Mr. E. E. Duncan and Miss Esther Young, have spent a considerable amount of time in studying the group in my laboratory. Miss Freda M. Bachman and Mr. W. G. Stover have also aided considerably with the, collecting and determinations. Mr. A. D. Selby published "The Ohio Erysipheas" in a Bulletin of the Ohio Agricultural Experimental Station for 1893, and Mr. W. C. O'Kane published "The Ohio Powdery Mildews" in THE OHIO NATURALIST for May, 1910. The last paper follows the nomenclature of E. S. Salmon and furnishes keys and short diagnoses. This publication will still be found useful in studying the powdery mildews of Ohio, and I only hope, in the present paper, to supplement it by additions of localities, hosts, and species not previously reported from Ohio. The mycelia of powdery mildews usually occur on the leaves or the small stems or twigs of seed plants, and these fungi are easily collected by those who are accustomed to observe small fungi, provided that the mycelia are fairly con- spicuous. In summer and autumn, these parasites may be observed on the leaves of goldenrods, asters, sunflowers, yard grass, ragweeds, verbenas, roses, willows, oaks, lilacs, and other herbs, shrubs, and trees.
    [Show full text]
  • A Revised List of South African Erysiphaceae (Powdery Mildews) and Their Host Plants
    566 S.Afr.J.Bot., 1993, 59(6): 566 - 568 A revised list of South African Erysiphaceae (powdery mildews) and their host plants G.J.M.A. Gorter Mycology Unit, Biosystematics Division, Plant Protection Research Institute, Private Bag X134, Pretoria, 0001 Republic of South Africa Received 17 May 1993; revised 5 July 1993 A new list of South African Erysiphaceae, wh ich includes nomenclatural changes and newly recorded species and host plants, is presented with a few introductory remarks. 'n Nuwe Iys van Suid-Afrikaanse Erysiphaceae word aangebied wat behalwe nomenklatuurveranderings en nuut aangetekende spesies en gasheerplante, ook enkele inleidende opmerkings bevat. Keywords: Erysiphaceae, host plants, South Africa. Introduction be maintained as a separate species. The more recently The monumental new monograph of the Erysiphales by described P. cassiae Gorter & Eicker (1986) and P. gorteri Braun (1987), a publication which only recently became Eicker (1988) have aberrant spore shapes as well and are available to the author, has necessitated some nomenclatural therefore considered separate taxa. changes in the scientific names recorded by me in my com­ With regard to Uncinula praeterita Marasas & Schumann, pilation of South African powdery mildew fungi published after due consideration of all taxonomically relevant fea­ in 1988 (Gorter 1988). The description of new local taxa tures, I am of the opinion that Braun has been premature in (Eicker 1988; Gorter 1989b; Gorter & Marasas 1988) as giving it the status of a variety of Uncinula udaiparensis well as the recording of more host plants, of which some Bhatnagar & Kothari. Although both Uncinulas are no doubt have already been published (Gorter 1989a), are additional closely related, there are clear differences in the size of the reasons for presenting a new list.
    [Show full text]
  • Fungicide and Clay Treatments for Control of Powdery Mildew
    HORTSCIENCE 41(1):176–182. 2006. disrupted by fungicides which in turn could affect wine quality. An important fungal plant pathogen of Fungicide and Clay Treatments for grapes is Erysiphe necator Schwein. var. necator (formerly Uncinula necator) which Control of Powdery Mildew Infl uence causes powdery mildew (Pearson, 1988) reducing yield and quality of juice and wine Wine Grape Microfl ora from infected grapes (Calonnec et al., 2004; Gadoury et al., 2001). Powdery mildew is Peter Sholberg, Colleen Harlton, Julie Boulé, Paula Haag controlled by several fungicides belonging Pacifi c Agri-Food Research Centre, Agriculture and Agri-Food Canada, 4200 to the demethylation-inhibiting, strobilurin, Highway 97, Summerland, B.C. V0H 1Z0, Canada and quinoxyfen classes (Sholberg, 2004). It is also controlled by a number of organically Additional index words. bacteria, ‘Chancellor’, fungi, ‘Pinot noir’, pseudomonads, produced materials in which sulphur is the ‘Riesling’, Uncinula necator, Vitis vinifera, yeast most important member. Some other organics are mineral and vegetable oils (Northover and Abstract. There is very little information on the interaction of wine grape microfl ora with Schneider, 1996), potassium silicate (Reynolds fungicides used to control grape diseases. The objective of this study was to determine et al., 1996), and clay (Ehret et al., 2001; Shol- how fungicides used in a standard grape pest management program and an experimental berg and Boulé, 2001). In addition to powdery clay being developed for control of powdery mildew affect grape microfl ora. Grape leaves mildew, bunch rot and phomopsis cane and leaf and fruit were surveyed for bacteria, fungi and yeast six times over the growing season spot are important in grape pest management.
    [Show full text]