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Cherry Leaf Spot
CHERRY LEAF SPOT 695 maturely defoliated produced fewer blossoms the following year, the flowers were poorly developed and slower in opening, fewer cherries ripened, and the cherries were smaller. Many fruit spurs died, and the crop was greatly reduced on the spurs that survived. By reducing shoot growth and spur Cherry development, the defoliation lowered the yield for several years. Following the worst outbreak of Leaf Spot cherry leaf spot on record in the Cum- berland-Shenandoah Valley in 1945, thousands of sour cherry trees died and F. H. Lewis many others had severe injuries. In Virginia on trees defoliated in Cherry leaf spot, caused by the para- May and June of 1945, the average sitic fungus Coccomyces hiemalis^ is one of weight of the buds in late summer was the major factors that determine the 90 milligrams.' The buds on trees that cost of producing cherries and the had retained their foliage averaged 147 yield and quality of the fruit. milligrams in weight. The smaller buds The disease occurs on the sour did not have enough vitality to survive cherry, Prunus cerasus, sweet cherry, P, the winter. All unsprayed trees died. avium, and the mahaleb cherry, P, None of the trees died in one orchard mahaleb, wherever they are grown where sprays had delayed defoliation under conditions that favor the sur- 4 weeks or more. vival of the fungus. That includes our Heavy early defoliation in West Vir- eastern and central producing areas ginia in 1945 stimulated the produc- and the more humid areas in the West. tion of secondary growth on 64 percent Because it has been most serious on of the terminals about 2 weeks after sour cherry in the Eastern and Central harvest. -
Original Research Article
1 Original Research Article 2 3 THE MALOIDEAE (ROSACEAE) STRUCTURAL AND FUNCTIONAL FEATURES 4 DETERMINING PASSIVE IMMUNITY TO MYCOSIS 5 6 7 With the help of microscopic methods the leaves and fruits surface tissues of plants of four 8 genera of the Maloideae subfamily were screened: Malus Mill., Pyrus L., Cydonia Mill., 9 Mespilus L., as model objects, and attempts were made to explain the dependence of mycosis 10 damage on microstructural features. The species composition of fungi that cause damage to the 11 Maloideae leaves and fruits in the Russia southern regions is analyzed. It is established that 12 among pathogens with different types of parasitism there are common excitants, as well as 13 highly specialized, more represented on Mespilus germanica. Higher resistance to the complex 14 of fungal diseases, in comparison with apple and pear, was found in quince and medlar. This 15 stability at the initial stage of the pathological process is associated with structural features such 16 as micromorphology of the fruits and stomata cuticle in the abaxial leaves epidermis. The leaves 17 stomatal cracks of the medlar are narrow with raised outgrowths, on the surface of the fruit – the 18 layered structure of the cuticular layer. Quince has a powerful continuous cuticular cover. 19 Compared with Malus and Pyrus, Cydonia and Mespilus also have a large (30 % or more) 20 polyphenol content in the pericarp outer layer cells. In addition to the gender-specific differences 21 in the microstructure of the integumentary tissues and the content of polyphenols affecting the 22 resistance to pathogens at the stage of their penetration, general patterns of leaf surface 23 formation, such as hypostomacy, anomocytic stomata, folded microrelief of the cuticular surface, 24 and the presence of single and multicellular trichomes are noted. -
Old Woman Creek National Estuarine Research Reserve Management Plan 2011-2016
Old Woman Creek National Estuarine Research Reserve Management Plan 2011-2016 April 1981 Revised, May 1982 2nd revision, April 1983 3rd revision, December 1999 4th revision, May 2011 Prepared for U.S. Department of Commerce Ohio Department of Natural Resources National Oceanic and Atmospheric Administration Division of Wildlife Office of Ocean and Coastal Resource Management 2045 Morse Road, Bldg. G Estuarine Reserves Division Columbus, Ohio 1305 East West Highway 43229-6693 Silver Spring, MD 20910 This management plan has been developed in accordance with NOAA regulations, including all provisions for public involvement. It is consistent with the congressional intent of Section 315 of the Coastal Zone Management Act of 1972, as amended, and the provisions of the Ohio Coastal Management Program. OWC NERR Management Plan, 2011 - 2016 Acknowledgements This management plan was prepared by the staff and Advisory Council of the Old Woman Creek National Estuarine Research Reserve (OWC NERR), in collaboration with the Ohio Department of Natural Resources-Division of Wildlife. Participants in the planning process included: Manager, Frank Lopez; Research Coordinator, Dr. David Klarer; Coastal Training Program Coordinator, Heather Elmer; Education Coordinator, Ann Keefe; Education Specialist Phoebe Van Zoest; and Office Assistant, Gloria Pasterak. Other Reserve staff including Dick Boyer and Marje Bernhardt contributed their expertise to numerous planning meetings. The Reserve is grateful for the input and recommendations provided by members of the Old Woman Creek NERR Advisory Council. The Reserve is appreciative of the review, guidance, and council of Division of Wildlife Executive Administrator Dave Scott and the mapping expertise of Keith Lott and the late Steve Barry. -
Investigation of Biological Peculiarities of Blumeriella Jaapii
Plant Protection Science – 2002 Investigation of Biological Peculiarities of Blumeriella jaapii A. VALIUSHKAITE Plant Protection Laboratory, Lithuanian Institute of Horticulture, LT-4335 Babtai, Kaunas District, Lithuania E-mail: [email protected] Abstract Leaf spot pathogen is characterized as a highly developed parasite after investigation of development peculiarities of the fungus in pure culture and natural conditions. The degree of correlation depended on the medium. Impact of incubation temperature on Blumeriella jaapii (Rehm) Arx growth was different. Fungi colonies formed more intensively and their diameter increased significantly under higher temperature. Optimal conditions for the disease prevalence are 15–20°C and moisture. Relative humidity and precipitation influenced maturation of ascomycetes and discharge of ascospores (r = +0.89). Microscopic analysis of leaves showed that during winter thaw, when the average temperature is about 0 ± 5ºC and relative humidity is higher than 70%, was possible to detect mature ascomycetes and conidia. It is possible to affirm that lower temperature than it was assumed is sufficient for formation of ascomycetes. Keywords: Blumeriella jaapii; sour cherry; cherry leaf spot; medium, mycelium; growth speed; conditions INTRODUCTION expendient to investigate the biological peculiarities of Blumeriella jaapii. Cherry leaf spot, caused by Blumeriella jaapii (Rehm) Arx (syn. Coccomyces hiemlis Higg.), is a MATERIALS AND METHODS widespread disease of sour cherry (Prunus cerasus L.). It is a major disease of sour cherries in North In 1996–1999 the fungus Blumeriella jaapii, a patho- America (SJULIN et al. 1989), and in Europe serious gen of sour cherry leaf spot, and the accompanying losses have been reported in Poland (BIELENIN et al. -
Preliminary Classification of Leotiomycetes
Mycosphere 10(1): 310–489 (2019) www.mycosphere.org ISSN 2077 7019 Article Doi 10.5943/mycosphere/10/1/7 Preliminary classification of Leotiomycetes Ekanayaka AH1,2, Hyde KD1,2, Gentekaki E2,3, McKenzie EHC4, Zhao Q1,*, Bulgakov TS5, Camporesi E6,7 1Key Laboratory for Plant Diversity and Biogeography of East Asia, Kunming Institute of Botany, Chinese Academy of Sciences, Kunming 650201, Yunnan, China 2Center of Excellence in Fungal Research, Mae Fah Luang University, Chiang Rai, 57100, Thailand 3School of Science, Mae Fah Luang University, Chiang Rai, 57100, Thailand 4Landcare Research Manaaki Whenua, Private Bag 92170, Auckland, New Zealand 5Russian Research Institute of Floriculture and Subtropical Crops, 2/28 Yana Fabritsiusa Street, Sochi 354002, Krasnodar region, Russia 6A.M.B. Gruppo Micologico Forlivese “Antonio Cicognani”, Via Roma 18, Forlì, Italy. 7A.M.B. Circolo Micologico “Giovanni Carini”, C.P. 314 Brescia, Italy. Ekanayaka AH, Hyde KD, Gentekaki E, McKenzie EHC, Zhao Q, Bulgakov TS, Camporesi E 2019 – Preliminary classification of Leotiomycetes. Mycosphere 10(1), 310–489, Doi 10.5943/mycosphere/10/1/7 Abstract Leotiomycetes is regarded as the inoperculate class of discomycetes within the phylum Ascomycota. Taxa are mainly characterized by asci with a simple pore blueing in Melzer’s reagent, although some taxa have lost this character. The monophyly of this class has been verified in several recent molecular studies. However, circumscription of the orders, families and generic level delimitation are still unsettled. This paper provides a modified backbone tree for the class Leotiomycetes based on phylogenetic analysis of combined ITS, LSU, SSU, TEF, and RPB2 loci. In the phylogenetic analysis, Leotiomycetes separates into 19 clades, which can be recognized as orders and order-level clades. -
Diseases of Trees in the Great Plains
United States Department of Agriculture Diseases of Trees in the Great Plains Forest Rocky Mountain General Technical Service Research Station Report RMRS-GTR-335 November 2016 Bergdahl, Aaron D.; Hill, Alison, tech. coords. 2016. Diseases of trees in the Great Plains. Gen. Tech. Rep. RMRS-GTR-335. Fort Collins, CO: U.S. Department of Agriculture, Forest Service, Rocky Mountain Research Station. 229 p. Abstract Hosts, distribution, symptoms and signs, disease cycle, and management strategies are described for 84 hardwood and 32 conifer diseases in 56 chapters. Color illustrations are provided to aid in accurate diagnosis. A glossary of technical terms and indexes to hosts and pathogens also are included. Keywords: Tree diseases, forest pathology, Great Plains, forest and tree health, windbreaks. Cover photos by: James A. Walla (top left), Laurie J. Stepanek (top right), David Leatherman (middle left), Aaron D. Bergdahl (middle right), James T. Blodgett (bottom left) and Laurie J. Stepanek (bottom right). To learn more about RMRS publications or search our online titles: www.fs.fed.us/rm/publications www.treesearch.fs.fed.us/ Background This technical report provides a guide to assist arborists, landowners, woody plant pest management specialists, foresters, and plant pathologists in the diagnosis and control of tree diseases encountered in the Great Plains. It contains 56 chapters on tree diseases prepared by 27 authors, and emphasizes disease situations as observed in the 10 states of the Great Plains: Colorado, Kansas, Montana, Nebraska, New Mexico, North Dakota, Oklahoma, South Dakota, Texas, and Wyoming. The need for an updated tree disease guide for the Great Plains has been recog- nized for some time and an account of the history of this publication is provided here. -
Agroforestry News Index Vol 1 to Vol 22 No 2
Agroforestry News Index Vol 1 to Vol 22 No 2 2 A.R.T. nursery ..... Vol 2, No 4, page 2 Acorns, edible from oaks ..... Vol 5, No 4, page 3 Aaron, J R & Richards: British woodland produce (book review) ..... Acorns, harvesting ..... Vol 5, No 4, Vol 1, No 4, page 34 page 3 Abies balsamea ..... Vol 8, No 2, page Acorns, nutritional composition ..... 31 Vol 5, No 4, page 4 Abies sibirica ..... Vol 8, No 2, page 31 Acorns, removing tannins from ..... Vol 5, No 4, page 4 Abies species ..... Vol 19, No 1, page 13 Acorns, shelling ..... Vol 5, No 4, page 3 Acca sellowiana ..... Vol 9, No 3, page 4 Acorns, utilisation ..... Vol 5, No 4, page 4 Acer macrophyllum ..... Vol 16, No 2, page 6 Acorus calamus ..... Vol 8, No 4, page 6 Acer pseudoplatanus ..... Vol 3, No 1, page 3 Actinidia arguta ..... Vol 1, No 4, page 10 Acer saccharum ..... Vol 16, No 1, page 3 Actinidia arguta, cultivars ..... Vol 1, No 4, page 14 Acer saccharum - strawberry agroforestry system ..... Vol 8, No 1, Actinidia arguta, description ..... Vol page 2 1, No 4, page 10 Acer species, with edible saps ..... Vol Actinidia arguta, drawings ..... Vol 1, 2, No 3, page 26 No 4, page 15 Achillea millefolium ..... Vol 8, No 4, Actinidia arguta, feeding & irrigaton page 5 ..... Vol 1, No 4, page 11 3 Actinidia arguta, fruiting ..... Vol 1, Actinidia spp ..... Vol 5, No 1, page 18 No 4, page 13 Actinorhizal plants ..... Vol 3, No 3, Actinidia arguta, nurseries page 30 supplying ..... Vol 1, No 4, page 16 Acworth, J M: The potential for farm Actinidia arguta, pests and diseases forestry, agroforestry and novel tree .... -
Fungicide Application and Residues in Control of Blumeriella Jaapii (Rehm) Arx in Sweet Cherry
Emirates Journal of Food and Agriculture. 2021. 33(3): 253-259 doi: 10.9755/ejfa.2021.v33.i3.2659 http://www.ejfa.me/ RESEARCH ARTICLE Fungicide application and residues in control of Blumeriella jaapii (Rehm) Arx in sweet cherry Vladimir Božić1, Slavica Vuković2, Mila Grahovac2, Sanja Lazić2, Goran Aleksić3, Dragana Šunjka2 1CI “Plant protection”, Toplicki partizanski odred 151, Niš, Serbia, 2University of Novi Sad, Faculty of Agriculture, Trg Dositeja Obradovica 8, Novi Sad, Serbia, 3Institute of Plant Protection and Environment, Teodora Drajzera 9, Belgrade, Serbia ABSTRACT Fungicides are significant disease control tool in increasing agricultural production, however, their intensive application has led to environmental problems including health hazards. To minimize harmful effects of the fungicide application in sweet cherry orchards, it is necessary to use them in accordance with the good agricultural practice and to monitor presence of their residues. Cherry leaf spot caused by Blumeriella jaapii is a significant sweet cherry disease which control is heavily dependent on fungicide treatments. In this study, effects of fungicide treatments against B. jaapii and fungicide residues remaining in sweet cherry fruits after the treatments were evaluated, and the causal agent of cherry leaf spot was confirmed on cherry leaves from untreated control plots using conventional phytopathological techniques (isolation on nutrient media and morphological traits of developed fungal colonies). The trial was set up at two localities in south Serbia (District of Niš), in sweet cherry orchards, according to EPPO methods. Fungicides tested against B. jaapii were based on dodine (650 g a.i./kg) WP formulation, at concentration of 0.1% and mancozeb (800 g a.i./kg) WP formulation, at concentration of 0.25%. -
Reduction in the Use of Fungicides in Apple and Sour Cherry Production by Preventative Methods and Warning Systems
Reduction in the use of fungicides in apple and sour cherry production by preventative methods and warning systems Pesticides Research No. 139 2012 Title: Authors & contributors: Reduction in the use of fungicides in apple and 1Hanne Lindhard Pedersen, 2Birgit Jensen, 3Lisa Munk, 2,4Marianne Bengtsson and 5Marc Trapman sour cherry production by preventative methods and warning systems 1Department of Food Science, Aarhus University, Denmark. (AU- Aarslev) 2Department of Plant Biology and Biotechnology, Faculty of Life Sciences, University of Copenhagen, Denmark 3Department of Agriculture and Ecology, Faculty of Life Sciences, University of Copenhagen, Denmark 4present address: Patent & Science Information Research, Novo Nordisk A/S, Denmark 5BioFruit Advies, The Netherlands. 1 Institut for Fødevarer, Aarhus Universitet, (AU-Aarslev) 2 Institut for Plantebiologi og Bioteknologi, Det Biovidenskabelige Fakultet, Københavns Universitet 3 Institut for Jordbrug og Økologi, Det Biovidenskabelige Fakultet, Københavns Universitet. 4 Patent & Science Information Research, Novo Nordisk A/S, Danmark. 5 BioFruit Advies, Holland. Publisher: Miljøstyrelsen Strandgade 29 1401 København K www.mst.dk Year: 2012 ISBN no. 978-87-92779-70-0 Disclaimer: The Danish Environmental Protection Agency will, when opportunity offers, publish reports and contributions relating to environmental research and development projects financed via the Danish EPA. Please note that publication does not signify that the contents of the reports necessarily reflect the views of the Danish EPA. The reports are, however, published because the Danish EPA finds that the studies represent a valuable contribution to the debate on environmental policy in Denmark. May be quoted provided the source is acknowledged. 2 Reduction in the use of fungicides in apple and sour cherry production by preventative methods and warning systems Content PREFACE 5 SAMMENFATNING OG KONKLUSIONER 7 SUMMARY AND CONCLUSIONS 9 1. -
Diplocarpon Rosae) Genetic Diversity in Eastern North America Using Amplified Fragment Length Polymorphism and Implications for Resistance Screening
J. AMER.SOC.HORT.SCI. 132(4):534–540. 2007. Distribution of Rose Black Spot (Diplocarpon rosae) Genetic Diversity in Eastern North America Using Amplified Fragment Length Polymorphism and Implications for Resistance Screening Vance M. Whitaker and Stan C. Hokanson1 Department of Horticultural Science, University of Minnesota, 258 Alderman Hall, 1970 Folwell Avenue, St. Paul, MN 55108 James Bradeen Department of Plant Pathology, University of Minnesota, 495 Borlaug Hall, 1991 Upper Buford Circle, St. Paul, MN 55108 ADDITIONAL INDEX WORDS. AMOVA, dendrogram, fungal isolate, Jaccard’s coefficient, pathogenic race, principal component analysis ABSTRACT. Black spot, incited by the fungus Diplocarpon rosae Wolf, is the most significant disease problem of landscape roses (Rosa hybrida L.) worldwide. The documented presence of pathogenic races necessitates that rose breeders screen germplasm with isolates that represent the range of D. rosae diversity for their target region. The objectives of this study were to characterize the genetic diversity of single-spore isolates from eastern North America and to examine their distribution according to geographic origin, host of origin, and race. Fifty isolates of D. rosae were collected from roses representing multiple horticultural classes in disparate locations across eastern North America and analyzed by amplified fragment length polymorphism. Considerable marker diversity among isolates was discovered, although phenetic and cladistic analyses revealed no significant clustering according to host of origin or race. Some clustering within collection locations suggested short-distance dispersal through asexual conidia. Lack of clustering resulting from geographic origin was consistent with movement of D. rosae on vegetatively propagated roses. Results suggest that field screening for black spot resistance in multiple locations may not be necessary; however, controlled inoculations with single-spore isolates representing known races is desirable as a result of the inherent limitations of field screening. -
Morchella Exuberans – Ny Murkla För Sverige
Svensk Mykologisk Tidskrift Volym 36 · nummer 3 · 2015 Svensk Mykologisk Tidskrift 1J@C%RV`:` 1R1$:`7 www.svampar.se 0VJ@7@QCQ$1@/ Sveriges Mykologiska Förening /VJ]%GC1HV`:`Q`1$1J:C:` 1@C:`IVR0:I]R Föreningen verkar för :J@J7 J1J$QH.IVR0VJ@ QH.JQ`RV%`Q]V1@ R VJ G?`V @?JJVRQI QI 0V`1$V 0:I]:` QH. 1J `VV8/VJ% @QIIV`IVR`7`:J%IIV` 0:I]:``QCC1J: %`VJ ]V`B`QH.?$:00V`1$V7@QCQ$1@:DV`VJ1J$8 R@7RR:0J: %`VJQH.:0:I]]CQH@J1J$QH.- 9 `%@ 1QJV` 1CC`V``: :`V`1JJ]BD7.VI1R: J: %]] `?R:JRV1@Q$QH.I:`@@V`%JRV`1:@ - 11180:I]:`8V8/VJV`.BCC$VJQI- :$:JRV:0$?CC:JRVC:$:` CVI@:] 1 D8/VJ ``:I ?CC IVR G1R`:$ R : @QJ :@ V` IVCC:J CQ@:C: 0:I]`V`VJ1J$:` QH. ``BJ/Q`V<: .Q` I1JJV`QJR8 0:I]1J `VV`:RV1C:JRV %JRV`C?: R:@QJ :@ %]]`?.BCCIVRI7@QCQ$1@:`V`- $:`1$`:JJC?JRV` R VJ :I0V`@:J IVR I7@QCQ$1@ `Q`@J1J$ QH. Redaktion 0V VJ@:]8 JVR:@ V`QH.:J0:`1$% $10:`V 1@:VCKQJ VRCVI@:]V`.BCCV$VJQI1J?J1J$:0IVRCVIR LH=: :J :0 VJ]B`V`VJ1J$VJG:J@$1`Q /JNLLHO//;< 5388-7733 =0:I]:`8V VRCVI:0 VJ` 7 [ 7`V`IVRCVII:`GQ::10V`1$V H=AQJVGQ`$ [ 7`V`IVRCVII:`GQ::% :J`V`0V`1$V G:`J: :`0V [ 7 `V` %RV`:JRVIVRCVII:`GQ::1 6: .:II:`01@ 0V`1$^6 _ VC8 [ 7 `V``=^=/_ =8H`QJVGQ`QI %GH`1]``QI:G`Q:R:`V1VCHQIV82:7IVJ Jan Nilsson `Q` ^46 _H:JGVI:RVG7H`VR1 H:`RG7 IVGV`$ 01Q%`1VG.Q]: 11180:I]:`8VQ` QQ%` :LL;J4< G:J@:HHQ%J7 =$8V 9:;<74 :9AL9D/74E4 Äldre nummer :00VJ@7@QCQ$1@/^ KNJE/KOJ<;<_`1JJ]BVJAEQI@:JGV ?CC: Sveriges Mykologiska Förening ``BJD8 9=V VJ@:] Previous issues Q` 0VJ@ 7@QCQ$1@ / ^KNJE/KOJ<;<_:`V:0:1C:GCVQJ:AE1 GVGQ`$%J10V`1 V H:JGVQ`RV`VR``QID8 :6 GVGQ`$ 11180:I]:`8V Omslagsbild 2:]V$=:6^C1Q].Q`%]1:H1J%_DQ H_ 8 I detta nummer nr 3 2015 *_77`J`7 SMF 2 Kompakt taggsvamp (Hydnellum compac- B`0]%]IG$ tum_ŽJB$`: :J@:`QIRVV@. -
Dermea Piceina (Dermateaceae): an Unrecorded Endophytic Fungus of Isolated from Abies Koreana
The Korean Journal of Mycology www.kjmycology.or.kr RESEARCH NOTE Dermea piceina (Dermateaceae): An Unrecorded Endophytic Fungus of Isolated from Abies koreana 1,* 1 2 Ju-Kyeong Eo , Eunsu Park , and Han-Na Choe 1 Division of Climate and Ecology, Bureau of Conservation & Assessment Research, National Institute of Ecology, Seocheon 33657, Korea 2 Biological Resource Center, Korea Research Institute of Bioscience and Biotechnology, Jeongeup 56212, Korea * Corresponding author: [email protected] ABSTRACT We found an unrecorded endophytic fungus, Dermea piceina J.W. Groves, isolated from alpine conifer Abies koreana. Until now only one Dermea species, D. cerasi, has been reported in Korea. In this study, we compared morphological characteristics and DNA sequences, including internal transcribed spacer and 28S ribosomal DNA, of D. piceina isolated from A. koreana with those of related species. Here, we present morphological and molecular characters of this fungus for the first time in Korea. Key word: Abies koreana, Dermea piceina, Endophytic fungi, Korea The genus Dermea Fr. contains 24 species worldwide [1]. Until now only one species, D. cerasi, had been discovered in Korea on fallen branches in the national park of Byeonsanbando [2]. Since then, there was no additional record of Dermea species therein. The apothecium of Dermea is very hard, leathery, dark brown OPEN ACCESS pISSN : 0253-651X to black in color and has a clavate ascus with eight ascospores. In the asexual stage, the macroconidium is eISSN : 2383-5249 sickle-shaped or filiform with 0-3 septa, and the microconidium is rod or filiform without septa [3]. Kor. J. Mycol. 2020 December, 48(4): 485-489 Alpine conifers are vulnerable to climate change [4].