DOCSLIB.ORG

(Melanaphis Sacchari) on SORGHUM a Thesis by ERIN

Total Page：16

File Type：pdf, Size：1020Kb

Download full-text PDF Read full-text
(Melanaphis Sacchari) on SORGHUM a Thesis by ERIN SPECIES COMPOSITION AND ACTIVITY OF THE NATURAL ENEMIES OF SUGARCANE APHID (Melanaphis sacchari) ON SORGHUM A Thesis by ERIN LYNETTE MAXSON Submitted to the Office of Graduate and Professional Studies of Texas A&M University in partial fulfillment of the requirements for the degree of MASTER OF SCIENCE Chair of Committee, James B. Woolley Co-Chair of Committee, Michael Brewer Committee Member, William Rooney Head of Department, David Ragsdale December 2017 Major Subject: Entomology Copyright 2017 Erin Maxson ABSTRACT The sugarcane aphid (Melanaphis sacchari) is an emergent sorghum pest in the southern United States. The objectives of this study were to identify the natural enemy species that are feeding on the aphid in grain sorghum in Texas, track seasonal changes in aphid and natural enemy populations across sorghum hybrids that have differing levels of susceptibility to the aphid, and measure aphid suppression by natural enemies of different size classes. Aphids and natural enemies were sampled on multiple sorghum hybrids at two field locations in south and central Texas over two years. Additionally, aphid suppression by natural enemies of two size classes was evaluated using exclusion cages. Aphids and natural enemies in both locations showed a trend of greater peak abundance on relatively more aphid-susceptible hybrids. At least 19 natural enemy species were present, consisting of parasitoids (Aphelinus sp. and Lysiphlebus testaceipes), lady beetles (Coccinellidae), hoverflies (Syrphidae), lacewings (Chrysopidae and Hemerobiidae), and minute pirate bugs (Anthocoridae). Aphelinus was heavily hyperparasitized by Syrphophagus aphidivorus. Aphelinus and Coccinellidae, the numerically dominant taxa, maintained high activity on resistant sorghum for a longer period than on susceptible sorghum. Natural enemy densities were similarly proportionate to aphid densities on both aphid-susceptible and aphid- resistant plants. In the cage experiment, small lady beetles (Coccinellidae: Scymninae) were the only natural enemies to differ significantly in density between treatments. Scymninae density and Scymninae per aphid were greatest in closed standard mesh ii cages. Scymninae density was greater on closed and open standard mesh than on fine mesh. Scymninae per aphid was higher on the resistant x susceptible hybrid. However, aphid density did not differ between cages or hybrids; therefore, aphid suppression was not detected. Problems and potential solutions involving cage integrity are discussed. Overall, the existing community of aphidophagous insects in Texas has responded rapidly to the sugarcane aphid’s introduction. Continuity in species composition and population trends across both counties and years indicates that the observed response is not an isolated event. The natural enemy complex was observed on both susceptible and resistant hybrids, suggesting that local natural enemies of the sugarcane aphid can complement host plant resistance. iii DEDICATION To my parents. iv ACKNOWLEDGEMENTS I thank Professor James Woolley, Jewel Coffey, Xanthe Shirley, and the other current and past members of the Woolley lab of the Department of Entomology for supporting my research from start to finish by sharing with me their skills, knowledge, and advice. I also wish to thank Rebecca Hapes of the Department of Entomology for always being willing and able to answer my questions about administrative forms and procedures. I am grateful to Darwin Anderson, Robert Bowling, Cesar Valencia, Gregory Sword, and everyone else from Texas A&M University and Texas A&M AgriLife Research who assisted with sorghum acquisition, cultivation, and management. Special thanks are due to William Rooney, who provided all germplasm of sorghum hybrid lines. I am indebted to the experienced workers at the Texas A&M University Farm, Somerville, TX, who miraculously retrieved my vehicle from the mud after a very rainy day of field sampling. v CONTRIBUTORS AND FUNDING SOURCES The thesis committee that supervised this research was composed of James Woolley (advisor and committee chair) and Michael Brewer (co-advisor and co-chair) of the Department of Entomology and William Rooney of the Department of Crop and Soil Sciences. Michael Brewer of the Department of Entomology ran the statistical analyses discussed in sections 2 and 3 using the field sampling data the student provided. Jewel Coffey, the technician of the Woolley lab, Department of Entomology, assisted with imaging and critical point drying of voucher specimens. Species identifications were provided in part by John Oswald and Ed Riley of the Department of Entomology, and Stephen Gaimari and Martin Hauser (California Department of Food and Agriculture). Research conducted at the Nueces County field site was enabled by Michael Brewer, Darwin Anderson, Robert Bowling, and other researchers, staff, and students working at the Texas A&M AgriLife Station in Corpus Christi, TX. The AgriLife crew were responsible for acquiring sorghum germplasm, arranging field plots, seed planting, irrigation, and all other aspects of crop cultivation in Corpus Christi. With guidance from the author, the crew also assisted with some of the weekly sampling, especially in 2016. Research at the Burleson County field site was enabled by Gregory Sword and Cesar Valencia of the Department of Entomology and William Rooney of the vi Department of Crop and Soil Sciences, who were responsible for sorghum acquisition and cultivation. Construction, installation, infestation, and removal of exclusion cages (see section 3) was made possible with the help of James Woolley, Michael Brewer, Jewel Coffey, Xanthe Shirley, and Leo Deleon. All other work conducted for this thesis was completed independently by the student. This includes, but is not limited to, all insect photographs appearing in Figs. 3-7 that are not otherwise credited. This graduate research was supported by an Excellence Fellowship FY 2016 awarded by the Texas A&M College of Agriculture & Life Sciences. This work was also funded in part by a USDA-NIFA-CPPM-ARDP grant awarded to Michael Brewer and James Woolley under grant number 2014- 700622528. David Ragsdale and the Texas A&M Department of Entomology provided additional funding support for off-campus field research in 2015. The contents of this document are solely the responsibility of the author and do not necessarily represent the official views of the USDA, the Department of Entomology, the Department of Agriculture & Life Sciences, or Texas A&M University. vii NOMENCLATURE Aphid = all uses of this word in the text and figures of this document refer specifically to the sugarcane aphid, Melanaphis sacchari, except where stated otherwise Alatae = winged (alate) adult aphids Apterae = wingless (apterous) adult aphids Mummy = the dried, discolored husk of an aphid that has been killed by a parasitoid wasp larva, which the wasp uses as a pupation chamber R; Res = a sorghum hybrid with partial resistance or tolerance to the sugarcane aphid S; Sus = a sorghum hybrid susceptible to the sugarcane aphid RxS = a sorghum hybrid obtained by crossing a maternal partially sugarcane-aphid- resistant inbred line with a paternal sugarcane-aphid-susceptible inbred line RxR = a sorghum hybrid obtained by crossing two partially sugarcane aphid resistant or tolerant inbred lines SxR = a sorghum hybrid obtained by crossing a maternal sugarcane-aphid- susceptible inbred line with a paternal partially sugarcane-aphid-resistant inbred line SxS = a sorghum hybrid obtained by crossing two sugarcane aphid susceptible inbred lines viii TABLE OF CONTENTS Page ABSTRACT .......................................................................................................... ii DEDICATION ....................................................................................................... iv ACKNOWLEDGEMENTS ..................................................................................... v CONTRIBUTORS AND FUNDING SOURCES .................................................. vi NOMENCLATURE............................................................................................... viii TABLE OF CONTENTS....................................................................................... ix LIST OF FIGURES................................................................................................ .xi LIST OF TABLES.................................................................................................. .xiv 1. INTRODUCTION AND LITERATURE REVIEW............................................... 1 2. SPECIES COMPOSITION AND SEASONAL ABUNDANCE OF THE NATURAL ENEMIES OF THE SUGARCANE APHID (Melanaphis sacchari) ON SORGHUM ........................................................... 8 2.1. Overview.................................................................................................. 8... 2.2. Introduction.............................................................................................. 9... 2.3. Methods................................................................................................... 14.. 2.3.1. Field Locations..................................................................................14.. 2.3.2. Field Plot Design............................................................................. 15.. 2.3.3. Data Collection................................................................................ 16.. 2.3.4. Laboratory Rearing of Natural Enemies.......................................... 18.. 2.3.5. Statistical
Load more

Recommended publications
  • A Survey of Aphid Parasitoids and Hyperparasitoids (Hymenoptera) on Six Crops in the Kurdistan Region of Iraq
    JHR 81: 9–21 (2021) doi: 10.3897/jhr.81.59784 RESEARCH ARTICLE https://jhr.pensoft.net A survey of aphid parasitoids and hyperparasitoids (Hymenoptera) on six crops in the Kurdistan Region of Iraq Srwa K. Bandyan1,2, Ralph S. Peters3, Nawzad B. Kadir2, Mar Ferrer-Suay4, Wolfgang H. Kirchner1 1 Ruhr University, Faculty of Biology and Biotechnology, Universitätsstraße 150, 44801, Bochum, Germany 2 Salahaddin University, Faculty of Agriculture, Department of Plant Protection, Karkuk street-Ronaki 235 n323, Erbil, Kurdistan Region, Iraq 3 Centre of Taxonomy and Evolutionary Research, Arthropoda Depart- ment, Zoological Research Museum Alexander Koenig, Arthropoda Department, 53113, Bonn, Germany 4 Universitat de Barcelona, Facultat de Biologia, Departament de Biologia Animal, Avda. Diagonal 645, 08028, Barcelona, Spain Corresponding author: Srwa K. Bandyan ([email protected]) Academic editor: J. Fernandez-Triana | Received 18 October 2020 | Accepted 27 January 2021 | Published 25 February 2021 http://zoobank.org/284290E0-6229-4F44-982B-4CC0E643B44A Citation: Bandyan SK, Peters RS, Kadir NB, Ferrer-Suay M, Kirchner WH (2021) A survey of aphid parasitoids and hyperparasitoids (Hymenoptera) on six crops in the Kurdistan Region of Iraq. Journal of Hymenoptera Research 81: 9–21. https://doi.org/10.3897/jhr.81.59784 Abstract In this study, we surveyed aphids and associated parasitoid wasps from six important crop species (wheat, sweet pepper, eggplant, broad bean, watermelon and sorghum), collected at 12 locations in the Kurdistan region of Iraq. A total of eight species of aphids were recorded which were parasitised by eleven species of primary parasitoids belonging to the families Braconidae and Aphelinidae. In addition, four species of hyperparasitoids (in families Encyrtidae, Figitidae, Pteromalidae and Signiphoridae) were recorded.
    [Show full text]
  • Insecticides - Development of Safer and More Effective Technologies
    INSECTICIDES - DEVELOPMENT OF SAFER AND MORE EFFECTIVE TECHNOLOGIES Edited by Stanislav Trdan Insecticides - Development of Safer and More Effective Technologies http://dx.doi.org/10.5772/3356 Edited by Stanislav Trdan Contributors Mahdi Banaee, Philip Koehler, Alexa Alexander, Francisco Sánchez-Bayo, Juliana Cristina Dos Santos, Ronald Zanetti Bonetti Filho, Denilson Ferrreira De Oliveira, Giovanna Gajo, Dejane Santos Alves, Stuart Reitz, Yulin Gao, Zhongren Lei, Christopher Fettig, Donald Grosman, A. Steven Munson, Nabil El-Wakeil, Nawal Gaafar, Ahmed Ahmed Sallam, Christa Volkmar, Elias Papadopoulos, Mauro Prato, Giuliana Giribaldi, Manuela Polimeni, Žiga Laznik, Stanislav Trdan, Shehata E. M. Shalaby, Gehan Abdou, Andreia Almeida, Francisco Amaral Villela, João Carlos Nunes, Geri Eduardo Meneghello, Adilson Jauer, Moacir Rossi Forim, Bruno Perlatti, Patrícia Luísa Bergo, Maria Fátima Da Silva, João Fernandes, Christian Nansen, Solange Maria De França, Mariana Breda, César Badji, José Vargas Oliveira, Gleberson Guillen Piccinin, Alan Augusto Donel, Alessandro Braccini, Gabriel Loli Bazo, Keila Regina Hossa Regina Hossa, Fernanda Brunetta Godinho Brunetta Godinho, Lilian Gomes De Moraes Dan, Maria Lourdes Aldana Madrid, Maria Isabel Silveira, Fabiola-Gabriela Zuno-Floriano, Guillermo Rodríguez-Olibarría, Patrick Kareru, Zachaeus Kipkorir Rotich, Esther Wamaitha Maina, Taema Imo Published by InTech Janeza Trdine 9, 51000 Rijeka, Croatia Copyright © 2013 InTech All chapters are Open Access distributed under the Creative Commons Attribution 3.0 license, which allows users to download, copy and build upon published articles even for commercial purposes, as long as the author and publisher are properly credited, which ensures maximum dissemination and a wider impact of our publications. After this work has been published by InTech, authors have the right to republish it, in whole or part, in any publication of which they are the author, and to make other personal use of the work.
    [Show full text]
  • Melanaphis Sacchari), in Grain Sorghum
    DEVELOPMENT OF A RESEARCH-BASED, USER- FRIENDLY, RAPID SCOUTING PROCEDURE FOR THE INVASIVE SUGARCANE APHID (MELANAPHIS SACCHARI), IN GRAIN SORGHUM By JESSICA CARRIE LINDENMAYER Bachelor of Science in Soil and Crop Sciences Bachelor of Science in Horticulture Colorado State University Fort Collins, Colorado 2013 Master of Science in Entomology and Plant Pathology Oklahoma State University Stillwater, Oklahoma 2015 Submitted to the Faculty of the Graduate College of the Oklahoma State University in partial fulfillment of the requirements for the Degree of DOCTOR OF PHILOSOPHY May, 2019 DEVELOPMENT OF A RESEARCH-BASED, USER- FRIENDLY, RAPID SCOUTING PROCEDURE FOR THE INVASIVE SUGARCANE APHID (MELANAPHIS SACCHARI), IN GRAIN SORGHUM Dissertation Approved: Tom A. Royer Dissertation Adviser Kristopher L. Giles Norman C. Elliott Mark E. Payton ii ACKNOWLEDGEMENTS I would like to thank my amazing committee and all my friends and family for their endless support during my graduate career. I would like to say a special thank you to my husband Brad for supporting me in every way one possibly can, I couldn’t have pursued this dream without you. I’d also like to thank my first child, due in a month. The thought of getting to be your mama pushed me to finish strong so you would be proud of me. Lastly, I want to thank my step father Jasper H. Davis III for showing me how to have a warrior’s spirit and to never give up on something, or someone you love. Your love, spirit, and motivational words will always be heard in my heart even while you’re gone.
    [Show full text]
  • University of Florida Thesis Or Dissertation Formatting Template
    EFFECTS OF INTERCROPPING AND BIOLOGICAL INSECTICIDES ON SUGARCANE APHID (HEMIPTERA: APHIDIDAE) INFESTATIONS ON SORGHUM, AND IDENTIFICATION OF NATURAL ENEMIES AND ALTERNATE HOSTS IN HAITI By WILFRID CALVIN A THESIS PRESENTED TO THE GRADUATE SCHOOL OF THE UNIVERSITY OF FLORIDA IN PARTIAL FULFILLMENT OF THE REQUIREMENTS FOR THE DEGREE OF MASTER OF SCIENCE UNIVERSITY OF FLORIDA 2019 © 2019 Wilfrid Calvin To Jehovah, Issa, Calissa, Amelise, and Mercilhome ACKNOWLEDGMENTS I thank God for always holding my hand through every step in my life. I am also grateful to my family for their unfailing support throughout my life. I would like to thank my lovely wife for her undying assistance and constant encouragement during my study period. Special thanks to my adorable daughter who endured with love such a long period of time away from daddy to make this achievement possible. I thank Dr. Julien Beuzelin, my committee chair, for all his guidance and support during my master’s study. My committee members, Drs. Oscar Liburd and Marc Branham, have also provided useful advice and support for which I am so thankful. I am also thankful to Mr. Ludger Jean Simon for his support toward the success of the experiments conducted in Haiti. I would like to thank Dr. Elijah Talamas for his help identifying insect samples from Haiti. I thank Donna Larsen for providing technical assistance in all experiments conducted at the UF/IFAS Everglades Research and Education Center (EREC) and for all the help to make my stay in Belle Glade successful. I am also thankful to Erik Roldán for all his help during my master’s program.
    [Show full text]
  • Advances in Understanding the Ecology of Invasive Crop Insect
    Invasive insect pests and IPM Invasive insect pests and IPM Advances in understanding the ecology of invasive crop insect pests and their impact on IPM Robert Venette, USDA Forest Service, USA; and Amy Morey, University of Minnesota, USA 1 Introduction 2 Ecology of invasive species 3 Invasive species management strategies 4 Relationship of invasive species management to IPM 5 Future trends 6 Acknowledgements 7 Where to look for further information 8 References 1 Introduction Invasive species remain one of the greatest threats to the productivity and sustainability of agriculture, forests, prairies and wetlands (Lovett et al., 2016; Paini et al., 2016). By definition these species are alien (i.e. non-native) to some ecosystems in which they now occur. In their adventive geographic range, they lack co-evolutionary history with the native flora and fauna. As a result, hosts are bereft of specific resistance mechanisms, and no specialized co-evolved natural enemies occur to regulate pest population growth. Alien species become invasive when they cause, or are likely to cause, economic, ecological or social (including human health) harms. Indeed, most insect pests of agriculture and forestry are non-native and efforts to control them dominate applied entomology (Liebhold and Griffin, 2016). The most recent update to the National Road Map for Integrated Pest Management (IPM) places a special emphasis on invasive species (OPMP, 2018). Previous experiences with insect invasions helped to shape modern awareness of the challenges posed by invasive species. For example, invasion by the North American grape phylloxera, Viteus vitifoliae, devastated European vineyards and inspired European nations to enact some of the first quarantine regulations globally to prevent the introduction of insect pests.
    [Show full text]
  • Teaching Eighteenth-Century French Literature: the Good, the Bad and the Ugly
    Eighteenth-Century Modernities: Present Contributions and Potential Future Projects from EC/ASECS (The 2014 EC/ASECS Presidential Address) by Christine Clark-Evans It never occurred to me in my research, writing, and musings that there would be two hit, cable television programs centered in space, time, and mythic cultural metanarrative about 18th-century America, focusing on the 1760s through the 1770s, before the U.S. became the U.S. One program, Sleepy Hollow on the FOX channel (not the 1999 Johnny Depp film) represents a pre- Revolutionary supernatural war drama in which the characters have 21st-century social, moral, and family crises. Added for good measure to several threads very similar to Washington Irving’s “Legend of Sleepy Hollow” story are a ferocious headless horseman, representing all that is evil in the form of a grotesque decapitated man-demon, who is determined to destroy the tall, handsome, newly reawakened Rip-Van-Winkle-like Ichabod Crane and the lethal, FBI-trained, diminutive beauty Lt. Abigail Mills. These last two are soldiers for the politically and spiritually righteous in both worlds, who themselves are fatefully inseparable as the only witnesses/defenders against apocalyptic doom. While the main characters in Sleepy Hollow on television act out their protracted, violent conflict against natural and supernatural forces, they also have their own high production-level, R & B-laced, online music video entitled “Ghost.” The throaty feminine voice rocks back and forth to accompany the deft montage of dramatic and frightening scenes of these talented, beautiful men and these talented, beautiful women, who use as their weapons American patriotism, religious faith, science, and wizardry.
    [Show full text]
  • A Contribution to the Aphid Fauna of Greece
    Bulletin of Insectology 60 (1): 31-38, 2007 ISSN 1721-8861 A contribution to the aphid fauna of Greece 1,5 2 1,6 3 John A. TSITSIPIS , Nikos I. KATIS , John T. MARGARITOPOULOS , Dionyssios P. LYKOURESSIS , 4 1,7 1 3 Apostolos D. AVGELIS , Ioanna GARGALIANOU , Kostas D. ZARPAS , Dionyssios Ch. PERDIKIS , 2 Aristides PAPAPANAYOTOU 1Laboratory of Entomology and Agricultural Zoology, Department of Agriculture Crop Production and Rural Environment, University of Thessaly, Nea Ionia, Magnesia, Greece 2Laboratory of Plant Pathology, Department of Agriculture, Aristotle University of Thessaloniki, Greece 3Laboratory of Agricultural Zoology and Entomology, Agricultural University of Athens, Greece 4Plant Virology Laboratory, Plant Protection Institute of Heraklion, National Agricultural Research Foundation (N.AG.RE.F.), Heraklion, Crete, Greece 5Present address: Amfikleia, Fthiotida, Greece 6Present address: Institute of Technology and Management of Agricultural Ecosystems, Center for Research and Technology, Technology Park of Thessaly, Volos, Magnesia, Greece 7Present address: Department of Biology-Biotechnology, University of Thessaly, Larissa, Greece Abstract In the present study a list of the aphid species recorded in Greece is provided. The list includes records before 1992, which have been published in previous papers, as well as data from an almost ten-year survey using Rothamsted suction traps and Moericke traps. The recorded aphidofauna consisted of 301 species. The family Aphididae is represented by 13 subfamilies and 120 genera (300 species), while only one genus (1 species) belongs to Phylloxeridae. The aphid fauna is dominated by the subfamily Aphidi- nae (57.1 and 68.4 % of the total number of genera and species, respectively), especially the tribe Macrosiphini, and to a lesser extent the subfamily Eriosomatinae (12.6 and 8.3 % of the total number of genera and species, respectively).
    [Show full text]
  • The Many Panics of 1837 People, Politics, and the Creation of a Transatlantic Financial Crisis
    The Many Panics of 1837 People, Politics, and the Creation of a Transatlantic Financial Crisis In the spring of 1837, people panicked as financial and economic uncer- tainty spread within and between New York, New Orleans, and London. Although the period of panic would dramatically influence political, cultural, and social history, those who panicked sought to erase from history their experiences of one of America’s worst early financial crises. The Many Panics of 1837 reconstructs the period between March and May 1837 in order to make arguments about the national boundaries of history, the role of information in the economy, the personal and local nature of national and international events, the origins and dissemination of economic ideas, and most importantly, what actually happened in 1837. This riveting transatlantic cultural history, based on archival research on two continents, reveals how people transformed their experiences of financial crisis into the “Panic of 1837,” a single event that would serve as a turning point in American history and an early inspiration for business cycle theory. Jessica M. Lepler is an assistant professor of history at the University of New Hampshire. The Society of American Historians awarded her Brandeis University doctoral dissertation, “1837: Anatomy of a Panic,” the 2008 Allan Nevins Prize. She has been the recipient of a Hench Post-Dissertation Fellowship from the American Antiquarian Society, a Dissertation Fellowship from the Library Company of Philadelphia’s Program in Early American Economy and Society, a John E. Rovensky Dissertation Fellowship in Business History, and a Jacob K. Javits Fellowship from the U.S.
    [Show full text]
  • Implementation and Status of Biological Control of the Hemlock Woolly Adelgid
    Forest Health Technology Enterprise Team TECHNOLOGY TRANSFER Biological Control IMPLEMENTATION AND STAtuS OF BIOLOGICAL CONTRol OF THE HEMLOCK WOOLLY AdelgId United States Forest Forest Health FHTET-2011-04 Department Service Technology December 2011 of Agriculture Enterprise Team Forest Health Technology Enterprise Team TECHNOLOGY TRANSFER Biological Control IMPLEMENTATION AND STAtuS OF BIOLOGICAL CONTRol OF THE HEMLOCK WOOLLY AdelgId United States Forest Forest Health FHTET-2011-04 Department Service Technology December 2011 of Agriculture Enterprise Team IMPLEMENTATION AND STATUS OF BIOLOGICAL CONTROL OF THE HEMLOCK WOOLLY ADELGID The Forest Health Technology Enterprise Team (FHTET) was created in 1995 by the Deputy Chief for State and Private Forestry, Forest Service, U.S. Department of Agriculture, to develop and deliver technologies to protect and improve the health of American forests. This book was published by FHTET as part of the technology transfer series. http://www.fs.fed.us/foresthealth/technology/ On the cover: Center photo: Hemlock woolly adelgid white woolly masses on a hemlock branch (USDA Forest Service, Karen Felton) Top right: Sasajiscymnus tsugae predatory beetle (USDA Forest Service, Lynn Jones); Middle right: Collecting and checking hemlock branch samples for Laricobius nigrinus predatory beetle larvae (USDA Forest Service, Brad Onken); Bottom center: Collecting Laricobius nigrinus predatory beetles in Idaho (USDA Forest Service, Brad Onken); Middle left: Releasing Laricobius nigrinus predatory beetles (USDA Forest Service, Brad Onken); Top left: Laricobius nigrinus predatory beetle (USDA Forest Service, Lynn Jones) For additional copies of this publication, contact: Brad Onken Richard Reardon U.S. Forest Service U.S. Forest Service 180 Canfi eld Street 180 Canfi eld Street Morgantown, WV 26505 Morgantown, WV 26505 (304) 285-1546 (304) 285-1566 [email protected] [email protected] The entire publication is available online at http://www.fs.fed.us/na/morgantown/fhp/hwa The U.S.
    [Show full text]
  • Temperature Dependent Development of Sugarcane Aphids
    University of Nebraska - Lincoln DigitalCommons@University of Nebraska - Lincoln Faculty Publications: Department of Entomology Entomology, Department of 2019 Temperature Dependent Development of Sugarcane Aphids Melanaphis Sacchari, (Hemiptera: Aphididae) on Three Different Host Plants with Estimates of the Lower and Upper Threshold for Fecundity Michael A. De Souza J. Scott Armstrong W. Wyatt Hoback Phillip G. Mulder Sulochana Paudyal See next page for additional authors Follow this and additional works at: https://digitalcommons.unl.edu/entomologyfacpub Part of the Entomology Commons This Article is brought to you for free and open access by the Entomology, Department of at DigitalCommons@University of Nebraska - Lincoln. It has been accepted for inclusion in Faculty Publications: Department of Entomology by an authorized administrator of DigitalCommons@University of Nebraska - Lincoln. Authors Michael A. De Souza, J. Scott Armstrong, W. Wyatt Hoback, Phillip G. Mulder, Sulochana Paudyal, John E. Foster, Mark E. Payton, and Josephine Akosa Current Trends in Entomology and Zoological Studies Souza MA, et al. Curr Trends Entomol Zool Stds 2: 1011. Research Article DOI:10.29011/CTEZS-1011.001011 Temperature Dependent Development of Sugarcane Aphids Melana- phis Sacchari, (Hemiptera: Aphididae) on Three Different Host Plants with Estimates of the Lower and Upper Threshold for Fecundity Misael A De Souza1, J Scott Armstrong2*, W Wyatt Hoback1, Phillip G Mulder1, Sulochana Paudyal1 , John E Foster3, Mark E Payton4, Josephine Akosa5 1Department
    [Show full text]
  • Mountaineering Ventures
    70fcvSs )UNTAINEERING Presented to the UNIVERSITY OF TORONTO LIBRARY by the ONTARIO LEGISLATIVE LIBRARY 1980 v Digitized by the Internet Archive in 2010 with funding from University of Toronto http://www.archive.org/details/mountaineeringveOObens 1 £1. =3 ^ '3 Kg V- * g-a 1 O o « IV* ^ MOUNTAINEERING VENTURES BY CLAUDE E. BENSON Ltd. LONDON : T. C. & E. C. JACK, 35 & 36 PATERNOSTER ROW, E.C. AND EDINBURGH PREFATORY NOTE This book of Mountaineering Ventures is written primarily not for the man of the peaks, but for the man of the level pavement. Certain technicalities and commonplaces of the sport have therefore been explained not once, but once and again as they occur in the various chapters. The intent is that any reader who may elect to cull the chapters as he lists may not find himself unpleasantly confronted with unfamiliar phraseology whereof there is no elucidation save through the exasperating medium of a glossary or a cross-reference. It must be noted that the percentage of fatal accidents recorded in the following pages far exceeds the actual average in proportion to ascents made, which indeed can only be reckoned in many places of decimals. The explanation is that this volume treats not of regular routes, tariffed and catalogued, but of Ventures—an entirely different matter. Were it within his powers, the compiler would wish ade- quately to express his thanks to the many kind friends who have assisted him with loans of books, photographs, good advice, and, more than all, by encouraging countenance. Failing this, he must resort to the miserably insufficient re- source of cataloguing their names alphabetically.
    [Show full text]
  • Checklist of British and Irish Hymenoptera - Chalcidoidea and Mymarommatoidea
    Biodiversity Data Journal 4: e8013 doi: 10.3897/BDJ.4.e8013 Taxonomic Paper Checklist of British and Irish Hymenoptera - Chalcidoidea and Mymarommatoidea Natalie Dale-Skey‡, Richard R. Askew§‡, John S. Noyes , Laurence Livermore‡, Gavin R. Broad | ‡ The Natural History Museum, London, United Kingdom § private address, France, France | The Natural History Museum, London, London, United Kingdom Corresponding author: Gavin R. Broad ([email protected]) Academic editor: Pavel Stoev Received: 02 Feb 2016 | Accepted: 05 May 2016 | Published: 06 Jun 2016 Citation: Dale-Skey N, Askew R, Noyes J, Livermore L, Broad G (2016) Checklist of British and Irish Hymenoptera - Chalcidoidea and Mymarommatoidea. Biodiversity Data Journal 4: e8013. doi: 10.3897/ BDJ.4.e8013 Abstract Background A revised checklist of the British and Irish Chalcidoidea and Mymarommatoidea substantially updates the previous comprehensive checklist, dating from 1978. Country level data (i.e. occurrence in England, Scotland, Wales, Ireland and the Isle of Man) is reported where known. New information A total of 1754 British and Irish Chalcidoidea species represents a 22% increase on the number of British species known in 1978. Keywords Chalcidoidea, Mymarommatoidea, fauna. © Dale-Skey N et al. This is an open access article distributed under the terms of the Creative Commons Attribution License (CC BY 4.0), which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited. 2 Dale-Skey N et al. Introduction This paper continues the series of checklists of the Hymenoptera of Britain and Ireland, starting with Broad and Livermore (2014a), Broad and Livermore (2014b) and Liston et al.
    [Show full text]