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Research Article Ecological Observations of Native Geocoris Pallens and G
Hindawi Publishing Corporation Psyche Volume 2013, Article ID 465108, 11 pages http://dx.doi.org/10.1155/2013/465108 Research Article Ecological Observations of Native Geocoris pallens and G. punctipes Populations in the Great Basin Desert of Southwestern Utah Meredith C. Schuman, Danny Kessler, and Ian T. Baldwin Department of Molecular Ecology, Max Planck Institute for Chemical Ecology, Hans-Knoll-Straße¨ 8, 07745 Jena, Germany Correspondence should be addressed to Ian T. Baldwin; [email protected] Received 5 November 2012; Accepted 16 April 2013 Academic Editor: David G. James Copyright © 2013 Meredith C. Schuman et al. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. Big-eyed bugs (Geocoris spp. Fallen,´ Hemiptera: Lygaeidae) are ubiquitous, omnivorous insect predators whose plant feeding behavior raises the question of whether they benefit or harm plants. However, several studies have investigated both the potential of Geocoris spp. to serve as biological control agents in agriculture and their importance as agents of plant indirect defense in nature. These studies have demonstrated that Geocoris spp. effectively reduce herbivore populations and increase plant yield. Previous work has also indicated that Geocoris spp. respond to visual and olfactory cues when foraging and choosing their prey and that associative learning of prey and plant cues informs their foraging strategies. For these reasons, Geocoris spp. have become models for the study of tritrophic plant-herbivore-predator interactions. Here, we present detailed images and ecological observations of G. pallens Stal˚ and G. -
Squash Bug, Anasa Tristis (Degeer)1
Archival copy: for current recommendations see http://edis.ifas.ufl.edu or your local extension office. EENY-077 Squash Bug, Anasa tristis (DeGeer)1 John L. Capinera2 Introduction Egg The squash bug, Anasa tristis, attacks cucurbits Eggs are deposited on the lower surface of (squash and relatives) throughout Central America, leaves, though occasionally they occur on the upper the United States, and southern Canada. Several surface or on leaf petioles. The elliptical egg is related species in the same genus coexist with squash somewhat flattened and bronze in color. The average bug over most of its range, feeding on the same plants egg length is about 1.5 mm and the width about 1.1 but causing much less injury. mm. Females deposit about 20 eggs in each egg cluster. Eggs may be tightly clustered (Figure 1) or Life Cycle spread a considerable distance apart, but an equidistant spacing arrangement is commonly The complete life cycle of squash bug commonly observed. Duration of the egg stage is about seven to requires six to eight weeks. Squash bugs have one nine days. generation per year in northern climates and two to three generations per year in warmer regions. In Nymph intermediate latitudes the early-emerging adults from the first generation produce a second generation There are five nymphal instars. The nymphal whereas the late-emerging adults go into diapause. stage requires about 33 days for complete Both sexes overwinter as adults. The preferred development. The nymph is about 2.5 mm in length overwintering site seems to be in cucurbit fields when it hatches, and light green in color. -
A Comparative Study of Two Seed Bugs, Geocoris
A COMPARATIVE STUDY OF TWO SEED BUGS, GEOCORIS BULLATUS (SAY) AND G. DISCOPTERUS STAL (HEMIPTERA: LYGAEIDAE) IN THE YUKON. By JENNIFER J. ROBINSON B.Sc. Trent University, 1980 A THESIS SUBMITTED IN PARTIAL FULFILLMENT OF THE REQUIREMENTS FOR THE DEGREE OF MASTER OF SCIENCE in THE FACULTY OF GRADUATE STUDIES DEPARTMENT OF ZOOLOGY We accept this thesis as conforming te trie required standard June, 1985 (c) Jennifer J. Robinson, 1985 In presenting this thesis in partial fulfilment of the requirements for an advanced degree at the University of British Columbia, I agree that the Library shall make it freely available for reference and study. I further agree that permission for extensive copying of this thesis for scholarly purposes may be granted by the head of my department or by his or her representatives. It is understood that copying or publication of this thesis for financial gain shall not be allowed without my written permission. Department of The University of British Columbia 1956 Main Mall Vancouver, Canada V6T 1Y3 )E-6 C3/81) Abstract Geocoris bullatus (Say 1831), (Henriptera: Lygaeidae) has been collected and studied across North America but the present work is the o first detailed study of western North American CL discopterus Stal 1874. In fact, it has been claimed that 6^. discopterus is solely a species of the east. As the two species are taxonomically difficult to separate, when they were apparently discovered together at several localities in the southwestern Yukon, a detailed investigation of their systematics and distribution seemed necessary. Species status of Yukon Q. bullatus and iG. -
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. -
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. -
Jordan Beans RA RMO Dir
Importation of Fresh Beans (Phaseolus vulgaris L.), Shelled or in Pods, from Jordan into the Continental United States A Qualitative, Pathway-Initiated Risk Assessment February 14, 2011 Version 2 Agency Contact: Plant Epidemiology and Risk Analysis Laboratory Center for Plant Health Science and Technology United States Department of Agriculture Animal and Plant Health Inspection Service Plant Protection and Quarantine 1730 Varsity Drive, Suite 300 Raleigh, NC 27606 Pest Risk Assessment for Beans from Jordan Executive Summary In this risk assessment we examined the risks associated with the importation of fresh beans (Phaseolus vulgaris L.), in pods (French, green, snap, and string beans) or shelled, from the Kingdom of Jordan into the continental United States. We developed a list of pests associated with beans (in any country) that occur in Jordan on any host based on scientific literature, previous commodity risk assessments, records of intercepted pests at ports-of-entry, and information from experts on bean production. This is a qualitative risk assessment, as we express estimates of risk in descriptive terms (High, Medium, and Low) rather than numerically in probabilities or frequencies. We identified seven quarantine pests likely to follow the pathway of introduction. We estimated Consequences of Introduction by assessing five elements that reflect the biology and ecology of the pests: climate-host interaction, host range, dispersal potential, economic impact, and environmental impact. We estimated Likelihood of Introduction values by considering both the quantity of the commodity imported annually and the potential for pest introduction and establishment. We summed the Consequences of Introduction and Likelihood of Introduction values to estimate overall Pest Risk Potentials, which describe risk in the absence of mitigation. -
Coleoptera) (Excluding Anthribidae
A FAUNAL SURVEY AND ZOOGEOGRAPHIC ANALYSIS OF THE CURCULIONOIDEA (COLEOPTERA) (EXCLUDING ANTHRIBIDAE, PLATPODINAE. AND SCOLYTINAE) OF THE LOWER RIO GRANDE VALLEY OF TEXAS A Thesis TAMI ANNE CARLOW Submitted to the Office of Graduate Studies of Texas A&M University in partial fulfillment of the requirements for the degree of MASTER OF SCIENCE August 1997 Major Subject; Entomology A FAUNAL SURVEY AND ZOOGEOGRAPHIC ANALYSIS OF THE CURCVLIONOIDEA (COLEOPTERA) (EXCLUDING ANTHRIBIDAE, PLATYPODINAE. AND SCOLYTINAE) OF THE LOWER RIO GRANDE VALLEY OF TEXAS A Thesis by TAMI ANNE CARLOW Submitted to Texas AgcM University in partial fulltllment of the requirements for the degree of MASTER OF SCIENCE Approved as to style and content by: Horace R. Burke (Chair of Committee) James B. Woolley ay, Frisbie (Member) (Head of Department) Gilbert L. Schroeter (Member) August 1997 Major Subject: Entomology A Faunal Survey and Zoogeographic Analysis of the Curculionoidea (Coleoptera) (Excluding Anthribidae, Platypodinae, and Scolytinae) of the Lower Rio Grande Valley of Texas. (August 1997) Tami Anne Carlow. B.S. , Cornell University Chair of Advisory Committee: Dr. Horace R. Burke An annotated list of the Curculionoidea (Coleoptem) (excluding Anthribidae, Platypodinae, and Scolytinae) is presented for the Lower Rio Grande Valley (LRGV) of Texas. The list includes species that occur in Cameron, Hidalgo, Starr, and Wigacy counties. Each of the 23S species in 97 genera is tteated according to its geographical range. Lower Rio Grande distribution, seasonal activity, plant associations, and biology. The taxonomic atTangement follows O' Brien &, Wibmer (I og2). A table of the species occuning in patxicular areas of the Lower Rio Grande Valley, such as the Boca Chica Beach area, the Sabal Palm Grove Sanctuary, Bentsen-Rio Grande State Park, and the Falcon Dam area is included. -
Fossil History of Curculionoidea (Coleoptera) from the Paleogene
geosciences Review Fossil History of Curculionoidea (Coleoptera) from the Paleogene Andrei A. Legalov 1,2 1 Institute of Systematics and Ecology of Animals, Siberian Branch, Russian Academy of Sciences, Ulitsa Frunze, 11, 630091 Novosibirsk, Novosibirsk Oblast, Russia; [email protected]; Tel.: +7-9139471413 2 Biological Institute, Tomsk State University, Lenin Ave, 36, 634050 Tomsk, Tomsk Oblast, Russia Received: 23 June 2020; Accepted: 4 September 2020; Published: 6 September 2020 Abstract: Currently, some 564 species of Curculionoidea from nine families (Nemonychidae—4, Anthribidae—33, Ithyceridae—3, Belidae—9, Rhynchitidae—41, Attelabidae—3, Brentidae—47, Curculionidae—384, Platypodidae—2, Scolytidae—37) are known from the Paleogene. Twenty-seven species are found in the Paleocene, 442 in the Eocene and 94 in the Oligocene. The greatest diversity of Curculionoidea is described from the Eocene of Europe and North America. The richest faunas are known from Eocene localities, Florissant (177 species), Baltic amber (124 species) and Green River formation (75 species). The family Curculionidae dominates in all Paleogene localities. Weevil species associated with herbaceous vegetation are present in most localities since the middle Paleocene. A list of Curculionoidea species and their distribution by location is presented. Keywords: Coleoptera; Curculionoidea; fossil weevil; faunal structure; Paleocene; Eocene; Oligocene 1. Introduction Research into the biodiversity of the past is very important for understanding the development of life on our planet. Insects are one of the Main components of both extinct and recent ecosystems. Coleoptera occupied a special place in the terrestrial animal biotas of the Mesozoic and Cenozoics, as they are characterized by not only great diversity but also by their ecological specialization. -
Squash Bug, Anasa Tristis (Degeer)
CHARACTERIZING THE OVERWINTERING AND El\ffiRGENCE BERAVIORS OF THE ADULT SQUASH BUG, ANASA TRISTIS (DEGEER) By JESSE ALAN EIBEN Bachelor of Science in Psychobiology Albright College Reading, PA 2001 Submitted to the Faculty of the Graduate College of Oklahoma State University in partial fulfillment of the requirements for the Degree of MASTER OF SCIENCE December, 2004 CHARACTERIZING THE OVERWINTERING AND EMERGENCE BEHAVIORS OF THE ADULT SQUASH BUG, ANASA TRISTIS (DEGEER) Thesis Approved: I Thesis Advisor 7Dean of the Graduate College ii PREFACE Research was conducted from 2002 to 2004 at the Wes Watkins Agricultural Research and Extension Center (WWAREC) in Lane, Oklahoma to illuminate the specific behaviors of adult overwintering squash bugs during the winter hibernating period and during their spring emergence. These studies were conducted in the field with the adult squash bug, Anasa tristis (Degeer), its host plant the yellow crook-necked squash, Cucurbita pepo 'lemondrop', and its overwintering habitats consisting of many sheltering objects found in the ecological landscape. The first chapter is introductory and the last two chapters present results as complete manuscripts to be submitted to scientific journals following manuscript guidelines established by the Entomological Society of America. I would like to acknowledge the following people for valuable advice and assistance throughout my research endeavors at OSU. My sincerest thanks go to my major advisor Dr. Jonathan Edelson. He has given me this wonderful opportunity and the freedom to pursue a project that was both wide in berth and exploratory in nature. The other members of my graduate committee, Dr. Kris Giles, Dr. Thomas Phillips, and Dr. -
Geocoris Punctipes</Emphasis>
EntomoL exp. appl. 64: 195-202, 1992. 1992 Kluwer Academic Pubhshers. Printed & Belgium. 195 Geocoris punctipes as a predator of Bemisia tabaci: a laboratory evaluation A. C Cohen I & D. N. Byrne2 1 U.S. Department of Agriculture, Agr&ultural Research Service Western Cotton Research Laboratory, 4135 E. Broadway Rd., Phoenix, AZ 85040, USA; 2Department of Entomology, University of Arizona, Tucson, AZ 85721, USA Accepted: February 28, 1989 Key words: Geocoris, Bemisia, predator, handling time Abstract Geocoris punctipes (Say), a predaceous lygaeid not previously documented as a whitefly predator, was tested in the laboratory as a natural enemy of the sweet potato whitefly, Bemisia tabaci (Genn.). Its stalking behavior with whiteflies as prey was similar to that observed with aphids. A previously unob- served behavior was noted that involves the predators using salivary secretions to fasten the wings of prey to various surfaces, allowing labial probing and feeding. Prey consumption as a function of prey number appeared to follow the pattern of the Holling type II functional response. Handling time per prey item ranged from about 180 to 240 seconds. No changes were observed in handling time devoted to earlier versus later catches. Nutritional quality of whiteflies was measured using crude protein, lipids and carbohydrates as criteria. Performance, in terms of predator behavior, total daily handling time, func- tional response, energy budget and nutritional quality all support the hypothesis that G. punctipes is a promising candidate for biological control of sweet potato whiteflies. Introduction with photosynthesis (Perkins, 1983). These facts indicate a great need for effective control strate- The sweet potato whitefly, Bemisia tabaci (Genn.) gies. -
What's "Up"? a Critical Loolc at the Basic Terms of Canopy Biology^
BIOTROPICA 32(4a): 569-596 2000 REVIEW AND VIEWPOINT What's "Up"? A Critical Loolc at the Basic Terms of Canopy Biology^ Mark W. Moffett Museum of Vertebrate Zoology, 3101 Valley Life Sciences, University of California, Berkeley, California 94720, U.S.A. ABSTRACT The lack of recent critiques about terminology has led to the frequent misuse or confusingly varied use of the words that are more or less specific to the field of terrestrial canopy biology. I provide definitions for ca 170 terms and subterms, with translations into four languages. Rather than limit coverage to tree crowns, I define canopy biology as the study of life within any aboveground parts of all plant communities, temperate and tropical. This broadened perspective enables ecologists to consider the entire range of challenges faced by organisms living in aboveground plant life, from just above the rhizosphere to the outer limits of plant growth into the atmosphere. Further, this redefinition may reduce the potential for anthropocentric biases in interpreting life on trees or other plants; encourage the use of alternative ecosystems for hypotheses that may be difficult to address in treetops; and promote more general conceptual thinking about life on vegetation, most notably the importance of scaling in ecology. Among the salient points in terminology: the concept of "stratification" has been criticized in part because strata have been defined many ways, but a flexible application of the word is central to its utility; the source of nutrients is pivotal in distinguishing -
Anasa Tristis) Can Be a Serious Insect Pest for Organic Summer Squash Growers
EFFECTS OF COVER CROPS AND ORGANIC INSECTICIDES ON SQUASH BUG (ANASA TRISTIS) POPULATIONS by LINDSAY NICHOLE DAVIES (Under the Direction of David Berle) ABSTRACT Squash bugs (Anasa tristis) can be a serious insect pest for organic summer squash growers. The purpose of this research was to evaluate two methods to control A. tristis populations. The first experiment involved planting cover crops adjacent to summer squash in an effort to attract natural enemies to keep A. tristis populations in check. Natural enemies were attracted to the plots, but did not significantly reduce A. tristis populations. This may have been due to other food sources in the plots, such as pollen, nectar, and aphids. Also, summer squash yields were negatively affected by the cover crop treatments. The second experiment involved evaluating the efficacy of organic insecticides on A. tristis adults and nymphs. Results of this study showed pyrethrin-based sprays are best for controlling A. tristis. INDEX WORDS: Summer squash, Diversified planting, Natural enemies, Pesticides, Organic agriculture, Sustainable agriculture, Biological control EFFECTS OF COVER CROPS AND ORGANIC INSECTICIDES ON SQUASH BUG (ANASA TRISTIS) POPULATIONS by LINDSAY NICHOLE DAVIES B.S., Indiana University, 2011 A Thesis Submitted to the Graduate Faculty of The University of Georgia in Partial Fulfillment of the Requirements for the Degree MASTER OF SCIENCE ATHENS, GEORGIA 2016 © 2016 Lindsay Nichole Davies All Rights Reserved EFFECTS OF COVER CROPS AND ORGANIC INSECTICIDES ON SQUASH BUG (ANASA TRISTIS) POPULATIONS by LINDSAY NICHOLE DAVIES Major Professor: David Berle Committee: Paul Guillebeau Elizabeth Little Electronic Version Approved: Suzanne Barbour Dean of the Graduate School The University of Georgia May 2016 DEDICATION This thesis is dedicated to my friends, family, and fiancé.