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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. -
Insecticideinduced Hormesis and Arthropod Pest Management
Review Received: 31 August 2013 Revised: 7 October 2013 Accepted article published: 23 October 2013 Published online in Wiley Online Library: 2 December 2013 (wileyonlinelibrary.com) DOI 10.1002/ps.3669 Insecticide-induced hormesis and arthropod pest management Raul Narciso C Guedesa∗ and G Christopher Cutlerb Abstract Ecological backlashes such as insecticide resistance, resurgence and secondary pest outbreaks are frequent problems associated with insecticide use against arthropod pest species. The last two have been particularly important in sparking interest in the phenomenon of insecticide-induced hormesis within entomology and acarology. Hormesis describes a biphasic dose–response relationship that is characterized by a reversal of response between low and high doses of a stressor (e.g. insecticides). Although the concept of insecticide-induced hormesis often does not receive sufficient attention, or has been subject to semantic confusion, it has been reported in many arthropod pest species and natural enemies, and has been linked to pest outbreaks and potential problems with insecticide resistance. The study of hormesis remains largely neglected in entomology and acarology. Here, we examined the concept of insecticide-induced hormesis in arthropods, its functional basis and potential fitness consequences, and its importance in arthropod pest management and other areas. c 2013 Society of Chemical Industry Keywords: biphasic concentration–response; hormoligosis; insecticidal stress; insecticide ecotoxicology; pesticide-mediated homeostatic regulation; sublethal effects 1 HORMESIS: ANCIENT ADAGES, OLD LAWS group recognized the general nature of the phenomenon in a suc- AND CURRENT THEORY cession of meta-analyses.9–13 They suggested that the hormetic Friedrich Nietzsche in his Twilight of the Idols (1888) expressed dose–response model is more common in toxicology than the threshold model (Fig. -
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. -
Venoms of Heteropteran Insects: a Treasure Trove of Diverse Pharmacological Toolkits
Review Venoms of Heteropteran Insects: A Treasure Trove of Diverse Pharmacological Toolkits Andrew A. Walker 1,*, Christiane Weirauch 2, Bryan G. Fry 3 and Glenn F. King 1 Received: 21 December 2015; Accepted: 26 January 2016; Published: 12 February 2016 Academic Editor: Jan Tytgat 1 Institute for Molecular Biosciences, The University of Queensland, St Lucia, QLD 4072, Australia; [email protected] (G.F.K.) 2 Department of Entomology, University of California, Riverside, CA 92521, USA; [email protected] (C.W.) 3 School of Biological Sciences, The University of Queensland, St Lucia, QLD 4072, Australia; [email protected] (B.G.F.) * Correspondence: [email protected]; Tel.: +61-7-3346-2011 Abstract: The piercing-sucking mouthparts of the true bugs (Insecta: Hemiptera: Heteroptera) have allowed diversification from a plant-feeding ancestor into a wide range of trophic strategies that include predation and blood-feeding. Crucial to the success of each of these strategies is the injection of venom. Here we review the current state of knowledge with regard to heteropteran venoms. Predaceous species produce venoms that induce rapid paralysis and liquefaction. These venoms are powerfully insecticidal, and may cause paralysis or death when injected into vertebrates. Disulfide- rich peptides, bioactive phospholipids, small molecules such as N,N-dimethylaniline and 1,2,5- trithiepane, and toxic enzymes such as phospholipase A2, have been reported in predatory venoms. However, the detailed composition and molecular targets of predatory venoms are largely unknown. In contrast, recent research into blood-feeding heteropterans has revealed the structure and function of many protein and non-protein components that facilitate acquisition of blood meals. -
Kobor Peter Dissertation.Pdf
1 PANNON EGYETEM GEORGIKON KAR KESZTHELY Festetics Doktori Iskola Iskolavezető: Dr. Anda Angéla, DSc. Állattudományi Tanszék DOKTORI (PH.D.) ÉRTEKEZÉS INVESTIGATIONS ON THE TAXONOMY AND SYSTEMATICS OF BIG-EYED BUGS (HETEROPTERA: LYGAEOIDEA: GEOCORIDAE) Témavezető: Dr. habil. Kondorosy Előd CSc, egyetemi tanár Készítette: Kóbor Péter Keszthely, 2020 2 INVESTIGATIONS ON THE TAXONOMY AND SYSTEMATICS OF BIG-EYED BUGS (HETEROPTERA: LYGAEOIDEA: GEOCORIDAE) Értekezés doktori (PhD) fokozat elnyerése érdekében Írta: Kóbor Péter Készült a Pannon Egyetem Festetics Doktori Iskola keretében Témavezető: Dr. Kondorosy Előd Elfogadásra javaslom (igen / nem) ……………………………….(aláírás) A jelölt a doktori szigorlaton ........%-ot ért el, Az értekezést bírálóként elfogadásra javaslom: Bíráló neve: …........................ …................. igen /nem ………………………. (aláírás) Bíráló neve: …........................ ….................) igen /nem ………………………. (aláírás) ***Bíráló neve: …........................ ….................) igen /nem ………………………. (aláírás) A jelölt az értekezés nyilvános vitáján …..........%-ot ért el. A doktori (PhD) oklevél minősítése…................................. ………………………… Az EDHT elnöke 3 TABLE OF CONTENT 1. Abstracts .............................................................................................................................................. 6 1.1. Abstract ........................................................................................................................................ 6 1.2. Kivonat ........................................................................................................................................ -
Predation of the Chinch Bug, Blissus Occiduus Barber (Hemiptera: Blissidae) by Geocoris Uliginosus (Say) (Hemiptera: Lygaeidae)
University of Nebraska - Lincoln DigitalCommons@University of Nebraska - Lincoln Faculty Publications: Department of Entomology Entomology, Department of 2008 Predation of the Chinch Bug, Blissus occiduus Barber (Hemiptera: Blissidae) by Geocoris uliginosus (Say) (Hemiptera: Lygaeidae) J. D. Carstens University of Nebraska-Lincoln Frederick P. Baxendale University of Nebraska-Lincoln, [email protected] Tiffany Heng-Moss University of Nebraska-Lincoln, [email protected] Robert J. Wright University of Nebraska, [email protected] Follow this and additional works at: https://digitalcommons.unl.edu/entomologyfacpub Part of the Entomology Commons Carstens, J. D.; Baxendale, Frederick P.; Heng-Moss, Tiffany; and Wright, Robert J., "Predation of the Chinch Bug, Blissus occiduus Barber (Hemiptera: Blissidae) by Geocoris uliginosus (Say) (Hemiptera: Lygaeidae)" (2008). Faculty Publications: Department of Entomology. 157. https://digitalcommons.unl.edu/entomologyfacpub/157 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. JOURNAL OF THE KANSAS ENTOMOLOGICAL SOCIETY 81(4), 2008, pp. 328–338 Predation of the Chinch Bug, Blissus occiduus Barber (Hemiptera: Blissidae) by Geocoris uliginosus (Say) (Hemiptera: Lygaeidae) J. D. CARSTENS,F.P.BAXENDALE,T.M.HENG-MOSS, AND R. J. WRIGHT Department of Entomology, University of Nebraska-Lincoln, Lincoln, NE 68583 ABSTRACT: Big-eyed bugs have been well documented as predators on a diverse group of arthropod prey in turfgrasses; however, little is known about the big-eyed bug species associated with buffalograss, or their feeding habits relative to the western chinch bug, Blissus occiduus Barber. -
High Tunnel Pest Management - Aphids
Published by Utah State University Extension and Utah Plant Pest Diagnostic Laboratory ENT-225-21-PR March 2021 High Tunnel Pest Management - Aphids Nick Volesky, Vegetable IPM Associate • Zachary Schumm, Arthropod Diagnostician Winged Aphids Quick Facts • Aphids are small, pear-shaped insects with Thorax green; no abdominal Thorax darker piercing-sucking mouthparts that feed on plant dorsal markings; large (4 mm) than abdomen tissue. They can be found inside high tunnels all season long. • Various species of aphids have a broad host range and can vector several viruses. Potato Aphid Therefore, management in high tunnels can be Macrosipu euphorbiae challenging. • Monitor for aphids in high tunnels by visually inspecting plants for colonies and feeding symptoms. Irregular patch on No abdominal patch; dorsal abdomen; abdomen light to dark • Aphids can be managed in high tunnels through antennal tubercles green; small (<2 mm) cultural, mechanical, biological, and chemical swollen; medium to practices. large (> 3 mm) phids are a common pest that can be found on high Atunnel crops such as fruits, vegetables, ornamentals, Melon Cotton Aphid grasses, and weeds. Four aphid species commonly Aphis gossypii Green Peach Aphid found in Utah in high tunnels are green peach aphid Myzus persicae (Myzus persicae), melon aphid (Aphis gossypii), potato Wingless Aphids aphid (Macrosiphum euphorbiae), and cabbage aphid (Brevicoryne brassicae) (Fig. 1). Cornicles short (same as Cornicles longer than cauda); head flattened; small cauda; antennal insertions (2 mm), rounded body DESCRIPTION developed; medium to large (> 3mm) Aphids are small plant feeding insects in the order Hemiptera (the “true bugs”). Like all true bugs, aphids Melon Cotton Aphid have a piercing-sucking mouthpart (“proboscis”) that Aphis gossypii is used for feeding on plant structures. -
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. -
Beneficial Insects: True Bugs Erin W
Published by Utah State University Extension and Utah Plant Pest Diagnostic Laboratory ENT-111-07 November 2007 Beneficial insects: true bugs Erin W. Hodgson Ron Patterson Extension Entomology Specialist Carbon County Extension What You Should Know • True bugs are fluid feeding insects that suck out juices from plants and animals. • Nymphs and adults feed on the same prey, especially soft-bodied insects like aphids and caterpillars. • Predatory true bugs are usually not host-specific, meaning they do not have a preference for feeding on certain prey. Fig. 2. Bee assassin bug adult.2 rue bugs have piercing-sucking mouthparts (Fig. ) and belong to the order Hemiptera and suborder True Bug Life Cycle THeteroptera. There are more than 38,000 species of true bugs, and are most closely related to aphids, True bugs, and all Hemipterans, go through simple or cicadas, and leaf hoppers. Although some true bugs incomplete metamorphosis. Males and females will are considered pests, about one-third are predaceous. mate end-to-end (Fig. 3), or facing away from each True bugs have forewings, or hemelytra, that cross over other. Mated females lay eggs singly or in small masses the back at rest, but sometimes the wings are reduced near potential food sources. Nymphs hatch from the (Figs. -3). Hemelytra are hardened at the base and eggs and begin to search for small prey items. Nymphs membranous near the end. A triangular patch between look similar to the adults except they are smaller in size the forewings is usually noticeable. True bugs have and lack functional wings; nymphs will develop wing 5-segmented antennae and scent glands. -
Chronobiology of Lygus Lineolaris (Heteroptera: Miridae): Implications for Rearing and Pest Management
Mississippi State University Scholars Junction Theses and Dissertations Theses and Dissertations 1-1-2012 Chronobiology of Lygus Lineolaris (Heteroptera: Miridae): Implications for Rearing and Pest Management Sarah Rose Self Follow this and additional works at: https://scholarsjunction.msstate.edu/td Recommended Citation Self, Sarah Rose, "Chronobiology of Lygus Lineolaris (Heteroptera: Miridae): Implications for Rearing and Pest Management" (2012). Theses and Dissertations. 1059. https://scholarsjunction.msstate.edu/td/1059 This Dissertation - Open Access is brought to you for free and open access by the Theses and Dissertations at Scholars Junction. It has been accepted for inclusion in Theses and Dissertations by an authorized administrator of Scholars Junction. For more information, please contact [email protected]. Automated Template B: Created by James Nail 2011V2.01 Chronobiology of Lygus lineolaris (Heteroptera: Miridae): Implications for rearing and pest management By Sarah Rose Self A Dissertation Submitted to the Faculty of Mississippi State University in Partial Fulfillment of the Requirements for the Degree of Doctor of Philosophy in Agriculture and Life Science in the Department of Biochemistry, Molecular Biology, Entomology, and Plant Pathology Mississippi State, Mississippi August 2012 Chronobiology of Lygus lineolaris (Heteroptera: Miridae): Implications for rearing and pest management By Sarah Rose Self Approved: _________________________________ _________________________________ John C. Schneider Frank -
Program Book
NORTH CENTRAL BRANCH Entomological Society of America 59th Annual Meeting March 28-31, 2004 President Rob Wiedenmann The Fairmont Kansas City At the Plaza 401 Ward Parkway Kansas City, MO 64112 Contents Meeting Logistics ................................................................ 2 2003-2004 Officers and Committees, ESA-NCB .............. 4 2004 North Central Branch Award Recipients ................ 8 Program ............................................................................. 13 Sunday, March 28, 2004 Afternoon ...............................................................13 Evening ..................................................................13 Monday, March 29, 2004 Morning..................................................................14 Afternoon ...............................................................23 Evening ..................................................................42 Tuesday, March 30, 2004 Morning..................................................................43 Afternoon ...............................................................63 Evening ..................................................................67 Wednesday, March 31, 2004 Morning..................................................................68 Afternoon ...............................................................72 Author Index ..............................................................73 Taxonomic Index........................................................84 Key Word Index.........................................................88 -
From Museum Specimen Database to Ecological Statement
From Museum Specimen Database to Ecological Statement Christine A. Johnson1, Richard K. Rabeler2, Charles Bartlett3 © Tom Murray @Rob Naczi © Tom Murray 2 1 3 SPNHC – Cardiff - 2014 Tri-trophic Digitization Thematic Collections Network PI: Randall“Toby” Schuh (AMNH) 32 institutions: 18 insect collections, 14 herbaria NYBG is lead on botanical digitization, AMNH on entomological MAINE OSAC MIN UMEC CUIC MICH NY WIS EMC AMNH ISC CMNH CDFA INHS UDCC EMEC ILL CSUC MU CAS ILLS SEMC COLO MO UKIC KANU NCSU UCRC MEM Herbaria TEX Insect Collections TAMU BPBM Goals Plants Image and database 1.26M specimens from 20 families of vascular plants Unify these with 3.5M specimens from 3 data providers Mobilize total of 6.06M specimens Bugs Database 1.16M specimens from 92 families of Hemiptera Unify these with .38M specimens from 3 data providers Image selected specimens Parasitoids Database 45K specimens from 5 families of Hymenoptera Integrate trophic levels (7.65M records) in Discover Life Progress on Goals Start of Year 4 Botany: (currently at NY) 1,003 M images (79% of expected) data capture and georeferencing varies from skeletal to complete Insects + Parasitoids: 825K records completed (73.3% of expected) Happening Just Last Week Utilization of Collection Data Workshop UC-Riverside, June 17-18, 2014 data-mining and species distribution modeling use Tri-trophic Database as platform targeted to systematists and ecologists From Museum Specimen Database to Ecological Statement: Data Quality Inspection From Museum Specimen Database