Mainstreaming Ecosystem Services and Biodiversity Into Agricultural Production and Management in the Pacific Islands Technical Guidance Document

Total Page:16

File Type:pdf, Size:1020Kb

Mainstreaming Ecosystem Services and Biodiversity Into Agricultural Production and Management in the Pacific Islands Technical Guidance Document MAINSTREAMING ECOSYSTEM SERVICES AND BIODIVERSITY INTO AGRICULTURAL PRODUCTION AND MANAGEMENT IN THE PACIFIC ISLANDS TECHNICAL GUIDANCE DOCUMENT BIODIVERSITY & ECOSYSTEM SERVICES IN AGRICULTURAL PRODUCTION SYSTEMS BIODIVERSITY & ECOSYSTEM SERVICES IN AGRICULTURAL PRODUCTION SYSTEMS MAINSTREAMING ECOSYSTEM SERVICES AND BIODIVERSITY INTO AGRICULTURAL PRODUCTION AND MANAGEMENT IN THE PACIFIC ISLANDS TECHNICAL GUIDANCE DOCUMENT FOOD AND AGRICULTURE ORGANIZATION OF THE UNITED NATIONS SECRETARIAT OF THE CONVENTION ON BIOLOGICAL DIVERSITY SECRETARIAT OF THE PACIFIC REGIONAL ENVIRONMENT PROGRAMME SECRETARIAT OF THE PACIFIC COMMUNITY ROME, 2016 The designations employed and the presentation of material in this information product do not imply the expression of any opinion whatsoever on the part of the Food and Agriculture Organization of the United Nations (FAO), or of Secretariat of the Convention on Biological Diversity (CBD), Secretariat of the Pacific Regional Environment Programme (SPREP) and Secretariat of the Pacific Community (SPC) concerning the legal or development status of any country, territory, city or area or of its authorities, or concerning the delimitation of its frontiers or boundaries. The mention of specific companies or products of manufacturers, whether or not these have been patented, does not imply that these have been endorsed or recommended by FAO, or CBD, SPREP and SPC in preference to others of a similar nature that are not mentioned. The views expressed in this information product are those of the author(s) and do not necessarily reflect the views or policies of FAO, or CBD, SPREP and SPC. The views expressed in this information product are those of the author(s) and do not necessarily reflect the views or policies of FAO. ISBN 978-92-5-109529-4 © FAO, 2016 FAO encourages the use, reproduction and dissemination of material in this information product. Except where otherwise indicated, material may be copied, downloaded and printed for private study, research and teaching purposes, or for use in non-commercial products or services, provided that appropriate acknowledgement of FAO as the source and copyright holder is given and that FAO’s endorsement of users’ views, products or services is not implied in any way. All requests for translation and adaptation rights, and for resale and other commercial use rights should be made via www.fao.org/contact-us/licence-request or addressed to [email protected]. FAO information products are available on the FAO website (www.fao.org/publications) and can be purchased through [email protected]. Cover photo: © Michael Furlong Back cover photos (left to right): © Randy Thaman; © Matt Capper; © S. Tutua; © Clare Morrison MAINSTREAMING ECOSYSTEM SERVICES AND BIODIVERSITY INTO AGRICULTURAL PRODUCTION AND MANAGEMENT IN THE PACIFIC ISLANDS TABLE OF CONTENTS FOREWORD ..............................................................................................................................................ix ACKNOWLEDGEMENTS .................................................................................................................................x ACRONYMS ..............................................................................................................................................xi Part I Context 1. INTRODUCTION .................................................................................................................... 1 Defining biodiversity, ecosystems and ecosystem services ........................................................ 3 Ecosystem approaches to agriculture for conservation of agrobiodiversity and ecosystem services .. 4 Economic assessment of ecosystem services in agriculture ......................................................... 5 About this guidance document ............................................................................................ 6 2. INTERNATIONAL FRAMEWORKS SUPPORTING ECOSYSTEM SERVICES IN AND FOR AGRICULTURE .................................................................................................... 8 Conventions on chemical management .................................................................................. 8 Convention on Biological Diversity ......................................................................................10 Agricultural instruments ....................................................................................................13 Sustainable Development Goals ..............................................................................................13 Biodiversity mainstreaming in the 2030 Agenda for Sustainable Development and other international strategies and agreements .........................................................................15 Part II Agrobiodiversity and ecosystem services in the Pacific Islands 3. ORGANIC FARMING SYSTEMS ............................................................................................ 17 Organic farming practices ..................................................................................................19 Socio-economic benefits of organic farming systems in the Pacific Islands ..................................20 Ecosystem services of organic farming systems ........................................................................21 Challenges for enhancing ecosystem services from organic farming systems ...............................23 Examples of current policy instruments supporting organic agriculture across the Pacific Islands ...23 Recommendations for mainstreaming ecosystem services and biodiversity through organic agriculture in Pacific Island countries’ NBSAPs ......................................................................28 iii BIODIVERSITY & ECOSYSTEM SERVICES IN AGRICULTURAL PRODUCTION SYSTEMS 4. AGROFORESTRY SYSTEMS ..................................................................................................... 31 Agroforestry systems in the Pacific Islands ...........................................................................31 Ecosystem services from agroforestry ...................................................................................33 Challenges to the conservation of agroforestry systems in the Pacific Islands .............................34 Cultural practices that conserve biodiversity and ecosystem services in tree-based systems ..........36 Suggested policy actions to protect agroforestry systems, for uptake in NBSAPs and agricultural sector policies .................................................................................................37 5. ECOSYSTEM SERVICES AND SOIL FERTILITY ........................................................................ 41 Pacific Islands context ......................................................................................................41 Ecosystem services from soil fertility ...................................................................................43 Practices that maintain or enhance soil ecosystem services ....................................................47 Challenges in adopting ecosystem approaches to improving soil fertility ...................................52 Recommendations to capture soil ecosystem services in NBSAPs ..............................................52 Soil fertility initiatives in the implementation of NBSAPs .........................................................54 6. EXPLOITING ECOSYSTEM SERVICES FOR BIOLOGICAL CONTROL OF PESTS AND DISEASES .......... 56 Ecosystem services of ecological pest management ................................................................57 Practices for ecological management of insect pests and diseases ............................................57 Challenges to the adoption of improved pest management strategies ........................................63 Policy and institutional frameworks for adoption of ecological pest management in the Pacific Islands ............................................................................................................64 7. ECOLOGICAL WEED MANAGEMENT ..................................................................................... 66 Ecosystem services of ecological weed management ...............................................................67 Practices of ecological weed management ............................................................................69 Possibilities for using biodiversity to address weed management in agro-ecosystems ..................73 Examples of ecological weed management in the Pacific Islands ..............................................73 Trade-offs and synergies of ecological weed management .........................................................75 Challenges to adoption of ecological weed management and how to foster it .............................76 8. ECOLOGICAL MANAGEMENT OF INVASIVE ALIEN SPECIES ..................................................... 78 Prevention ...........................................................................................................................78 Management ....................................................................................................................80 Challenges of managing invasive alien species in the Pacific Islands.........................................82 Relevant practices for an ecosystem approach to management of invasive alien species in the Pacific Islands ............................................................................................................83
Recommended publications
  • Climate Change's Impact on Key Ecosystem Services and the Human
    US CLIMATE-CHANGE IMPACTS Climate change’s impact on key ecosystem 483 services and the human well-being they support in the US Erik J Nelson1*, Peter Kareiva2, Mary Ruckelshaus3,4, Katie Arkema3,4, Gary Geller5, Evan Girvetz2,4, Dave Goodrich6, Virginia Matzek7, Malin Pinsky8, Walt Reid9, Martin Saunders7, Darius Semmens10, and Heather Tallis3† Climate change alters the functions of ecological systems. As a result, the provision of ecosystem services and the well-being of people that rely on these services are being modified. Climate models portend continued warming and more frequent extreme weather events across the US. Such weather-related disturbances will place a premium on the ecosystem services that people rely on. We discuss some of the observed and anticipated impacts of climate change on ecosystem service provision and livelihoods in the US. We also highlight promis- ing adaptive measures. The challenge will be choosing which adaptive strategies to implement, given limited resources and time. We suggest using dynamic balance sheets or accounts of natural capital and natural assets to prioritize and evaluate national and regional adaptation strategies that involve ecosystem services. Front Ecol Environ 2013; 11(9): 483–493, doi:10.1890/120312 limate change has altered and will continue to alter are ecosystem services. Climate change is expected to Cthe provision, timing, and location of ecosystem increasingly impact, both positively and negatively, the functions across landscapes. Ecosystem functions, such as provision and value of welfare-enhancing services in the nutrient recycling in soil and the timing and volume of US and around the world (Staudinger et al.
    [Show full text]
  • Ecosystem Services and Natural Resources
    ECOSYSTEM SERVICES AND NATURAL RESOURCES Porter Hoagland1*, Hauke Kite-Powell1, Di Jin1, and Charlie Colgan2 1Marine Policy Center Woods Hole Oceanographic Institution Woods Hole, MA 02543 2Center for the Blue Economy Middlebury Institute of International Studies at Monterey Monterey, CA 93940 *Corresponding author. This working paper is a preliminary draft for discussion by participants at the Mid-Atlantic Blue Ocean Economy 2030 meeting. Comments and suggestions are wel- come. Please do not quote or cite without the permission of the authors. 1. Introduction All natural resources, wherever they are found, comprise physical features of the Earth that have economic value when they are in short supply. The supply status of natural resources can be the result of natural occurrences or affected by human degradation or restoration, new scientific in- sights or technological advances, or regulation. The economic value of natural resources can ex- pand or contract with varying environmental conditions, shifting human uses and preferences, and purposeful investments, depletions, or depreciation. It has now become common to characterize flows of goods and services from natural resources, referred to as “ecosystem” (or sometimes “environmental”) services (ESs). The values of ES flows can arise through direct, indirect, or passive uses of natural resources, in markets or as public goods, and a variety of methodologies have been developed to measure and estimate these values. Often the values of ES flows are underestimated or even ignored, and the resulting im- plicit subsidies may lead to the overuse or degradation of the relevant resources or even the broader environment (Fenichel et al. 2016). Where competing uses of resources are potentially mutually exclusive in specific locations or over time, it is helpful to be able to assess—through explicit tradeoffs—the values of ES flows that may be gained or lost when one or more uses are assigned or gain preferential treatment over others.
    [Show full text]
  • Hellula Undalis (Lepidoptera: Pyralidae)—A Possible Control Agent?
    Biological Control 26 (2003) 202–208 www.elsevier.com/locate/ybcon First detection of a microsporidium in the crucifer pest Hellula undalis (Lepidoptera: Pyralidae)—a possible control agent? Inga Mewis,a,d,* Regina G. Kleespies,b Christian Ulrichs,c,d and Wilfried H. Schnitzlerd a Pesticide Research Laboratory, Department of Entomology, Pennsylvania State University, University Park, PA 16802, USA b Federal Biological Research Centre for Agriculture and Forestry, Institute for Biological Control, Heinrichstr. 243, 64287 Darmstadt, Germany c USDA-ARS, Beneficial Insect Introduction Research, 501 South Chapel Str., Newark, DE 19713, USA d Technical University Munich, Institute of Vegetable Science, D€urnast II, 85350 Freising, Germany Received 18 April 2002; accepted 11 September 2002 Abstract For the first time, a microsporidian infection was observed in the pest species Hellula undalis (Lepidoptera: Pyralidae) in crucifer fields in Nueva–Ecija, Philippines. Because H. undalis is difficult to control by chemical insecticides and microbiological control techniques have not been established, we investigated the biology, the pathogenicity and transmission of this pathogen found in H. undalis. An average of 16% of larvae obtained from crucifer fields in Nueva–Ecija displayed microsporidian infections and 75% of infected H. undalis died during larval development. Histopathological studies revealed that the infection is initiated in the midgut and then spreads to all organs. The microsporidium has two different sporulation sequences: a disporoblastic development pro- ducing binucleate free mature spores and an octosporoblastic development forming eight uninucleate spores. These two discrete life cycles imply its taxonomic assignment to the genus Vairimorpha. The size of the binucleate, diplokaryotic spores as measured on Giemsa-stained smears was 3:56 Æ 0:29lm in length and 2:18 Æ 0:21lm in width, whereas the uninucleate octospores measured 2:44 Æ 0:20 Â 1:64 Æ 0:14lm.
    [Show full text]
  • User's Guide Project: the Impact of Non-Native Predators On
    User’s Guide Project: The Impact of Non-Native Predators on Pollinators and Native Plant Reproduction in a Hawaiian Dryland Ecosystem SERDP project number: RC-2432 Principal Investigators: Christina T. Liang, USDA Forest Service Clare E. Aslan, Northern Arizona University William P. Haines, University of Hawaiʻi at Mānoa Aaron B. Shiels, USDA APHIS Contributor: Manette E. Sandor, Northern Arizona University Date: 30 October 2019 Form Approved REPORT DOCUMENTATION PAGE OMB No. 0704-0188 Public reporting burden for this collection of information is estimated to average 1 hour per response, including the time for reviewing instructions, searching existing data sources, gathering and maintaining the data needed, and completing and reviewing this collection of information. Send comments regarding this burden estimate or any other aspect of this collection of information, including suggestions for reducing this burden to Department of Defense, Washington Headquarters Services, Directorate for Information Operations and Reports (0704-0188), 1215 Jefferson Davis Highway, Suite 1204, Arlington, VA 22202- 4302. Respondents should be aware that notwithstanding any other provision of law, no person shall be subject to any penalty for failing to comply with a collection of information if it does not display a currently valid OMB control number. PLEASE DO NOT RETURN YOUR FORM TO THE ABOVE ADDRESS. 1. REPORT DATE (DD-MM-YYYY) 2. REPORT TYPE 3. DATES COVERED (From - To) 10-30-2019 User’s Guide 01-02-2014 to 10-30-2019 4. TITLE AND SUBTITLE 5a. CONTRACT NUMBER User’s Guide. The Impact of Non-Native Predators on Pollinators and Native Plant Reproduction in a Hawaiian Dryland Ecosystem.
    [Show full text]
  • European Corn Borer, Ostrinia Nubilalis (Hübner) (Insecta: Lepidoptera: Crambidae)1 John L
    EENY156 European Corn Borer, Ostrinia nubilalis (Hübner) (Insecta: Lepidoptera: Crambidae)1 John L. Capinera2 Distribution flights and oviposition typically occur in May, late June, and August. In locations with four generations, adults are active First found in North America near Boston, Massachusetts in April, June, July, and August-September. in 1917, European corn borer, Ostrinia nubilalis (Hübner), now has spread as far west as the Rocky Mountains in both Egg Canada and the United States, and south to the Gulf Coast Eggs are deposited in irregular clusters of about 15 to 20. states. European corn borer is thought to have originated in The eggs are oval, flattened, and creamy white in color, Europe, where it is widespread. It also occurs in northern usually with an iridescent appearance. The eggs darken Africa. The North American European corn borer popula- to a beige or orangish tan color with age. Eggs normally tion is thought to have resulted from multiple introductions are deposited on the underside of leaves, and overlap like from more than one area of Europe. Thus, there are at least shingles on a roof or fish scales. Eggs measure about 1.0 two, and possibly more, strains present. This species occurs mm in length and 0.75 m in width. The developmental infrequently in Florida. threshold for eggs is about 15°C. Eggs hatch in four to nine days. Life Cycle and Description The number of generations varies from one to four, with only one generation occurring in northern New England and Minnesota and in northern areas of Canada, whereas three to four generations occur in Virginia and other southern locations.
    [Show full text]
  • A Magyar Természettudományi Múzeum Évkönyve 79. (Budapest 1987)
    ANNALES HISTORICO-NATURALES MUSEI NATIONALIS HUNGARICI Tomus 79. Budapest, 1987 p. 167-178. Taxonomic and zoogeographical studies on the subfamily Plusiinae (Lepidoptera, Noctuidae). The Palaeotropical, Oriental and Nearctic material of the Zoological Museum, Copenhagen by L. RONKAY, Budapest L. RONKAY: Taxonomic and zoogeographical studies on the subfamily Plusiinae (Lepidoptera, Noctuidae). The Palaeotropical, Oriental and Nearctic material of the Zoological Museum, Copen­ hagen. — Annls hist.-nat. Mus. natn. hung. 1987 79: 167-178. Abstract — Three new genera, Anaplusia gen. n., Extremoplusia gen. n. and Scriptoplusia gen. n. and one new species, Scriptoplusia noona sp. n. are described and an annotated list of 50 species from N America, Africa and the Oriental Region is given. With 26 figures and 1 photoplate. In 1986Ihadtthe opportunity to study the Palaeotropical, Nearctic and Indo-Australian Plusiinae material of the Zoological Museum of Copenhagen. During the course of this work I could study in details some species which had not been relagated to any described genera. These studies, based on the external and genitalic morphology including the characteristics of the vesica, have shown the necessity to erect three new genera for these taxa. — The whole material contains specimens of 50 species, one of them is new for science and there are several previously unknown distribution records of the species. I would like to express my thanks to Dr. Ole Karsholt (Zool. Mus., Copenhagen) for his exten­ sive help in this work and also to Dr. L. Gozmány (Budapest) for his useful advice. 1. DESCRIPriON OF THE NEW TAXA It is an interesting fact that there are some species, distributed over the Eastern-South­ eastern border of the Palaearctic Region to Indonesia, Australia and New Guinea, which appear to be remote from any well-known genera of the Eastern Tropical Plusiinae.
    [Show full text]
  • Autographa Gamma
    1 Table of Contents Table of Contents Authors, Reviewers, Draft Log 4 Introduction to the Reference 6 Soybean Background 11 Arthropods 14 Primary Pests of Soybean (Full Pest Datasheet) 14 Adoretus sinicus ............................................................................................................. 14 Autographa gamma ....................................................................................................... 26 Chrysodeixis chalcites ................................................................................................... 36 Cydia fabivora ................................................................................................................. 49 Diabrotica speciosa ........................................................................................................ 55 Helicoverpa armigera..................................................................................................... 65 Leguminivora glycinivorella .......................................................................................... 80 Mamestra brassicae....................................................................................................... 85 Spodoptera littoralis ....................................................................................................... 94 Spodoptera litura .......................................................................................................... 106 Secondary Pests of Soybean (Truncated Pest Datasheet) 118 Adoxophyes orana ......................................................................................................
    [Show full text]
  • Hymenoptera: Eulophidae) 321-356 ©Entomofauna Ansfelden/Austria; Download Unter
    ZOBODAT - www.zobodat.at Zoologisch-Botanische Datenbank/Zoological-Botanical Database Digitale Literatur/Digital Literature Zeitschrift/Journal: Entomofauna Jahr/Year: 2007 Band/Volume: 0028 Autor(en)/Author(s): Yefremova Zoya A., Ebrahimi Ebrahim, Yegorenkova Ekaterina Artikel/Article: The Subfamilies Eulophinae, Entedoninae and Tetrastichinae in Iran, with description of new species (Hymenoptera: Eulophidae) 321-356 ©Entomofauna Ansfelden/Austria; download unter www.biologiezentrum.at Entomofauna ZEITSCHRIFT FÜR ENTOMOLOGIE Band 28, Heft 25: 321-356 ISSN 0250-4413 Ansfelden, 30. November 2007 The Subfamilies Eulophinae, Entedoninae and Tetrastichinae in Iran, with description of new species (Hymenoptera: Eulophidae) Zoya YEFREMOVA, Ebrahim EBRAHIMI & Ekaterina YEGORENKOVA Abstract This paper reflects the current degree of research of Eulophidae and their hosts in Iran. A list of the species from Iran belonging to the subfamilies Eulophinae, Entedoninae and Tetrastichinae is presented. In the present work 47 species from 22 genera are recorded from Iran. Two species (Cirrospilus scapus sp. nov. and Aprostocetus persicus sp. nov.) are described as new. A list of 45 host-parasitoid associations in Iran and keys to Iranian species of three genera (Cirrospilus, Diglyphus and Aprostocetus) are included. Zusammenfassung Dieser Artikel zeigt den derzeitigen Untersuchungsstand an eulophiden Wespen und ihrer Wirte im Iran. Eine Liste der für den Iran festgestellten Arten der Unterfamilien Eu- lophinae, Entedoninae und Tetrastichinae wird präsentiert. Mit vorliegender Arbeit werden 47 Arten in 22 Gattungen aus dem Iran nachgewiesen. Zwei neue Arten (Cirrospilus sca- pus sp. nov. und Aprostocetus persicus sp. nov.) werden beschrieben. Eine Liste von 45 Wirts- und Parasitoid-Beziehungen im Iran und ein Schlüssel für 3 Gattungen (Cirro- spilus, Diglyphus und Aprostocetus) sind in der Arbeit enthalten.
    [Show full text]
  • Application of Trap Cropping As Companion Plants for the Management of Agricultural Pests: a Review
    Review Application of Trap Cropping as Companion Plants for the Management of Agricultural Pests: A Review Shovon Chandra Sarkar, Endong Wang, Shengyong Wu * and Zhongren Lei * State Key Laboratory for Biology of Plant Diseases and Insect Pests, Institute of Plant Protection, Chinese Academy of Agricultural Sciences, Beijing 100193, China; [email protected] (S.C.S.); [email protected] (E.W.) * Correspondence: [email protected] (S.W.); [email protected] (Z.L.) Received: 20 August 2018; Accepted: 21 September 2018; Published: 25 September 2018 Abstract: Companion planting is a well-known strategy to manage insect pests and support a natural enemy population through vegetative diversification. Trap cropping is one such type of special companion planting strategy that is traditionally used for insect pest management through vegetative diversification used to attract insect pests away from the main crops during a critical time period by providing them an alternative preferred choice. Trap crops not only attract the insects for feeding and oviposition, but also act as a sink for any pathogen that may be a vector. Considerable research has been conducted on different trap crops as companion plant species to develop improved pest management strategies. Despite this, little consensus exists regarding optimal trap cropping systems for diverse pest management situations. An advantage of trap cropping over an artificially released natural enemy-based biological control could be an attractive remedy for natural enemies in cropping systems. Besides, many trap crop species can conserve natural enemies. This secondary effect of attracting natural enemies may be an advantage compared to the conventional means of pest control.
    [Show full text]
  • Feminizing Wolbachia in an Insect, Ostrinia Furnacalis (Lepidoptera: Crambidae)
    Heredity (2002) 88, 444–449 2002 Nature Publishing Group All rights reserved 0018-067X/02 $25.00 www.nature.com/hdy Feminizing Wolbachia in an insect, Ostrinia furnacalis (Lepidoptera: Crambidae) D Kageyama, G Nishimura, S Hoshizaki and Y Ishikawa Laboratory of Applied Entomology, Department of Agricultural and Environmental Biology, Graduate School of Agricultural and Life Sciences, University of Tokyo, Japan Wolbachia, which forms a group of maternally inherited bac- findings indicate that the Wolbachia infection induces femin- teria in arthropods, often cause reproduction alterations in ization of genetic males in O. furnacalis. Differences in the their hosts, such as cytoplasmic incompatibility, partheno- Wolbachia-induced feminization in O. furnacalis and that in genesis, male-killing, hybrid breakdown and feminization. To isopods are discussed along with the differences in sex date, Wolbachia-induced feminization has been reported determination mechanisms between insects and isopods. only in isopods. Here we report that a Wolbachia strain femi- Phylogenetic analysis of the wsp gene sequence of Wolba- nizes an insect host, Ostrinia furnacalis. Among 79 wild chia suggests independent evolutionary origins for the females of O. furnacalis examined, Wolbachia infection was Wolbachia-induced feminizations in O. furnacalis and in iso- detected in 13 females. Twelve of the 13 infected females pods. Our findings over 5 years suggest that the infection produced all-female progenies, and this trait was maternally has been maintained at a low prevalence in the O. furna- inherited. Tetracycline treatment of thelygenic matrilines calis population. resulted in the production of all-male progenies. The present Heredity (2002) 88, 444–449. DOI: 10.1038/sj/hdy/6800077 Keywords: feminization; Lepidoptera; Ostrinia furnacalis; sex-ratio distorter; Wolbachia Introduction In the present study, we reveal that the feminization of genetic males in O.
    [Show full text]
  • Cross-Crop Resistance of Spodoptera Frugiperda Selected on Bt Maize To
    www.nature.com/scientificreports OPEN Cross‑crop resistance of Spodoptera frugiperda selected on Bt maize to genetically‑modifed soybean expressing Cry1Ac and Cry1F proteins in Brazil Eduardo P. Machado1, Gerson L. dos S. Rodrigues Junior1, Fábio M. Führ1, Stefan L. Zago1, Luiz H. Marques2*, Antonio C. Santos2, Timothy Nowatzki3, Mark L. Dahmer3, Celso Omoto4 & Oderlei Bernardi1* Spodoptera frugiperda is one of the main pests of maize and cotton in Brazil and has increased its occurrence on soybean. Field‑evolved resistance of this species to Cry1 Bacillus thuringiensis (Bt) proteins expressed in maize has been characterized in Brazil, Argentina, Puerto Rico and southeastern U.S. Here, we conducted studies to evaluate the survival and development of S. frugiperda strains that are susceptible, selected for resistance to Bt‑maize single (Cry1F) or pyramided (Cry1F/Cry1A.105/ Cry2Ab2) events and F­ 1 hybrids of the selected and susceptible strains (heterozygotes) on DAS‑ 444Ø6‑6 × DAS‑81419‑2 soybean with tolerance to 2,4‑d, glyphosate and ammonium glufosinate herbicides (event DAS‑444Ø6‑6) and insect‑resistant due to expression of Cry1Ac and Cry1F Bt proteins (event DAS‑81419‑2). Susceptible insects of S. frugiperda did not survive on Cry1Ac/Cry1F‑ soybean. However, homozygous‑resistant and heterozygous insects were able to survive and emerge as fertile adults when fed on Cry1Ac/Cry1F‑soybean, suggesting that the resistance is partially recessive. Life history studies revealed that homozygous‑resistant insects had similar development, reproductive performance, net reproductive rate, intrinsic and fnite rates of population increase on Cry1Ac/Cry1F‑soybean and non‑Bt soybean. In contrast, heterozygotes had their fertility life table parameters signifcantly reduced on Cry1Ac/Cry1F‑soybean.
    [Show full text]
  • Induction of Plant Synomones by Oviposition of a Phytophagous Insect
    Journal of Chemical Ecology, Vol. 26, No. 1, 2000 INDUCTION OF PLANT SYNOMONES BY OVIPOSITION OF A PHYTOPHAGOUS INSECT TORSTEN MEINERS and MONIKA HILKER* Freie Universitat¨ Berlin Institut fur¨ Zoologie D-12163 Berlin, Germany (Received February 18, 1999; accepted September 4, 1999) Abstract—Earlier investigations of host habitat location in the egg parasitoid Oomyzus gallerucae have shown that oviposition of the elm leaf beetle (Xanthogaleruca luteola) induces the field elm (Ulmus minor) to emit volatiles that attract the egg parasitoid. In this study we investigated the mechanism of this induction by testing the effects of differently treated elm leaves on O. gallerucae in a four-arm olfactometer. First we investigated which sequence of the herbivore oviposition behavior is necessary for the synomone induction. The following major sequences were observed: (1) Prior oviposition, the gravid female gnawed shallow grooves into the leaf surface. (2) After gnawing upon the leaf surface, the female attached about 20–30 eggs with oviduct secretion in the grooves. We experimentally mimicked the shallow grooves on the leaf surface by scratching the leaf surface with a scalpel (c scratched leaves). Volatiles from such scratched leaves did not attract the egg parasitoid. However, as soon as eggs with oviduct secretion, or only oviduct secretion, was applied to these scratched leaves, they emitted attractive volatiles. Application of oviduct secretion and eggs on undamaged leaves did not elicit release of attractive synomones. Thus, an elicitor is located in the oviduct secretion, but becomes active only when the leaf surface is damaged. Jasmonic acid is known as a mediator of plant responses induced by feeding of herbivorous arthropods, and we demonstrate that it mediates production of elm synomones that attract O.
    [Show full text]