Coleomegilla Maculata (Degeer) Predation on Eggs of Colorado Potato Beetle, Leptinotarsa Decemlineata (Say)
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The Green Lacewings of the Genus Chrysopa in Maryland ( Neuroptera: Chrysopidae)
The Green Lacewings of the Genus Chrysopa in Maryland ( Neuroptera: Chrysopidae) Ralph A. Bram and William E. Bickley Department of Entomology INTRODUCTION Tlw green lacewings which are members of the genus Chrysopa are extreme- ly lwndicia1 insects. The larvae are commonly called aphislions and are well known as predators of aphids and other injurious insects. They play an important part in the regulation of populations of pests under natural conditions, and in California they have been cultured in mass and released for the control of mealy- bugs ( Finney, 1948 and 1950) . The positive identification of members of the genus is desirable for the use of biological-control workers and entomologists in general. Descriptions of most of the Nearctic species of Chrysopidae have relied heavily on body pigmentation and to a lesser extent on wing shape, venational patterns and coloration. Specimens fade when preserved in alcohol or on pins, and natural variation in color patterns occurs in many species ( Smith 1922, Bickley 1952). It is partly for these reasons that some of the most common and relatively abundant representatives of the family are not easily recognized. The chrysopid fauna of North America was treated comprehensively by Banks ( 1903). Smith ( 1922) contributed valuable information about the biology of the green lacewings and about the morphology and taxonomy of the larvae. He also pro- vided k<'ys and other help for the identification of species from Kansas ( 1925, 1934) and Canada ( 1932). Froeschner ( 194 7) similarly dealt with Missouri species. Bickley and MacLeod ( 1956) presented a review of the family as known to occur in the N earctic region north of Mexico. -
Biological Control of Insect Pests in the Tropics - M
TROPICAL BIOLOGY AND CONSERVATION MANAGEMENT – Vol. III - Biological Control of Insect Pests In The Tropics - M. V. Sampaio, V. H. P. Bueno, L. C. P. Silveira and A. M. Auad BIOLOGICAL CONTROL OF INSECT PESTS IN THE TROPICS M. V. Sampaio Instituto de Ciências Agrária, Universidade Federal de Uberlândia, Brazil V. H. P. Bueno and L. C. P. Silveira Departamento de Entomologia, Universidade Federal de Lavras, Brazil A. M. Auad Embrapa Gado de Leite, Empresa Brasileira de Pesquisa Agropecuária, Brazil Keywords: Augmentative biological control, bacteria, classical biological control, conservation of natural enemies, fungi, insect, mite, natural enemy, nematode, predator, parasitoid, pathogen, virus. Contents 1. Introduction 2. Natural enemies of insects and mites 2.1. Entomophagous 2.1.1. Predators 2.1.2. Parasitoids 2.2. Entomopathogens 2.2.1. Fungi 2.2.2. Bacteria 2.2.3. Viruses 2.2.4. Nematodes 3. Categories of biological control 3.1. Natural Biological Control 3.2. Applied Biological Control 3.2.1. Classical Biological Control 3.2.2. Augmentative Biological Control 3.2.3. Conservation of Natural Enemies 4. Conclusions Glossary UNESCO – EOLSS Bibliography Biographical Sketches Summary SAMPLE CHAPTERS Biological control is a pest control method with low environmental impact and small contamination risk for humans, domestic animals and the environment. Several success cases of biological control can be found in the tropics around the world. The classical biological control has been applied with greater emphasis in Australia and Latin America, with many success cases of exotic natural enemies’ introduction for the control of exotic pests. Augmentative biocontrol is used in extensive areas in Latin America, especially in the cultures of sugar cane, coffee, and soybeans. -
Contrasting Ladybird Beetle Responses to Urban Environments Across Two US Regions
sustainability Article Context Matters: Contrasting Ladybird Beetle Responses to Urban Environments across Two US Regions Monika Egerer 1,* ID , Kevin Li 2 and Theresa Wei Ying Ong 3,4 ID 1 Environmental Studies Department, University of California, Santa Cruz, Santa Cruz, CA 95064, USA 2 Department of Plant Sciences, University of Göttingen, Göttingen NI 37077, Germany; [email protected] 3 Department of Ecology and Evolutionary Biology, University of Michigan, Ann Arbor, MI 48109, USA; [email protected] 4 Department of Ecology and Evolutionary Biology, Princeton University, Princeton, NJ 08540, USA * Correspondence: [email protected]; Tel.: +1-734-775-8950 Received: 8 April 2018; Accepted: 30 May 2018; Published: 1 June 2018 Abstract: Urban agroecosystems offer an opportunity to investigate the diversity and distribution of organisms that are conserved in city landscapes. This information is not only important for conservation efforts, but also has important implications for sustainable agricultural practices. Associated biodiversity can provide ecosystem services like pollination and pest control, but because organisms may respond differently to the unique environmental filters of specific urban landscapes, it is valuable to compare regions that have different abiotic conditions and urbanization histories. In this study, we compared the abundance and diversity of ladybird beetles within urban gardens in California and Michigan, USA. We asked what species are shared, and what species are unique to urban regions. Moreover, we asked how beetle diversity is influenced by the amount and rate of urbanization surrounding sampled urban gardens. We found that the abundance and diversity of beetles, particularly of unique species, respond in opposite directions to urbanization: ladybirds increased with urbanization in California, but decreased with urbanization in Michigan. -
Non-Target Organism Risk Assessment of MIR604 Maize Expressing Mcry3a for Control of Corn Rootworm
J. Appl. Entomol. 131(6), 391–399 (2007) doi: 10.1111/j.1439-0418.2007.01200.x Ó 2007 The Authors Journal compilation Ó 2007 Blackwell Verlag, Berlin Non-target organism risk assessment of MIR604 maize expressing mCry3A for control of corn rootworm A. Raybould1, D. Stacey1, D. Vlachos2, G. Graser2,X.Li2 and R. Joseph2 1Syngenta, Jealott’s Hill International Research Centre, Bracknell, Berkshire, UK; 2Syngenta Biotechnology, Inc., Research Triangle Park, NC, USA Ms. received: February 19, 2007; accepted: April 6, 2007 Abstract: Event MIR604 maize expresses a modified Cry3A protein (mCry3A), for control of corn rootworm. As part of the environmental safety assessment of MIR604 maize, risks to non-target organisms of mCry3A were assessed. The potential exposure of non-target organisms to mCry3A following cultivation of MIR604 maize was determined, and the hypothesis that such exposure is not harmful was tested. The hypothesis was tested rigorously by making worst-case or highly conservative assumptions about exposure, along with laboratory testing for hazards using species taxonomically related to the target pest and species expected to have high exposure to mCry3A, or both. Further rigour was introduced by study designs incorporating long exposures and measurements of sensitive endpoints. No adverse effects were observed in any study, and in most cases exposure to mCry3A in the study was higher than the worst-case expected exposure. In all cases, exposure in the study was higher than realistic, but still conservative, estimates of exposure. These results indicate minimal risk of MIR604 maize to non-target organisms. Key words: environmental safety, exposure, hazard, hypothesis testing, transgenic plants 1 Introduction Control of corn rootworms requires insecticides or crop rotation, and both methods can occasionally fail Corn rootworms are serious pests of maize in the USA, to prevent yield loss because of adaptation of the pest where they cause estimated annual losses of 1 billion (Rice 2003). -
Arthropod Communities and Transgenic Cotton in the Western United States: Implications for Biological Control S.E
284 Naranjo and Ellsworth ___________________________________________________________________ ARTHROPOD COMMUNITIES AND TRANSGENIC COTTON IN THE WESTERN UNITED STATES: IMPLICATIONS FOR BIOLOGICAL CONTROL S.E. Naranjo1 and P.C. Ellsworth2 1U.S. Department of Agriculture, Agricultural Research Service, Phoenix, Arizona, U.S.A. 2University of Arizona, Maricopa, Arizona, U.S.A. INTRODUCTION Cotton, transgenically modified to express the insecticidal proteins of Bacillus thuringiensis (Bt), has been available commercially in the United States since 1996. Bt cotton is widely used throughout the cotton belt (Layton et al., 1999), and more than 65% of the acreage in Arizona has been planted to Bt cotton since 1997. In the low desert production areas of Arizona and California, Pectinophora gossypiella (Saunders), the pink bollworm, is the major target of Bt cotton. A number of other lepidopterous species occur in this area, but they are sporadic secondary pests of cotton whose population outbreaks are typically induced by indiscriminate use of broad-spectrum insecticides. As a result of the adoption of Bt-cotton and the coincident introduction and adoption of selective insect growth regulators for suppression of Bemisia tabaci (Gennadius), insecticide usage in Arizona cotton over the past decade as declined from a high of 12.5 applications per acre in 1995 to 1.9 in 1999 (Ellsworth and Jones, 2001). These reductions in insecticide use have broadened opportunities for all biological control approaches in cotton. Beyond concern for the maintenance of susceptibility in target pest populations there also are a number of ecological and environmental questions associated with use of transgenic crops, one of the most prominent being effects on non-target organisms. -
E0020 Common Beneficial Arthropods Found in Field Crops
Common Beneficial Arthropods Found in Field Crops There are hundreds of species of insects and spi- mon in fields that have not been sprayed for ders that attack arthropod pests found in cotton, pests. When scouting, be aware that assassin bugs corn, soybeans, and other field crops. This publi- can deliver a painful bite. cation presents a few common and representative examples. With few exceptions, these beneficial Description and Biology arthropods are native and common in the south- The most common species of assassin bugs ern United States. The cumulative value of insect found in row crops (e.g., Zelus species) are one- predators and parasitoids should not be underes- half to three-fourths of an inch long and have an timated, and this publication does not address elongate head that is often cocked slightly important diseases that also attack insect and upward. A long beak originates from the front of mite pests. Without biological control, many pest the head and curves under the body. Most range populations would routinely reach epidemic lev- in color from light brownish-green to dark els in field crops. Insecticide applications typical- brown. Periodically, the adult female lays cylin- ly reduce populations of beneficial insects, often drical brown eggs in clusters. Nymphs are wing- resulting in secondary pest outbreaks. For this less and smaller than adults but otherwise simi- reason, you should use insecticides only when lar in appearance. Assassin bugs can easily be pest populations cannot be controlled with natu- confused with damsel bugs, but damsel bugs are ral and biological control agents. -
Wikipedia Beetles Dung Beetles Are Beetles That Feed on Feces
Wikipedia beetles Dung beetles are beetles that feed on feces. Some species of dung beetles can bury dung times their own mass in one night. Many dung beetles, known as rollers , roll dung into round balls, which are used as a food source or breeding chambers. Others, known as tunnelers , bury the dung wherever they find it. A third group, the dwellers , neither roll nor burrow: they simply live in manure. They are often attracted by the dung collected by burrowing owls. There are dung beetle species of different colours and sizes, and some functional traits such as body mass or biomass and leg length can have high levels of variability. All the species belong to the superfamily Scarabaeoidea , most of them to the subfamilies Scarabaeinae and Aphodiinae of the family Scarabaeidae scarab beetles. As most species of Scarabaeinae feed exclusively on feces, that subfamily is often dubbed true dung beetles. There are dung-feeding beetles which belong to other families, such as the Geotrupidae the earth-boring dung beetle. The Scarabaeinae alone comprises more than 5, species. The nocturnal African dung beetle Scarabaeus satyrus is one of the few known non-vertebrate animals that navigate and orient themselves using the Milky Way. Dung beetles are not a single taxonomic group; dung feeding is found in a number of families of beetles, so the behaviour cannot be assumed to have evolved only once. Dung beetles live in many habitats , including desert, grasslands and savannas , [9] farmlands , and native and planted forests. They are found on all continents except Antarctica. They eat the dung of herbivores and omnivores , and prefer that produced by the latter. -
Corn Earworm, Helicoverpa Zea (Boddie) (Lepidoptera: Noctuidae)1 John L
EENY-145 Corn Earworm, Helicoverpa zea (Boddie) (Lepidoptera: Noctuidae)1 John L. Capinera2 Distribution California; and perhaps seven in southern Florida and southern Texas. The life cycle can be completed in about 30 Corn earworm is found throughout North America except days. for northern Canada and Alaska. In the eastern United States, corn earworm does not normally overwinter suc- Egg cessfully in the northern states. It is known to survive as far north as about 40 degrees north latitude, or about Kansas, Eggs are deposited singly, usually on leaf hairs and corn Ohio, Virginia, and southern New Jersey, depending on the silk. The egg is pale green when first deposited, becoming severity of winter weather. However, it is highly dispersive, yellowish and then gray with time. The shape varies from and routinely spreads from southern states into northern slightly dome-shaped to a flattened sphere, and measures states and Canada. Thus, areas have overwintering, both about 0.5 to 0.6 mm in diameter and 0.5 mm in height. overwintering and immigrant, or immigrant populations, Fecundity ranges from 500 to 3000 eggs per female. The depending on location and weather. In the relatively mild eggs hatch in about three to four days. Pacific Northwest, corn earworm can overwinter at least as far north as southern Washington. Larva Upon hatching, larvae wander about the plant until they Life Cycle and Description encounter a suitable feeding site, normally the reproductive structure of the plant. Young larvae are not cannibalistic, so This species is active throughout the year in tropical and several larvae may feed together initially. -
Dinocampus Coccinellae (Hymenoptera: Braconidae) Utilizes Both Coccinellini and Chilocorini (Coleoptera: Coccinellidae: Coccinellinae) As Hosts in Kashmir Himalayas
EUROPEAN JOURNAL OF ENTOMOLOGYENTOMOLOGY ISSN (online): 1802-8829 Eur. J. Entomol. 115: 332–338, 2018 http://www.eje.cz doi: 10.14411/eje.2018.033 ORIGINAL ARTICLE Dinocampus coccinellae (Hymenoptera: Braconidae) utilizes both Coccinellini and Chilocorini (Coleoptera: Coccinellidae: Coccinellinae) as hosts in Kashmir Himalayas AMIR MAQBOOL1, IMTIAZ AHMED 2, PIOTR KIEŁTYK 3 and PIOTR CERYNGIER 3 1 Department of Zoology, Government College for Women, M.A. Road Srinagar – 190001, Jammu and Kashmir, India; e-mail: [email protected] 2 P.G. Department of Zoology, University of Kashmir, Hazratbal Srinagar – 190006, Jammu and Kashmir, India; e-mail: [email protected] 3 Faculty of Biology and Environmental Sciences, Cardinal Stefan Wyszyński University, Wóycickiego 1/3, 01-938 Warsaw, Poland; e-mails: [email protected], [email protected] Key words. Hymenoptera, Braconidae, Dinocampus coccinellae, Coleoptera, Coccinellidae, Oenopia conglobata, Priscibrumus uropygialis, parasitoid, host selection, host suitability Abstract. Dinocampus coccinellae is a parasitoid wasp usually parasitizing ladybird beetles of the tribe Coccinellini. A fi eld survey conducted between March and November 2016 revealed three hosts of this parasitoid in the Srinagar district of the Indian state of Jammu and Kashmir: two members of the Coccinellini (Oenopia conglobata and Coccinella undecimpunctata) and one of the Chi- locorini (Priscibrumus uropygialis). Proportion of the latter (atypical) host that were parasitized was 0.09 and intermediate between that recorded for C. undecimpunctata (0.06) and O. conglobata (0.14). A series of laboratory experiments revealed that while a member of Coccinellini (O. conglobata) was more often attacked by D. coccinellae than a member of Chilocorini (P. -
(Coleoptera: Carabidae) As Parasitoids C 719 of Any Race of A
Carabid Beetles (Coleoptera: Carabidae) as Parasitoids C 719 of any race of A. mellifera. Migratory beekeepers Capsid managing scutellata in the northern part of South Africa have moved bees into the fynbos region of The protein coat or shell of a virus particle; the South Africa where the Cape bee is present (the capsid is a surface crystal, built of structure units. reciprocal also happens). This has allowed Cape workers to drift into and parasitize Apis mellifera Capsids scutellata colonies. This action has been a significant problem for beekeepers because Cape-parasitized Some members of the family Miridae (order colonies often dwindle and die. Furthermore, Cape Hemiptera). bees are specialist foragers in the fynbos region and Plant Bugs they often perform poorly when taken outside of this Bugs region. So Apis mellifera scutellata colonies parasit- ized by Cape bees in the northern part of South Capsomere Africa can become useless to beekeepers. Beekeepers in South Africa often consider A cluster of structure units arranged on the sur- Cape bees more of a serious threat to their colo- face of the nucleocapsid, in viruses possessing nies than varroa mites (Varroa destructor, the most cubic symmetry. prolific pest of honey bees). Because of this, researchers globally have taken notice of Cape Carabidae bees. Many fear that if Cape bees ever spread out- side of South Africa, they may be a significant A family of beetles (order Coleoptera). They com- problem for beekeepers worldwide. monly are known as ground beetles. Beetles References Hepburn HR (2001) The enigmatic Cape honey bee,Apis mel- Carabid Beetles (Coleoptera: lifera capensis. -
Evaluation of Natural Enemies of the European Corn Borer, Ostrinia Nubilalis (Lepidoptera: Pyralidae) Mpho Wycliffe Hop Ofolo Iowa State University
Iowa State University Capstones, Theses and Retrospective Theses and Dissertations Dissertations 1997 Evaluation of natural enemies of the European corn borer, Ostrinia nubilalis (Lepidoptera: Pyralidae) Mpho Wycliffe hoP ofolo Iowa State University Follow this and additional works at: https://lib.dr.iastate.edu/rtd Part of the Ecology and Evolutionary Biology Commons, Entomology Commons, and the Environmental Sciences Commons Recommended Citation Phoofolo, Mpho Wycliffe, "Evaluation of natural enemies of the European corn borer, Ostrinia nubilalis (Lepidoptera: Pyralidae) " (1997). Retrospective Theses and Dissertations. 12231. https://lib.dr.iastate.edu/rtd/12231 This Dissertation is brought to you for free and open access by the Iowa State University Capstones, Theses and Dissertations at Iowa State University Digital Repository. It has been accepted for inclusion in Retrospective Theses and Dissertations by an authorized administrator of Iowa State University Digital Repository. For more information, please contact [email protected]. INFORMATION TO USERS This manuscript has been reproduced from the microfihn master. UMI fihns the text directly from the original or copy submitted. Thus, some thesis and dissertation copies are in typewriter &ce, \^e others may be from any of computer printer. The quality of this reproduction is dependent upon the quality of the copy submitted. Broken or indistinct print, colored or poor quality illustrations and photographs, print bleedthrough, substandard margins, and improper alignment can adversely affect reproductioiL In the unlikely event that the author did not send UMI a complete manuscript and there are missing pages, these will be noted. Also, if unauthorized copyright material had to be removed, a note will indicate the deletion. -
Perspectives in Ecological Theory and Integrated Pest Management
Perspectives in Ecological Theory and Integrated Pest Management Since the early days of integrated pest management a sound ecological foundation has been considered essential for the development of effective systems. From time to time, there have been attempts to evaluate the ways in which ecological theory is exploited in pest control, and to review the lessons that ecologists learn from pest management. In the last 20 years there have been many developments within the contribution of ecological theory to integrated pest management, and the objective of this book is to capture some of the new themes in both pest management and ecology that have emerged and to provide an updated assessment of the role that basic ecology plays in the development of rational and sustainable pest management practices. The major themes are examined, assessing the significance and potential impact of recent technological and conceptual developments for the future of integrated pest management. Marcos Kogan is Professor and Director Emeritus of the Integrated Plant Protection Center at Oregon State University. Paul Jepson has been Director of the Integrated Plant Protection Center at Oregon State University since 2002. Perspectives in Ecological Theory and Integrated Pest Management edited by Marcos Kogan and Paul Jepson Oregon State University cambridge university press Cambridge, New York, Melbourne, Madrid, Cape Town, Singapore, Sa˜o Paulo Cambridge University Press The Edinburgh Building, Cambridge CB2 8RU, UK Published in the United States of America by Cambridge University Press, New York www.cambridge.org Information on this title: www.cambridge.org/9780521822138 ß Cambridge University Press 2007 This publication is in copyright.