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Dissertations / Theses on the topic 'Conservation biological control'

Author: Grafiati

Published: 4 June 2021

Last updated: 25 July 2025

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1

Frank, Steven D. "Evaluation of conservation strips as a conservation biological control technique on golf courses." College Park, Md. : University of Maryland, 2004. http://hdl.handle.net/1903/129.

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Thesis (M.S.) -- University of Maryland, College Park, 2003.<br>Thesis research directed by: Entomology. Title from t.p. of PDF. Includes bibliographical references. Published by UMI Dissertation Services, Ann Arbor, Mich. Also available in paper.

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Garcia, André Filipe Fidalgo Casquilho. "Enhancing biological control against Eucalyptus pests." Doctoral thesis, ISA, 2020. http://hdl.handle.net/10400.5/21212.

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3

Dieterich, Mabin Molly E. "Effects of conservation biological control practices on predatory arthropod assemblages and molecular identification of cucumber beetle biological control agents." The Ohio State University, 2017. http://rave.ohiolink.edu/etdc/view?acc_num=osu1492531428052099.

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4

Key, Georgina. "Cross-crop benefits : developing crop combinations to promote conservation biological pest control." Thesis, Lancaster University, 2013. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.658572.

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In agroecosystems, conservation biological control is often constrained by low availability of pollen and nectar. Although floral resources can be integrated into agricultural systems, this usually requires sacrifice of productive land. This thesis describes experiments which test the influence of floral resources provided by species which have marketable value in their own right as food or medicinal crops. Floralresource strips comprising such species were intercropped with Brassica crops at plot, field and commercial scales in replicated field experiments. The abundance and distribution of k

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5

Shackelford, Gorm. "Biodiversity and ecosystem services : pollination, biological control, and nature conservation in agricultural landscapes." Thesis, University of Leeds, 2014. http://etheses.whiterose.ac.uk/7411/.

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Agriculture has done more damage to nature than any other human activity, and yet food production could need to be doubled by the middle of this century. As agricultural land is expanded and intensified, critical thresholds in the loss of natural habitats are crossed. This loss of non-crop habitats can have negative feedback on crop production, because it can cause a loss of “ecosystem services” that support and regulate crop production, such as the pollination of crops by bees and the biological control of crop pests by their natural enemies. Because of this connection between non-crop habita

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6

Pisani, Gareau Tara L. "Farmscaping for conservation : factors that influence growers' conservation behavior and the potential of hedgerows for enhancing biological control services /." Diss., Digital Dissertations Database. Restricted to UC campuses, 2008. http://uclibs.org/PID/11984.

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7

Aparicio, del Moral Yahana Michelle. "Natural enemies for the conservation biological control of Myzus persicae in Mediterranean peach orchards." Doctoral thesis, Universitat Politècnica de Catalunya, 2019. http://hdl.handle.net/10803/667311.

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Peach and nectarine tree belongs to the species Prunus persica and is the third most produced fruit species in the world. Within Europe, Spain is a leading producer. Most of the crops are located in Catalonia (northeastern Spain). Peach tree is the primary host of Myzus persicae, which is one of the most damaging pests of the crop. To date, its management has mainly based on insecticides, but the risk they pose to the human health and the environment, requires a reduction in their usage. Biological control could be a good tool to improve its control because of the wide array of natural enemies

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Dobbs, Emily. "ENHANCING BENEFICIAL INSECT BIODIVERSITY AND BIOLOGICAL CONTROL IN TURF: MOWING HEIGHT, NATURALIZED ROUGHS, AND OPERATION POLLINATOR." UKnowledge, 2013. http://uknowledge.uky.edu/entomology_etds/5.

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The goal of this study was to evaluate several sustainable turf maintenance techniques for their potential to increase beneficial insect populations, which could then provide ecosystem services including pest suppression and pollination. The three techniques in question were 1) raising mowing height in commercial and residential lawns, 2) establishing naturalized roughs on golf courses, and 3) creating pollinator refuges on golf courses through the program Operation Pollinator. We found that raising mowing heights did increase populations of some predators such as spiders and staphylinids, but

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9

Vandervoet, Timothy F., and Timothy F. Vandervoet. "The Incorporation of Conservation Biological Control into the Management of Bemisia tabaci (MEAM1) in Cotton." Diss., The University of Arizona, 2016. http://hdl.handle.net/10150/621872.

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Natural enemies provide critical population regulation of many pest species, though their effects are not commonly incorporated into agricultural management decisions. Conservation biological control is an important tool that can be implemented to minimize pest damage, but applying it requires appropriate understanding of pest and natural enemy relationships. Through experimental cotton field trials, I identified predator: prey ratios based on key arthropod predators as action thresholds of the whitefly pest Bemisia tabaci MEAM1 (Dinsdale et al. 2010; equivalent to Bemisia argentifolii Bellows

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10

Prasifka, Jarrad Reed. "The role of grain sorghum in conservation of predatory arthropods of Texas cotton." [College Station, Tex. : Texas A&M University, 2004. http://hdl.handle.net/1969.1/504.

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11

Tylianakis, Jason. "Ecological enhancement of an aphid parasitoid." Thesis, University of Canterbury. Zoology, 2002. http://hdl.handle.net/10092/1309.

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Insects have become increasingly resistant to chemical control methods, while at the same time public awareness of the harmful effects of synthetic pesticides has increased. The search for more environmentally 'friendly' means of pest suppression is gaining momentum and biological control (the use of natural enemies to reduce populations of noxious organisms) has become an increasingly sought-after option. Despite an increase in the establishment rate of insect natural enemies, classical biological control of arthropods is currently no more successful than it was one hundred years ago. Ecolog

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12

Vodraska, Ellery Ala. "The influence of native plants on arthropod population dynamics can native plants enhance conservation biological control /." College Park, Md.: University of Maryland, 2008. http://hdl.handle.net/1903/8239.

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Thesis (M.S.) -- University of Maryland, College Park, 2008.<br>Thesis research directed by: Dept. of Entomology. Title from t.p. of PDF. Includes bibliographical references. Published by UMI Dissertation Services, Ann Arbor, Mich. Also available in paper.

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13

Jenkins, Paul E. "Control of the grape berry moth, Paralobesia viteana, using reduced-risk insecticides, cultural controls, and conservation of natural enemies." Diss., Connect to online resource - MSU authorized users, 2006.

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14

Wheat, Nicola M. "Patterns of parasitism and emergence in the gall midge Dasineura Dielsii (Diptera: Cecidomyiidae) : a biological control agent of Acacia cyclops in South Africa." Bachelor's thesis, University of Cape Town, 2004. http://hdl.handle.net/11427/25722.

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Acacia cyclops A. Cunn. ex G. Don is an invasive alien plant that invades fynbos and coastal dunes. Several acacia species are grown commercially in South Africa and this has limited biocontrol agents to those that reduce only reproductive capacity. Dasineura dielsii was released in 2002 as a biocontrol agent for A. cyclops. This gall-forming midge destroys inflorescences and prevents seedpods from forming, but allows continued harvesting. Insects overwinter as larvae within their galls. This study examined the levels of parasitism experienced by dormant D. dielsii larvae, as well as the trigg

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15

Ngugi, Michael Kahato [Verfasser]. "Foraging decision of aphidophagous predators and conservation biological control : a case study with syrphid antagonists / Michael Kahato Ngugi." Hannover : Technische Informationsbibliothek und Universitätsbibliothek Hannover (TIB), 2013. http://d-nb.info/1032791284/34.

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Maioralli, Camila Pozzo 1985. "Estudo da fauna de parasitoides (Insecta: Hymenoptera) associada a agroecossistema de manejo orgânico em Jaguariúna, SP." [s.n.], 2014. http://repositorio.unicamp.br/jspui/handle/REPOSIP/316151.

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Orientadores: Mohamed Ezz El-Din Mostafa Habib, João Vasconcellos Neto<br>Dissertação (mestrado) - Universidade Estadual de Campinas, Instituto de Biologia<br>Made available in DSpace on 2018-08-25T03:26:16Z (GMT). No. of bitstreams: 1 Maioralli_CamilaPozzo_M.pdf: 1303903 bytes, checksum: 6b1377da2e05d3892bdd803735875771 (MD5) Previous issue date: 2014<br>Resumo: Embora os agroecossistemas resultem da ação humana sobre os ecossistemas naturais, sua estrutura e funcionamento se matem a partir de princípios e processos ecológicos. Dadas as externalidades negativas causadas pela agricultura con

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Lawrence, Janet L. "Conservation of insect natural enemies in heterogeneous vegetable landscapes." Connect to this title online, 2004. http://rave.ohiolink.edu/etdc/view?acc%5Fnum=osu1092761676.

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Thesis (Ph. D.)--Ohio State University, 2004.<br>Title from first page of PDF file. Document formatted into pages; contains xvi, 166 p.; also includes graphics (some col.). Includes bibliographical references. Available online via OhioLINK's ETD Center.

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Begum, Mahmuda. "Habitat manipulation to enhance biological control of light brown apple moth (Epiphyas Postvittana)." Thesis, The University of Sydney, 2004. http://hdl.handle.net/2123/690.

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Trichogramma carverae Oatman and Pinto is mass-released for biological control of the leafroller pest, light brown apple moth, Epiphyas postvittana (Walker) in Australian vineyards. Parasitoid performance can, however, be constrained by a lack of suitable adult food and no information is available on the effect of nectar on the parasitism and longevity of T. carverae. To address this, the effect of alyssum, Lobularia maritima (L.) flowers on E. postvittana parasitism was studied in a vineyard experiment with and without releases of T. carverae. Egg parasitoid activity was assessed with E. post

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19

Orre, G. U. S. "'Attract and reward' : combining a floral resource subsidy with a herbivore-induced plant volatile to enhance conservation biological control." Diss., Lincoln University, 2009. http://hdl.handle.net/10182/1429.

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Experiments were conducted to assess whether a concept termed 'attract and reward' (A&R) could enhance conservation biological control (CBC). In A&R, a synthetically-produced herbivore induced plant volatile (HIPV) ('attract') is combined with a floral resource ('reward'). It is anticipated that the two will work synergistically attracting natural enemies into the crop ('attract') and maintaining them within the crop ('reward'). The study system consists of brassica, the most commonly occurring brassica herbivores, their natural enemies and higher order natural enemies. The HIPV deployed is me

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Van, Niekerk Sonnica. "The use of entomopathogenic nematodes to control citus mealybug, Planococcus citri (Hemiptera: Pseudococcidae) on citrus in South Africa." Thesis, Stellenbosch : Stellenbosch University, 2012. http://hdl.handle.net/10019.1/20147.

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Thesis (MScAgric)--Stellenbosch University, 2012.<br>ENGLISH ABSTRACT: Planococcus citri (Risso) (Hemiptera: Pseudococcidae), the citrus mealybug, is a highly destructive pest of citrus in South Africa. The ability of mealybugs to develop resistance to chemicals, as well as their cryptic nature and protective wax coverings, all individually and combined, impair the ability of insecticides to control them. Furthermore, chemicals deplete natural enemy populations that usually establish control over mealybug populations well before harvest in March to May. The inability of chemicals to control P.

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21

Imbert, Camille. "Les mécanismes de la régulation des ravageurs des légumes en verger-maraîcher PESTS, BUT NOT PREDATORS, INCREASE IN MIXED FRUIT TREE-VEGETABLE PLOTS COMPARED TO CONTROL VEGETABLE PLOTS." Thesis, Avignon, 2019. http://www.theses.fr/2019AVIG0706.

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Le verger-maraîcher est un type de parcelle diversifiée, agroforestière, associant des arbres fruitiers et des légumes. Dans ces parcelles, tout l’espace 3D disponible est utilisé pour la production de nourriture avec au sol des légumes et à différentes hauteurs des fruits. Les vergers-maraîchers sont en cela une réponse à la limitation de l’extension des surfaces agricoles. De plus, les parcelles diversifiées favorisent dans la plupart des cas la régulation des ravageurs par leurs prédateurs naturels mais les résultats semblent dépendre du contexte. L’objectif de cette thèse est de comprendre

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22

Begum, Mahmuda. "Habitat manipulation to enhance biological control of light brown apple moth (Epiphyas Postvittana)." University of Sydney. Rural Management, 2004. http://hdl.handle.net/2123/690.

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Trichogramma carverae Oatman and Pinto is mass-released for biological control of the leafroller pest, light brown apple moth, Epiphyas postvittana (Walker) in Australian vineyards. Parasitoid performance can, however, be constrained by a lack of suitable adult food and no information is available on the effect of nectar on the parasitism and longevity of T. carverae. To address this, the effect of alyssum, Lobularia maritima (L.) flowers on E. postvittana parasitism was studied in a vineyard experiment with and without releases of T. carverae. Egg parasitoid activity was assessed with E. post

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23

Walton, Angela Jasmin. "Radiation biology of Eldana saccharina Walker (Lepidoptera: Pyralidae)." Thesis, Stellenbosch : University of Stellenbosch, 2011. http://hdl.handle.net/10019.1/6685.

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24

Serrano, Ana Maria Villa. "Ecological infrastructures in sustainable olive growing: studies about Prays oleae (Bernard) and its natural enemies." Doctoral thesis, ISA-UL, 2016. http://hdl.handle.net/10400.5/12034.

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Doutoramento em Engenharia Agronómica - Instituto Superior de Agronomia - UL<br>The olive tree (Olea europaea L.) has been shaping and characterizing landscape and culture in the Mediterranean basin. This tree is attacked by pest that can cause significant losses. This thesis was focused on the conservation biological control of one of its most damaging pests: the olive moth, Prays oleae (Bernard). Naturally, a large number of parasitoid and predator species are associated to this pest, and in order to satisfy their needs they make use of ecological infrastructures occurring in the olive grove

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25

De, Waal Jeanne Yvonne. "Entomopathogenic nematodes (Rhabditida: Steinernematidae and Heterorhabditidae) for the control of codling moth, Cydia pomonella (L.) under South African conditions." Thesis, Stellenbosch : Stellenbosch University, 2008. http://hdl.handle.net/10019.1/2134.

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Thesis (MScAgric (Conservation Ecology and Entomology))--Stellenbosch University, 2008.<br>The codling moth, Cydia pomonella (L.), is a key pest in pome fruit orchards in South Africa. In the past, broad spectrum insecticides were predominantly used for the local control of this moth in orchards. Concerns over human safety, environmental impact, widespread dispersal of resistant populations of codling moth and sustainability of synthetic pesticide use have necessitated the development and use of alternative pest management technologies, products and programmes, such as the use of entomopa

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Gómez, Marco Francesc. "Integrated Pest Management of Aphis spiraecola (Hemiptera: Aphididae) in clementines: enhancing its biological control." Doctoral thesis, Universitat Politècnica de València, 2015. http://hdl.handle.net/10251/53732.

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[EN] Aphis spiraecola Patch. (Hemiptera: Aphididae) is a key pest of clementines. Biological control of A. spiraecola is still poorly known and efforts were based on the use and conservation of parasitoids but it did not success. With all this said, the aims of this thesis were: i) to disentangle the reasons behind the low parasitism of A. spiraecola; ii) to determine when and how predators can control A. spiraecola populations; and, finally, iii) to evaluate whether a ground cover of Poaceae plants can enhance the biological control of this aphid in clementines by improving the establishment

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Pumariño, Romero Lorena. "Habitat management and the use of plant-based resources for conservation biological control / Gestión del hábitat y papel de los recursos vegetales en el control biológico por conservación." Doctoral thesis, Universitat de Barcelona, 2012. http://hdl.handle.net/10803/81925.

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Modern agriculture has been focused on very intensive agricultural systems that depend on external inputs such as fertilizers or pesticides. These practices have lead to a simplification of the landscape and a decline of abundance of natural enemies. Nevertheless in the last years there has been an increasing interest in the application of more environmentally friendly techniques in agriculture, such as biological control (BC). Specifically, conservation biological control (CBC) involves the manipulation of the environment to enhance natural enemy’s effectiveness, which can be achieved by mean

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Stenekamp, Daleen. "Optimization of a mass-rearing system to produce codling moth, Cydia pomonella, for a Sterile Insect Release programme in South Africa." Thesis, Stellenbosch : University of Stellenbosch, 2011. http://hdl.handle.net/10019.1/6658.

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Thesis (PhD (Conservation Ecology and Entomology))--University of Stellenbosch, 2011.<br>ENGLISH ABSTRACT: Codling moth, Cydia pomonella, is a worldwide pest and of major economic importance to the South African pome fruit industry. Sterile insect release is applied as a component of area-wide integrated pest management and includes the mass-rearing, sterilization and the release of the sterile insects. For sterile insect release, the improvements of rearing methods in terms of the quality of the diet ingredients and the economical aspect of the rearing method are examined. The effect of

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Brichler, Kirsten Nicole. "Effects of Farm Management Practices on Pest Slugs and Slug Predators in Field Crops." Thesis, Virginia Tech, 2020. http://hdl.handle.net/10919/98469.

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Mid-Atlantic crop producers are increasingly transitioning to soil conservation methods that include reducing or eliminating tillage and planting high residue cover crops. These practices are associated with an increase in moderate to severe damage to field crops by slugs. Conserving, and even enhancing, natural enemy populations is a desirable way to manage slug infestations because remedial control measures are limited. To better understand how cover crop usage and tillage practices affect slug and natural enemy populations, 43 Virginia fields with different combinations of tillage practices

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Lami, Francesco. "Bridging applied ecology and network theory to improve landscape management for conservation." Doctoral thesis, Università degli studi di Padova, 2019. http://hdl.handle.net/11577/3423178.

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Agricultural intensification is widely considered a major threat to biodiversity and ecosystem services. To better protect biological communities, it is necessary to gain a more detailed understanding of the way species use habitats and move across increasingly simplified landscapes. Traditional landscape ecology approaches are mainly based on the dichotomy between focal semi-natural habitat patches and the surrounding agricultural matrix. While the advances made possible by the landscape mosaic model are undeniable, this approach fails to account for real-world complexity, as many species are

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Ferreira, Tiarin. "Rearing of the banded fruit weevil, Phlyctinus callosus (Schonherr) (Coleoptera: Curculionidae) and control with entomopathogenic nematodes." Thesis, Stellenbosch : University of Stellenbosch, 2010. http://hdl.handle.net/10019.1/4113.

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Thesis (MScAgric (Conservation Ecology and Entomology))--University of Stellenbosch, 2010.<br>ENGLISH ABSTRACT: The banded fruit weevil, Phlyctinus callosus (Schönherr), is a key pest of apples, nectarines and grapevines in the southern areas of the Western Cape. The control of P. callosus is not satisfactory and the insecticides used to control this insect have not proved to be effective since the development of tolerance to pyrethroids and acephate. A control method that can be used, despite it being very labour-intensive, is that of tree trunk barriers. The use of such a method will pre

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Kross, Sara Mae. "The efficacy of reintroducing the New Zealand falcon into the vineyards of Marlborough for pest control and falcon conservation." Thesis, University of Canterbury. Biological Sciences, 2012. http://hdl.handle.net/10092/6726.

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In our ever more populated world, the rapid expansion and intensification of agriculture is driving worldwide biodiversity loss, and the interactions between production landscapes and wildlife conservation are becoming increasingly important. Farming systems depend on ecosystem services such as biological control, while conservationists are calling for the establishment of conservation initiatives in non-preserve landscapes. Despite this, the goals of agriculture and the goals of predator-conservation are rarely mutual. Here, I demonstrate one of the first examples of a mutually beneficial sce

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Stokwe, Nomakholwa Faith. "Entomopathogenic nematodes : characterization of a new species, long–term storage and control of obscure mealybug, Pseudococcus viburni (Hemiptera: Pseudococcidae) under laboratory conditions." Thesis, Stellenbosch : University of Stellenbosch, 2009. http://hdl.handle.net/10019.1/2463.

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Thesis (MScAgric (Conservation Ecology and Entomology)--University of Stellenbosch, 2009.<br>ENGLISH ABSTRACT: The obscure mealybug, Pseudococcus viburni (Signoret) (Pseudococcidae), is one of the common and serious pests of apples and pears in South Africa. The management of this pest in South Africa is dominated by the use of insecticides, while research into using natural enemies for biological control of mealybugs is still ongoing. Increasing concern over the environmental impact, pesticide residues in fruits, resistance, and expense associated with frequent use of insecticides make i

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Brown, Lydia Marie, and Lydia Marie Brown. "Biology, Ecology, and Economics of Brown Stink Bug, Euschistus servus (Heteroptera: Pentatomidae), in Desert Cotton Agroecosystems." Thesis, The University of Arizona, 2017. http://hdl.handle.net/10150/625340.

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Brown stink bug, Euschistus servus (Heteroptera: Pentatomidae), is a recently re-emerged pest of cotton in Arizona. It has been present in southwestern desert-grown cotton since at least the early 1900’s, but dropped from primary pest status in the latter half of the twentieth century. Farmers and pest managers did not perceive it as a primary or economic pest until 2011, when elevated numbers of brown stink bugs were reported in isolated valleys of Arizona and southeastern California. Reports increased and became more widespread in the following years. In response to increased abundance of br

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Wahner, Nadine. "Initial investigation of Trichogrammatoidea lutea (Hymenoptera: Trichogrammatidae) as biological control agent of codling moth Cydia pomonella (Lepidoptera: Tortricidae), in apple and pear orchards, under sterile insect technique (SIT) /." Thesis, Stellenbosch : Stellenbosch University, 2008. http://hdl.handle.net/10019/2021.

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Nogueira, Carlos Henrique Feitosa. "Parasitoide Opius sp. (Hymenoptera: Braconidae) no manejo integrado da mosca minadora na cultura do meloeiro." Universidade Federal Rural do Semi-Árido, 2012. http://bdtd.ufersa.edu.br:80/tede/handle/tede/73.

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Made available in DSpace on 2016-08-12T19:15:24Z (GMT). No. of bitstreams: 1 CarlosHFN_DISSERT.pdf: 959875 bytes, checksum: f9cbf07f6dcf1050e5d484e8edd9d637 (MD5) Previous issue date: 2012-02-29<br>Coordenação de Aperfeiçoamento de Pessoal de Nível Superior<br>The states of Rio Grande do Norte and Ceará are the main producers of melons from Brazil. They account for about 90% of national production, which makes the growth of melon Cucumis melo L. one of the main segments of agribusiness in these states. Despite the high technology used for the cultivation of this vegetable crop, this crop has

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De, Waal Jeanne Yvonne. "Biological and ecological factors contributing to the successful use of entomopathogenic nematodes (Rhabditida: Steinernematidae and Heterorhabditidae) for the control of codling moth, Cydia pomonella (L.) (Lepidoptera: Tortricidae) under South African conditions." Thesis, Stellenbosch : Stellenbosch University, 2011. http://hdl.handle.net/10019.1/17893.

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Thesis (PhD)--Stellenbosch University, 2011.<br>ENGLISH ABSTRACT: Codling moth, Cydia pomonella (L.) (Lepidoptera: Tortricidae) is a devastating pest of pome fruit in temperate regions of the world. Control of this pest, previously involved the extensive use of broad-spectrum insecticides. However, concerns over human safety, environmental impact, widespread dispersal of resistant populations of codling moth and the sustainability of synthetic pesticides in agroecosystems, has encouraged the development and use of alternative environmentally-friendly pest management technologies including the

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Laffon, Ludivine. "Caractérisation des relations trophiques des communautés de parasitoïdes et de syrphes avec les plantes et les insectes ravageurs en vergers de pommiers." Electronic Thesis or Diss., Avignon, 2024. http://www.theses.fr/2024AVIG0620.

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Les syrphes aphidiphages et les hyménoptères parasitoïdes sont impliqués dans la régulation des ravageurs du pommier, notamment du puceron cendré et du carpocapse. Une fois adulte, ils s'alimentent principalement de ressources florales. Renforcer la fourniture en nectar et pollen devrait donc favoriser les syrphes et les parasitoïdes, et contribuer au contrôle biologique. L'objectif de cette thèse est de mieux comprendre la contribution des espèces végétales au service de régulation fourni par les syrphes aphidiphages et les hyménoptères parasitoïdes, en vergers de pommiers. Nos travaux s'appu

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Van, Zyl Carolina. "The in vivo production of Heterorhabditis zealandica and Heterorhabditis bacteriophora." Thesis, Stellenbosch : Stellenbosch University, 2012. http://hdl.handle.net/10019.1/20181.

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Thesis (MScAgric)--Stellenbosch University, 2012.<br>ENGLISH ABSTRACT: The agricultural industry in South Africa is dominated by the use of insecticides. Producers rely heavily on chemicals that cause increased risk to health, the environment and ecology, rapid resistance development in key insect pests and pesticide residues on crops. The increased concern regarding the impact of these pest management practices on the environment and alternative pest management strategies are being investigated. Entomopathogenic nematodes (EPNs) have been identified as being promising biological control agent

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Lixa, Alice Teodorio. "Coccinellidae (Coleoptera) usando plantas arom?ticas como s?tio de sobreviv?ncia e reprodu??o em sistema agroecol?gico, e aspectos biol?gicos em condi??es de Laborat?rio." Universidade Federal Rural do Rio de Janeiro, 2008. https://tede.ufrrj.br/jspui/handle/tede/497.

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Made available in DSpace on 2016-04-28T14:57:34Z (GMT). No. of bitstreams: 1 2008 - Alice Teodorio Lixa.pdf: 2009465 bytes, checksum: a5ff9f635d75eab4106b026e084105fb (MD5) Previous issue date: 2008-06-25<br>Coordena??o de Aperfei?oamento de Pessoal de N?vel Superior<br>Among the natural enemies of agriculture pests, the Coccinellidae predators are detached. Some coccinellids only complete their development and produce viable eggs and progenies when they consume their preferred prey. However, when this prey is scarce or in presence of a prey of low quality, certain coccinellids feed on alt

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Duffy, Michael Patrick. "Population phenology and natural enemies of paropsis atomaria Olivier (Coleoptera: Chrysomelidae) in South-East Queensland." Thesis, Queensland University of Technology, 2007. https://eprints.qut.edu.au/16467/1/Michael_Duffy_Thesis.pdf.

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Paropsis atomaria Olivier (Coleoptera: Chrysomelidae: Paropsini), is a major pest of commercially grown eucalypts in South-East Queensland. Current management of paropsine beetles involves regular inspection and the application of chemical sprays if defoliation is severe. However, non-chemical control of plantation pests is highly desirable given the requirement to certify forest practices for sustainability, and community concerns over the use of pesticides. One way of reducing pesticide use is through conservation biological control, which requires detailed knowledge of the life history o

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Duffy, Michael Patrick. "Population phenology and natural enemies of paropsis atomaria Olivier (Coleoptera: Chrysomelidae) in South-East Queensland." Queensland University of Technology, 2007. http://eprints.qut.edu.au/16467/.

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Paropsis atomaria Olivier (Coleoptera: Chrysomelidae: Paropsini), is a major pest of commercially grown eucalypts in South-East Queensland. Current management of paropsine beetles involves regular inspection and the application of chemical sprays if defoliation is severe. However, non-chemical control of plantation pests is highly desirable given the requirement to certify forest practices for sustainability, and community concerns over the use of pesticides. One way of reducing pesticide use is through conservation biological control, which requires detailed knowledge of the life history of

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Nqobizitha, Dube. "Economic evaluation of possible loss of Prosopis pods as a result of biological control in the Northern Cape Province, South Africa." Thesis, University of Fort Hare, 2009. http://hdl.handle.net/10353/394.

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Species of Prosopis (Mimosaceae), or mesquite, are native to the Americas and introduced in South Africa as agro forestry trees to provide wood, fodder and shade in the late 1800s. In the Northern Cape Province, these trees have been particularly used for their pods by local farmers and local industry. However due to Prosopis’ ability to spread rapidly there has been increasing pressure to step up control of the tree. Due to the costs associated with most control methods biological control has been singled out as the most viable control method worth pursuing. This thesis attempts to explain an

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Roketenetz, Lara Diane. "Investigation of Inter- and Intraspecific Genetic Variability of Euhrychiopsis lecontei, a Biological Control Agent for the Management of Eurasian Watermilfoil." University of Akron / OhioLINK, 2015. http://rave.ohiolink.edu/etdc/view?acc_num=akron1428434358.

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Smith, Chelsea A. "Testing an Interference Competition Hypothesis to Explain the Decline of the Convergent Lady Beetle, Hippodamia convergens (Coleoptera: Coccinellidae), in Ohio." The Ohio State University, 2012. http://rave.ohiolink.edu/etdc/view?acc_num=osu1339527346.

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Strydom, Matthys. "A perspective on the seed bank dynamics of Acacia saligna." Thesis, Stellenbosch : Stellenbosch University, 2012. http://hdl.handle.net/10019.1/20389.

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Thesis (MScConEcol)--Stellenbosch University, 2012.<br>ENGLISH ABSTRACT: Acacia saligna, or Port Jackson, is an Australian Acacia which has spread throughout the Western and Eastern Cape provinces of South Africa where it has become invasive and a prominent feature of the vegetation. In areas where A. saligna establishes it replaces natural vegetation, alters ecosystem processes and interferes with agricultural practices. Consequently large management efforts have been made to eradicate this invasive alien tree. However, its large and persistent soil stored seed bank, even in the presence

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D??VILA, Vin?cius de Abreu. "Aceita??o de polens de Apiaceae por Coleomegilla maculata DeGeer (Coleoptera: Coccinellidae) e efeito de diferentes dietas na sua biologia." Universidade Federal Rural do Rio de Janeiro, 2012. https://tede.ufrrj.br/jspui/handle/jspui/1799.

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Submitted by Jorge Silva (jorgelmsilva@ufrrj.br) on 2017-06-20T20:36:51Z No. of bitstreams: 1 2012 - Vinicius de Abreu D'?vila.pdf: 623654 bytes, checksum: 2c91585552193e53bcefc6b559fe2a2f (MD5)<br>Made available in DSpace on 2017-06-20T20:36:51Z (GMT). No. of bitstreams: 1 2012 - Vinicius de Abreu D'?vila.pdf: 623654 bytes, checksum: 2c91585552193e53bcefc6b559fe2a2f (MD5) Previous issue date: 2012-08-31<br>CAPES<br>The biological control is as important method to regulate the pest populations in a system of sustainable agricultural production, because it is a promising alternative to th

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Vaquié, Agathe. "Diversité intra- et interspécifique dans les systèmes céréaliers et ses effets sur la régulation des ravageurs." Thesis, Paris, Institut agronomique, vétérinaire et forestier de France, 2019. http://www.theses.fr/2019IAVF0008/document.

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Augmenter la diversité végétale au sein même du champ permet de réguler les populations de ravageurs dans de nombreux agroécosystèmes. Les mélanges variétaux (diversité intraspécifique) ou les associations de cultures avec une plante compagne (diversité interspécifique) sont considérées comme des pratiques agroécologiques prometteuses pour les systèmes de culture à bas intrants ou l'agriculture biologique. En effet, ces pratiques favorisent de nombreux services écosystémiques tels que la régulation des ravageurs, des maladies ou des adventices, ainsi que la fertilisation azotée. Cependant, le

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Gaigher, Rene. "The invasive ant Pheidole megacephala on an oceanic island : impact, control and community-level response to management." Thesis, Stellenbosch : Stellenbosch University, 2013. http://hdl.handle.net/10019.1/79877.

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Thesis (PhD)--Stellenbosch University, 2013.<br>ENGLISH ABSTRACT: Invasive species are among the most important global conservation threats. Their management is one of the key conservation challenges that will have to be addressed in the next few decades. The study of real invasions and their management in natural ecosystems provides an opportunity to gain important information on theoretical and applied aspects of biological invasions. This project focuses on the broader ecological context of invasive ant management in an ecologically sensitive island habitat. The thesis has three main compo

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Laubertie, Elsa. "The role of resource subsidies in enhancing biological control of aphids by hoverflies (Diptera: Syrphidae)." Diss., Lincoln University, 2007. http://hdl.handle.net/10182/984.

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In this thesis, experiments were conducted in the laboratory and the field to determine whether the provision of floral resources to hoverflies could enhance the biological control of aphids. The overall aim was to clarify hoverfly behaviour and ecology in an agroecosystem in order to understand the potential of these insects for biocontrol under a conservation biological control (CBC) regime. A preliminary experiment in New Zealand compared the effect of different coloured water-traps on catches of the hoverflies Melanostoma fasciatum (Macquart) and Melangyna novaezelandiae (Macquart). Signif

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