Zaloguj się

Gotowe bibliografie tematyczne / Pests Biological control / Rozprawy doktorskie

Kliknij ten link, aby zobaczyć inne rodzaje publikacji na ten temat: Pests Biological control.

Rozprawy doktorskie na temat „Pests Biological control”

Autor: Grafiati

Data publikacji: 4 czerwca 2021

Data aktualizacji: 31 stycznia 2023

Utwórz poprawne odniesienie w stylach APA, MLA, Chicago, Harvard i wielu innych

Wybierz rodzaj źródła:

Sprawdź 50 najlepszych rozpraw doktorskich naukowych na temat „Pests Biological control”.

Przycisk „Dodaj do bibliografii” jest dostępny obok każdej pracy w bibliografii. Użyj go – a my automatycznie utworzymy odniesienie bibliograficzne do wybranej pracy w stylu cytowania, którego potrzebujesz: APA, MLA, Harvard, Chicago, Vancouver itp.

Możesz również pobrać pełny tekst publikacji naukowej w formacie „.pdf” i przeczytać adnotację do pracy online, jeśli odpowiednie parametry są dostępne w metadanych.

Przeglądaj rozprawy doktorskie z różnych dziedzin i twórz odpowiednie bibliografie.

1

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

Pełny tekst źródła

Style APA, Harvard, Vancouver, ISO itp.

2

Linkous, Emily Kathryn. "Integrating biological control and chemical control of cabbage caterpillar pests." The Ohio State University, 2013. http://rave.ohiolink.edu/etdc/view?acc_num=osu1366362436.

Pełny tekst źródła

Style APA, Harvard, Vancouver, ISO itp.

3

Solà, Cassi Mireia. "Approaches for the biological control of stored product pests." Doctoral thesis, Universitat Autònoma de Barcelona, 2018. http://hdl.handle.net/10803/461300.

Pełny tekst źródła

Streszczenie:

Stored products include all postharvest agricultural foodstuffs that do not require refrigeration and that can be preserved for several months under proper conditions as cereal grain and other raw material or processed food. Regrettably, in the Mediterranean region, the presence of insect pests such as the internal feeders of grain: Rhyzopertha dominica (F.) (Coleoptera: Bostrichidae), Sitophilus spp. (S. granarius (L.), S. oryzae (L.) and S. zeamais (Motschulsky)) (Coleoptera: Curculionidae) and Sitotroga cerealella (Olivier) (Lepidoptera: Gelechiidae) as well as the moth usually prese

Style APA, Harvard, Vancouver, ISO itp.

4

Malek, Robert Nehme. "Novel Monitoring and Biological Control of Invasive Insect Pests." Doctoral thesis, Università degli studi di Trento, 2020. http://hdl.handle.net/11572/257781.

Pełny tekst źródła

Streszczenie:

Invasive species are alien to the ecosystem under consideration and cause economic or environmental damage or harm to human health. Two alien insects that fit this description are the brown marmorated stink bug, Halyomorpha halys and the spotted lanternfly, Lycorma delicatula. Both invaders are polyphagous pests that feed on a myriad of plant species and inflict severe crop losses. As sustainable control methods depend on the accurate monitoring of species’ invasion and involve the use of natural enemies, we addressed these two facets by exploring novel monitoring techniques and deciphering ho

Style APA, Harvard, Vancouver, ISO itp.

5

Begum, Mahmuda. "Habitat manipulation to enhance biological control of lightbrown apple moth (Epiphyas postvittana) /." Connect to full text, 2004. http://hdl.handle.net/2123/690.

Pełny tekst źródła

Style APA, Harvard, Vancouver, ISO itp.

6

Ahmad, Mahmood. "Initial frequencies of alleles for resistance to Bacillus thuringiensis toxins in field populations of Plutella xylostella and Helicoverpa armigera." Title page, contents and summary only, 1999. http://web4.library.adelaide.edu.au/theses/09PH/09pha2851.pdf.

Pełny tekst źródła

Streszczenie:

Leaves 101-104 are misnumbered. Bibliography: leaves 155-215. In this study thirteen populations of P. xylostella from crucifer growing areas of Queensland, Victoria, Tasmania, South Australia and Western Australia were surveyed for resistance to Bt (Bacillus thuringiensis) toxins using a leaf-dip bioassay method.

Style APA, Harvard, Vancouver, ISO itp.

7

Williams, Elizabeth Catherine. "Entomopathogenic nematodes as control agents of statutory insect pests." Thesis, Imperial College London, 1997. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.265978.

Pełny tekst źródła

Style APA, Harvard, Vancouver, ISO itp.

8

Tilly, Gaoh Abdouramane. "Potential of selected natural products as repellents against vertebrate pests of crops." Thesis, National Library of Canada = Bibliothèque nationale du Canada, 1999. http://www.collectionscanada.ca/obj/s4/f2/dsk2/ftp03/MQ50896.pdf.

Pełny tekst źródła

Style APA, Harvard, Vancouver, ISO itp.

9

Ramos, Olgaly. "Entomopathogenic nematodes for the biological control of stored product insect pests /." Search for this dissertation online, 2005. http://wwwlib.umi.com/cr/ksu/main.

Pełny tekst źródła

Style APA, Harvard, Vancouver, ISO itp.

10

Greenfield, Bethany Patricia Jane. "Metarhizium pathogenesis of mosquito larvae." Thesis, Swansea University, 2014. https://cronfa.swan.ac.uk/Record/cronfa42819.

Pełny tekst źródła

Style APA, Harvard, Vancouver, ISO itp.

11

Chang, Gary C. "Ecological interaction among natural enemies and its consequences for biological control /." Thesis, Connect to this title online; UW restricted, 2000. http://hdl.handle.net/1773/5205.

Pełny tekst źródła

Style APA, Harvard, Vancouver, ISO itp.

12

Neethling, Jacob van der Westhuizen. "Biologiese beheer van plantparasitiese nematodes met die swam Paecilomyces lilacinus by aartappels, sitrus en wingerd." Thesis, Stellenbosch : Stellenbosch University, 2003. http://hdl.handle.net/10019.1/53311.

Pełny tekst źródła

Streszczenie:

Thesis (MSc)--Stellenbosch University, 2003.<br>ENGLISH ABSTRACT: Paecilomyces Ii/acinus, ras 251 (geregistreer in terme van wet 36 van 1947 as Suid-Afrika se eerste natuurlike nematisiede en kommersieel beskikbaar as PI Plus) is as biologiese beheer agent getoets by aartappels en in geïntegreerde beheer programme by sitrus en wingerd teen respektiewelik Me/oidogyne species, Ty/enchu/us semipenetrans en verskeie ektoparasitiese nematodes. Die swam toon belofte vir die beheer van hierdie nematodes en het terselfdertyd nie 'n nadelige effek op nie-teiken, voordelige organismes in die grond

Style APA, Harvard, Vancouver, ISO itp.

13

Verleur, Peter Marcel. "Development of biological control strategies against sirex noctilio (Fabricius) on Sappi Forests (Ltd) Landholdings in the summer rainfall regions of South Africa." Thesis, Nelson Mandela Metropolitan University, 2009. http://hdl.handle.net/10948/1273.

Pełny tekst źródła

Streszczenie:

The commercial forest industry in South Africa is predominantly dependent on large tracts of exotic monoculture plantations. While this simplifies management practice, there is always the inherent danger posed by introduced pests and diseases. Classical biological control is usually the most effective control method against introduced exotic pests. Climatic factors and seasonal differences may negatively affect the ability of the natural enemies to establish successfully at the new location. Successful establishment of the natural enemies usually results in control over the pest within four ye

Style APA, Harvard, Vancouver, ISO itp.

14

Goble, Tarryn Anne. "Investigation of entomopathogenic fungi for control of false codling moth, Thaumatotibia leucotrata, Mediterranean fruit fly, Ceratitis capitata and Natal fruit fly, C. rosa in South African citrus." Thesis, Rhodes University, 2010. http://hdl.handle.net/10962/d1005409.

Pełny tekst źródła

Streszczenie:

The biology of key citrus pests Thaumatotibia leucotreta Meyrick (Lepidoptera: Tortricidae), Ceratitis capitata Wiedemann (Diptera: Tephritidae) and Ceratitis rosa Karsch (Diptera: Tephritidae) includes their dropping from host plants to pupate in the soil below citrus trees. Since most EP fungi are soil-borne microorganisms, the development and formulation of alternative control strategies using these fungi as subterranean control agents, targeted at larvae and pupae in the soil, can potentially benefit existing IPM management of citrus in South Africa. Thus, a survey of occurrence of entomop

Style APA, Harvard, Vancouver, ISO itp.

15

Mazahery-Laghab, Hojjatollah. "Endogenous resistance to insect pests in alfalfa : engineering for enhanced resistance." Thesis, Durham University, 1997. http://etheses.dur.ac.uk/4695/.

Pełny tekst źródła

Streszczenie:

Alfalfa (Medicago sativa) is a valuable forage crop grown throughout the World. While the crop is resistant to attack by many insect pests, it is subject to potentially severe losses through the action of several specific pests, which are adapted to alfalfa as a host. The most economically damaging of these pests is the alfalfa weevil, Hypera postica. This thesis investigates the endogenous defences of alfalfa against insects, which are responsible for its resistance to non-pest species, and develops a strategy for increasing the resistance of alfalfa towards pest species, specifically alfalfa

Style APA, Harvard, Vancouver, ISO itp.

16

Moore, Sean Douglas. "The biology of a facultative hyperparasitoid, Tetrastichus Howardi Olliff (Hymenoptera : Eulophidae), and its potential as a biocontrol agent of lepidopterous stem borers." Thesis, Rhodes University, 1993. http://hdl.handle.net/10962/d1005331.

Pełny tekst źródła

Streszczenie:

The gregarious pupal endoparasitoid, Tetrastichus howardi Olliff (Hymenoptera: Eulophidae), was introduced into South Africa as a biocontrol agent against the maize and the sorghum stem borers, Busseola fusca Fuller and Chilo partellus Swinhoe. Preovipositional behaviour, ovipositional behaviour, development, fertility, sex-ratio, and longevity were studied in the laboratory. A complex courtship behaviour was observed, however 35.3% of females were mated before emergence from the host pupa. Preoviposition period ranged from 100 mins up to 5 days. Host searching time in Petri dishes was shorter

Style APA, Harvard, Vancouver, ISO itp.

17

Adedipe, Folukemi Ebunoluwa. "Investigation of ecological behavior of two Coccinellidae beetle adults for biological control." Morgantown, W. Va. : [West Virginia University Libraries], 2009. http://hdl.handle.net/10450/10491.

Pełny tekst źródła

Streszczenie:

Thesis (M.S.)--West Virginia University, 2009.<br>Title from document title page. Document formatted into pages; contains vii, 60 p. : ill. (some col.). Includes abstract. Includes bibliographical references.

Style APA, Harvard, Vancouver, ISO itp.

18

Ludewig, Michael Hans. "The establishment of a virus free laboratory colony of Cryptophlebia leucotreta (False Codling Moth) and characterisation of Cryptophlebia leucotreta Granulovirus (CrleGV) genes." Thesis, Rhodes University, 2003. http://hdl.handle.net/10962/d1004016.

Pełny tekst źródła

Streszczenie:

Cryptophlebia leucotreta is an economically important agricultural pest throughout Sub-Saharan Africa. CrleGV has been considered as an alternative to chemical control of this pest due to its host specificity and innocuous nature towards vertebrates. A CrleGV free laboratory colony of C. leucotreta would be useful for the isolation of genotypically pure strains of the CrleGV and for virulence comparisons between isolates. It is preferable to have a full characterisation of CrleGV prior to its registration and release into the environment as a biopesticide. A laboratory colony of C. leucotreta,

Style APA, Harvard, Vancouver, ISO itp.

19

Heunis, J. M. (Juanita Maria). "The influence of synthetic pyrethroids on phytophagous mites and their natural enemies in apple orchards." Thesis, Stellenbosch : Stellenbosch University, 1992. http://hdl.handle.net/10019.1/69805.

Pełny tekst źródła

Streszczenie:

Thesis (MSc)--Stellenbosch University, 1992.<br>One copy microfiche.<br>ENGLISH ABSTRACT: The effects of synthetic pyrethroids on the spider mite, Tetranychus urticae Koch, and its natural enemies was investigated. The pyrethroid cyfluthrin, sprayed for the control of fruit weevil Phlyctinus callosus, did not cause mite outbreaks and was not harmful to the predators when sprayed before they appeared on the apple trees. This spray also gave good control of thrips, bollworm (Heliothis armigera) and fruit weevil (P. callosus). A late season spray of deltamethrin against codling moth, cause

Style APA, Harvard, Vancouver, ISO itp.

20

Mdlangu, Thabisa Lynette Honey. "Influence of mite predation on the efficacy of the gall midge Dasineura sp. as a biocontrol agent of Australian myrtle Leptospermum laevigatum (Myrtaceae) in South Africa." Thesis, University of Fort Hare, 2010. http://hdl.handle.net/10353/272.

Pełny tekst źródła

Streszczenie:

Dasineura sp. is a gall forming midge that was introduced into South Africa for the biocontrol of the Australian myrtle, Leptospermum laevigatum. It causes galls on both the vegetative and reproductive buds of the plant. Although Dasineura sp. was initially regarded as a potentially successful agent, galling up to 99 percent of the buds of the host plant, it has been preyed on by native opportunistic mites, which caused a decline in the performance of the midge as a biocontrol agent of L. laevigatum. This raised a concern about whether this fly will be able to perform effectively in the presen

Style APA, Harvard, Vancouver, ISO itp.

21

Moore, Gareth Ryan. "The role of nutrients in the biological control of water lettuce, Pistia stratiotes lamarck (Araceae) by the leaf-feeding weevil, Neohydronomus affinis Hustache (Coleoptera: Curculionidae) with particular reference to eutrophic conditions." Thesis, Rhodes University, 2006. http://hdl.handle.net/10962/d1005447.

Pełny tekst źródła

Streszczenie:

Water lettuce, Pistia stratiotes Lamarck (Araceae) is a South American plant that has the potential to be a very damaging and important aquatic weed in many tropical countries, including South Africa. It has the potential to rapidly multiply vegetatively and completely cover watercourses in a very short space of time outside of its natural range under ideal conditions and without its natural enemies. In such instances, the weed may cause hindrances to water transport and fishing, increasing chances of malaria, as well as affecting the natural ecology of the system. Water lettuce can also set s

Style APA, Harvard, Vancouver, ISO itp.

22

Helvering, Leah M. "Cloning of genes encoding larvicidal proteins from Bacillus thuringiensis subsp. israelensis into the cyanobacterial hybrid vector, pTNTV." Virtual Press, 1989. http://liblink.bsu.edu/uhtbin/catkey/562782.

Pełny tekst źródła

Streszczenie:

Bacillus thuringiensis subsp. isrealensis (B.t.i.) produces a crystalline endotoxin specific for some larvae of mosquitoes that are vectors of the malaria parasite and other infectious diseases. Fragments were obtained from the 108 kb plasmid from B.t.i. strain 4Q2 which encodes several proteins comprising the delta-endotoxin. These DNA fragments were inserted into the hybrid cyanobacterial cloning vector, pTNTV, downstream from its powerful lambda promoter, and the chimaeras were transformed into Escherichia coli. Ampicillin resistant transformants were screened with radioactively labelled ol

Style APA, Harvard, Vancouver, ISO itp.

23

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.

Znajdź pełny tekst źródła

Style APA, Harvard, Vancouver, ISO itp.

24

Godin, Claude 1970. "Seasonal occurrence and parasitism of lepidopterous pests of crucifers, and host age selection by a potential control agent: Trichogramma." Thesis, McGill University, 1997. http://digitool.Library.McGill.CA:80/R/?func=dbin-jump-full&object_id=27327.

Pełny tekst źródła

Streszczenie:

During a two years study (1993-1994) in southwestern Quebec, Artogeia rapae and Plutella xylostella were found to be the most important lepidopterous pests of cruciferous crops, followed by Trichoplusia ni and four minor species. The relationship between plant sampling and the use of degree-days, pheromone traps (P. xylostella) or butterflies counts (A. rapae) was assessed for A. rapae and P. xylostella. Three generations of A. rapae were observed annually, with a duration of 319.7 degree-days above $ rm 10 sp circ C (DD sb{10}),$ while P. xylostella had three to four generations with a durati

Style APA, Harvard, Vancouver, ISO itp.

25

Bueno, Nádia Maebara [UNESP]. "Bases biológicas para utilização de Trichospilus diatraeae (Hymenoptera: Eulophidae) para controle de Helicoverpa armigera (Lepidoptera: Noctuidae)." Universidade Estadual Paulista (UNESP), 2015. http://hdl.handle.net/11449/131920.

Pełny tekst źródła

Streszczenie:

Made available in DSpace on 2015-12-10T14:22:34Z (GMT). No. of bitstreams: 0 Previous issue date: 2015-07-23. Added 1 bitstream(s) on 2015-12-10T14:28:41Z : No. of bitstreams: 1 000853174.pdf: 327916 bytes, checksum: 8b80e5d10c5f87704a801b1cac7b55a1 (MD5)<br>A espécie Helicoverpa armigera Hübner (Lepidoptera: Noctuidae) é um inseto polífago, com ampla distribuição geográfica e considerada uma importante praga nas regiões do mundo em que ocorre. Na safra 2013/2014, a presença desse lepidóptero foi registrada pela primeira vez no Brasil, acarretando em perdas de produtividade. Essa espécie pos

Style APA, Harvard, Vancouver, ISO itp.

26

Bueno, Nádia Maebara 1988. "Bases biológicas para utilização de Trichospilus diatraeae (Hymenoptera: Eulophidae) para controle de Helicoverpa armigera (Lepidoptera: Noctuidae) /." Botucatu, 2015. http://hdl.handle.net/11449/131920.

Pełny tekst źródła

Streszczenie:

Orientador: Regiane Cristina Oliveira de Freitas Bueno<br>Coorientador: Carlos Frederico Wilcken<br>Banca:Everton Pires Soliman<br>Banca: Valmir Antonio Costa<br>Resumo: A espécie Helicoverpa armigera Hübner (Lepidoptera: Noctuidae) é um inseto polífago, com ampla distribuição geográfica e considerada uma importante praga nas regiões do mundo em que ocorre. Na safra 2013/2014, a presença desse lepidóptero foi registrada pela primeira vez no Brasil, acarretando em perdas de produtividade. Essa espécie possui diversas características que a tornam de indiscutível importância, como o fato de dispe

Style APA, Harvard, Vancouver, ISO itp.

27

Coombes, Candice Anne. "Entomopathogenic fungi for control of soil-borne life stages of false codling moth, Thaumatotibia leucotreta (Meyrick) (1912) (Lepidoptera: Tortricidae)." Thesis, Rhodes University, 2013. http://hdl.handle.net/10962/d1002057.

Pełny tekst źródła

Streszczenie:

False codling moth (FCM), Thaumatotibia leucotreta is an extremely important pest of citrus in South Africa and with the shift away from the use of chemicals, alternate control options are needed. One avenue of control which has only recently been investigated against the soil-borne life stages of FCM is the use of entomopathogenic fungi (EPF). In 2009, 12 entomopathogenic fungal isolates collected from South African citrus orchards showed good control potential during laboratory conducted bioassays. The aim of this study was to further analyse the potential of these isolates through concentra

Style APA, Harvard, Vancouver, ISO itp.

28

Calabuig, Gomar Altea. "Ants, pests and natural enemies in Mediterranean citrus. Ecological interactions and practical implications for biological control." Doctoral thesis, Universitat Politècnica de València, 2016. http://hdl.handle.net/10251/54122.

Pełny tekst źródła

Streszczenie:

[EN] Ants constitute an important component of the citrus agroecosystem fauna acting simultaneously as predators and as hemipteran mutualists. Thus, ants in citrus are in the center of a complex food web affecting the composition and the population dynamics of a wide arthropod community including honeydew and non-honeydew producing herbivores as well as their natural enemies. In eastern Spain the most abundant and widespread ant species are the natives Lasius grandis Forel and Pheidole pallidula (Nylander), whereas the invasive Linepithema humile (Mayr) is also present but not widespread. We h

Style APA, Harvard, Vancouver, ISO itp.

29

Opoku-Debrah, John Kwadwo. "Geographic variation in the susceptibility of false colding Moth, Thaumatotibia Leucotreta, populations to a granulovirus (CrleGV-SA)." Thesis, Nelson Mandela Metropolitan University, 2008. http://hdl.handle.net/10948/984.

Pełny tekst źródła

Streszczenie:

The false codling moth (FCM), Thaumatotibia (=Cryptophlebia) leucotreta (Meyrick) (Lepidoptera: Tortricidae) is a serious pest of citrus and other crops in Sub-Saharan Africa. The introduction of the Cryptophlebia leucotreta granulovirus (CrleGV-SA) Cryptogran and Cryptex (biopesticides) has proven to be very effective in the control of FCM. However, markedly lower susceptibility of some codling moth (CM), Cydia pomonella (L.) populations to Cydia pomonella granulovirus (CpGV-M), another granulovirus product used in the control of CM’s in Europe have been reported. Genetic differences between

Style APA, Harvard, Vancouver, ISO itp.

30

Kirkman, Wayne. "Understanding and improving the residual efficacy of the cryptophlebia leucotreta granulovirus (Cryptogran)." Thesis, Rhodes University, 2008. http://hdl.handle.net/10962/d1005482.

Pełny tekst źródła

Streszczenie:

False codling moth (FCM), Thaumatotibia (=Cryptophlebia) leucotreta (Meyr) (Lepidoptera: Tortricidae), is one of the most important pests on citrus. The Cryptophlebia leucotreta granulovirus (CrleGV) has been developed into a successful biological control agent, registered under the name Cryptogran, and is currently the preferred product for the control of FCM on citrus in South Africa. A prerequisite to the continued success of Cryptogran as a means of controlling false codling moth is to understand the factors affecting field persistence of the virus, and to find ways to improve it. The aim

Style APA, Harvard, Vancouver, ISO itp.

31

Moore, Sean Douglas. "The development and evaluation of Cryptophlebia Leucotreta granulovirus (CrleGV) as a biological control agent for the management of false codling moth, Cryptophlebia Leucotreta, on citrus." Thesis, Rhodes University, 2003. http://hdl.handle.net/10962/d1004001.

Pełny tekst źródła

Streszczenie:

A granulovirus isolated from Cryptophlebia leucotreta larvae was shown through restriction endonuclease analysis to be a novel strain (CrleGV-SA). No more than one isolate could be identified from a laboratory culture of C. leucotreta. However, a preliminary examination of restricted DNA profiles of isolates from different geographical regions indicated some minor differences. In surface dose bioassays on artificial diet, LC50 and LC90 values with neonate larvae were estimated to be 4.095 x 103 OBs/ml and 1.185 x 105 OBs/ml respectively. LT50 and LT90 values with neonate larvae were estimated

Style APA, Harvard, Vancouver, ISO itp.

32

Cormier, Daniel. "Seasonal and chemical ecology of Anaphes listronoti and A. victus (Hymenoptera:Mymaridae), egg parasitoids of the carrot weevil, Listronotus oregonensis (Coleoptera:Curculionidae), in central Ontario." Thesis, McGill University, 1998. http://digitool.Library.McGill.CA:80/R/?func=dbin-jump-full&object_id=34935.

Pełny tekst źródła

Streszczenie:

The carrot weevil, Listronotus oregonensis (LeConte) (Coleoptera: Curculionidae), is an insect pest in carrot production in Ontario. The aim of this study was to survey the egg parasitoids attacking the carrot weevil in carrot fields in Ontario, and elucidate the seasonal and chemical ecology of these natural enemies.<br>Field surveys were conducted during three years in commercial carrot fields in the Holland Marsh and district marshes to detect the presence of carrot weevil egg parasitoids, to determine their geographical distribution and to evaluate the effect of insecticides on the rate of

Style APA, Harvard, Vancouver, ISO itp.

33

Santos, Laís da Conceição dos. "Uso de coentro e sorgo granífero em cultivo de tomate orgânico visando ao aumento de insetos predadores e polinizadores /." Jaboticabal, 2016. http://hdl.handle.net/11449/139504.

Pełny tekst źródła

Streszczenie:

Orientador: Francisco Jorge Cividanes<br>Coorientador: Terezinha Monteiro dos Santos Cividanes<br>Banca: Melissa Vieira Leite<br>Banca: Roberto Botelho Ferraz Branco<br>Banca: José Carlos Barbosa<br>Banca: Guilherme Duarte Rossi<br>Abstract: The objective of this study was to evaluate the effects of the strategy "push-pull" using sorghum plants (Sorghum bicolor L.) and coriander (Coriandrum sativum L.) on pests insect and predators and evaluate the abundance and species richness of Coleoptera, Hemiptera and bees in organic tomato. The experiment consisted of two treatments: a) polyculture; b)

Style APA, Harvard, Vancouver, ISO itp.

34

Haas, Jucelaine. "Toxicidade de extratos vegetais ao percevejo bronzeado do eucalipto Thaumastocoris peregrinus (hemiptera: heteroptera: thaumastocoridae) e organismos não-alvo." Universidade Tecnológica Federal do Paraná, 2015. http://repositorio.utfpr.edu.br/jspui/handle/1/1628.

Pełny tekst źródła

Streszczenie:

CAPES; CNPq<br>Thaumastocoris peregrinus (Hemiptera: Thaumastocoridae) é um inseto originário da Austrália que está causando sérios danos à cultura do eucalipto ao redor do mundo. Ao alimentar-se da seiva das folhas, causa seu bronzeamento, podendo levar à desfolha. Medidas de controle estão sendo estudadas e a mais promissora é o parasitoide de ovos Cleruchoides noackae (Hymenoptera: Mymaridae). Produtos alternativos a base de compostos provenientes de plantas com potencial inseticida também poderiam ser uma ferramenta importante, e talvez serem utilizados concomitantemente com o parasitoide,

Style APA, Harvard, Vancouver, ISO itp.

35

Smith, Ethan A. "Is everything connected? following the predators, pests, and plants within a no-till, western Montana agroecosystem /." CONNECT TO THIS TITLE ONLINE, 2006. http://etd.lib.umt.edu/theses/available/etd-12212006-142245/.

Pełny tekst źródła

Style APA, Harvard, Vancouver, ISO itp.

36

Passerini, Julien. "Field and laboratory trials in Mali to determine the effects of neem extracts on three millet pests, Heliocheilus albipunctella De Joannis (Lepidoptera: Noctuidae), Coniesta ignefusalis Hampson (Lepidoptera: Pyralidae) and Kraussaria angulifera Krauss (Orthoptera: Acrididae)." Thesis, McGill University, 1991. http://digitool.Library.McGill.CA:80/R/?func=dbin-jump-full&object_id=60451.

Pełny tekst źródła

Streszczenie:

Formulations of aqueous neem extracts were sprayed in field experiments. Results showed that a 0.5% and 1% concentrations were effective in reducing grasshopper feeding and diminishing damage caused by the millet stemborer, C. ignefusalis. In 1988, neem diminished egg-laying and mine damage by the headminer, H. albipunctella, but no data were available for 1989 because of the low infestation levels of this pest.<br>Neem exhibited some systemic activity. Soil applied neem kernel powder partially protected millet against K. angulifera and C. ignefusalis. Neem treated plots yielded more grain and

Style APA, Harvard, Vancouver, ISO itp.

37

Er, Mehmet Kubilay. "Studies on the microbial control of pastureland leatherjackets (Tipula spp. Tipulidae: Diptera)." Thesis, University of Newcastle Upon Tyne, 2001. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.327215.

Pełny tekst źródła

Style APA, Harvard, Vancouver, ISO itp.

38

Mekonnen, Tadele Tefera, and Tadele Tefera. "Biological control potential of the spotted stem borer Chilo partellus (Swinhoe) (Lepidoptera: Crambidae) with the entomopathogenic fungi Beauveria bassiana and Metarhizium anisopliae." Thesis, Stellenbosch : University of Stellenbosch, 2011. http://hdl.handle.net/10019.1/16063.

Pełny tekst źródła

Streszczenie:

Thesis (PhD (Agric))--University of Stellenbosch, 2004.<br>ENGLISH ABSTRACT: Biological control studies were conducted with isolates of entomopathogenic fungi Beauveria bassiana and Metarrhizium anisopliae from Ethiopia and South Africa against the spotted stem borer Chilo partellus. The study was conducted from April 2002 to April 2003, at the department of Entomology and Nematology, University of Stellenbosch, South Africa. The objectives were to screen these isolates for pathogenicity and to determine the susceptibility of different larval instars; to study the effect of temperature o

Style APA, Harvard, Vancouver, ISO itp.

39

Alfaro, Lemus Ana Lilia. "Factors influencing the control of citrophilous mealybug Pseudococcus calceolarie (Maskell) by Coccophagus gurneyi Compere in the Riverland of South Australia." Title page, contents and abstract only, 2001. http://web4.library.adelaide.edu.au/theses/09IM/09iml562.pdf.

Pełny tekst źródła

Streszczenie:

Includes bibliographical references (leaves 102-114) The highly successful biological control of the citrophilous mealybug Pseudococcus calceolarie (Maskell) (CM) by the parasitic wasp Coccophagus gurneyi Compere in several countries led to the release of this parasitoid in the Riverland of South Australia as part of an integrated pest management program. However CM has not been successfully controlled in this region. The results of this study may help to explain the lack of effective biological control of CM in Riverland citrus.

Style APA, Harvard, Vancouver, ISO itp.

40

Ceballo, Flor Angel Aquino. "An investigation into why coccidoxenoides peregrinus (timberlake) (hymenoptera:encyrtidae) is an effective biological control agent in Queensland citrus /." St. Lucia, Qld, 2001. http://www.library.uq.edu.au/pdfserve.php?image=thesisabs/absthe16498.pdf.

Pełny tekst źródła

Style APA, Harvard, Vancouver, ISO itp.

41

Madire, Lulama Gracious. "Suitability of the leaf-mining fly, Pseudonapomyza sp. (Diptera: Agromyzidae), for biological control of Tecoma stans L. (Bignoniaceae) in South Africa." Thesis, University of Fort Hare, 2010. http://hdl.handle.net/10353/255.

Pełny tekst źródła

Streszczenie:

Tecoma stans (L.) Juss. Ex Kunth (Bignoniaceae) also known as yellow bells, has a native distribution from Northern Argentina, central America, Mexico and the Southern USA. In many warm climatic regions of the world, T. stans is commonly planted as an ornamental plant because of its yellow flowers, hence the name yellow bells, and pinnate foliage. As a result, this evergreen shrub has wide distribution in the tropical and subtropical parts of the western hemisphere. As is the case in many other parts of the world, T. stans was introduced into South Africa as an ornamental plant, but escaped cu

Style APA, Harvard, Vancouver, ISO itp.

42

Kabir, Nasreen Zahan. "Selection of effective antagonists against Rhizoctonia solani (AG-3), the causal agent of Rhizoctonia disease of potato." Thesis, McGill University, 1996. http://digitool.Library.McGill.CA:80/R/?func=dbin-jump-full&object_id=27351.

Pełny tekst źródła

Streszczenie:

Rhizoctonia solani (AG-3), the causal agent of Rhizoctonia disease of potato, overwinters as sclerotia on potato tubers. To develop a biocontrol strategy based on the prevention of the sclerotial germination, an isolation of microorganisms colonizing sclerotia of infected potato tubers (cultivars Norland, Atlantic and Souris), was conducted. In vitro screening was used to select effective antagonistic fungi against Rhizoctonia solani. Fifty fungal isolates were selected in order to cover all identified genera and potato variety and examined for their ability to inhibit germination of sclerotia

Style APA, Harvard, Vancouver, ISO itp.

43

Ordon, Violetta. "Field evaluation of fungal antagonists for the reduction of inoculum of Venturia inaequalis (Cke.) Wint." Thesis, McGill University, 1998. http://digitool.Library.McGill.CA:80/R/?func=dbin-jump-full&object_id=21616.

Pełny tekst źródła

Streszczenie:

The use of a biofungicide on the perfect stage of V. inaequalis on leaf litter is one potential way to reduce the number of fungicides used to control apple scab. The previous in vitro screenings of Quebec mycoflora have shown that several isolates are able to significantly reduce the primary inoculum of the pathogen. Among the screened fungi, P176A and P130A, reduced over 98% of the ascospore production and were as effective as Athelia bombacina. However, because in vitro tests are generally poor predictors of in vivo assays a re-evaluation of the antagonists was done under field conditions.

Style APA, Harvard, Vancouver, ISO itp.

44

Saade, Fabienne Eugenie Joseph. "Evaluation of strains of Bacillus thuringiensis as biological control agents of the adult stages of the carrot weevil, Listronotus oregonensis (Coleoptera:Curculionidae)." Thesis, McGill University, 1993. http://digitool.Library.McGill.CA:80/R/?func=dbin-jump-full&object_id=67541.

Pełny tekst źródła

Streszczenie:

Strains of Bacillus thuringiensis active against Coleoptera were evaluated for toxicity against the adult stage of the carrot weevil, Listronotus oregonensis. Mortality and frass bioassays using a suitable semi-artificial diet showed strains A30, A429 and BTT to be highly toxic. Mortality persisted after initial exposure to the bacteria with the survivors not resuming normal feeding. Attempts to reisolate B. thuringiensis from the insects revealed B. thuringiensis-like organisms in the gut and in/on other structures. At the midgut pH of the insect (pH 8.0), the crystals of the toxic strains we

Style APA, Harvard, Vancouver, ISO itp.

45

Cournoyer, Michel 1976. "Host selection behavior of the adult parasitoid Microctonus hyperodae Loan (Hymenoptera:Braconidae:Euphorinae) and the egg parasitoid Anaphes victus Huber (Hymenoptera:Mymaridae), parasitoids of the carrot weevil, Listronotus oregonensis LeConte (Coleoptera:Curculionidae)." Thesis, McGill University, 2003. http://digitool.Library.McGill.CA:80/R/?func=dbin-jump-full&object_id=80244.

Pełny tekst źródła

Streszczenie:

The carrot weevil, Listronotus oregonensis LeConte (Coleoptera: Curculionidae), is an important pest of carrot in northeastern North America. The objective of this study was to determine the host selection stimuli used by two L. oregonensis parasitoids: the adult parasitoid Microctonus hyperodae Loan and the egg parasitoid Anaphes victus Huber.<br>In the first chapter, the response of M. hyperodae females to various odor components from potential hosts and host plants was tested with a Y-olfactometer.<br>In the second chapter, the effect of L. oregonensis adult sex, feces and movement o

Style APA, Harvard, Vancouver, ISO itp.

46

Philion, Vincent. "The screening of potential fungal antagonists of pseudothecial formation by the apple scab pathogen : Venturia inaequalis." Thesis, McGill University, 1994. http://digitool.Library.McGill.CA:80/R/?func=dbin-jump-full&object_id=22791.

Pełny tekst źródła

Streszczenie:

In 1992, a research program was initiated to select suitable antagonists against the saprophytic (or winter) phase of the apple scab pathogen, Venturia inaequalis. An improved method for the mass screening of a vast collection of fungi was developed for this purpose. Some of the previously reported criteria such as leaf rheology and overwintering structure production proved unreliable or fastidious and cannot be used for in vitro antagonist selection. The main antagonism selection criterium retained was the in vitro inhibition of ascospore formation. To measure ascospore production, a simplifi

Style APA, Harvard, Vancouver, ISO itp.

47

Sartini. "The effect of inoculum density, virulency, and carrier systems of phoma sp. on biological control of giant foxtail (setaria faberi hermm.)." Virtual Press, 1995. http://liblink.bsu.edu/uhtbin/catkey/955092.

Pełny tekst źródła

Streszczenie:

The effect of spore titer, virulency, and carrier systems on biological control of giant foxtail (Setaria faberi hermm.) with a species of Phoma isolated from this weed wereinvestigated. The lowest concentration of Phoma conidia which significantly affected (lowered) growth of giant foxtail was 1x106 conidia/ml. In conducting Koch's postulates, all but one (FF2) of the Phoma, isolates tested infected giant foxtail. Isolates FF1 and FF9 were the most virulent against giant foxtail. No correlation was apparent between virulency and fungus germination rate. No visible difference occurred with in

Style APA, Harvard, Vancouver, ISO itp.

48

Magalhães, Gustavo Oliveira de. "Aspectos biológicos de Plutella xylostella (Linnaeus, 1758) (Lepidoptera: Plutellidae) e estratégias para o manejo da praga /." Jaboticabal, 2016. http://hdl.handle.net/11449/142829.

Pełny tekst źródła

Streszczenie:

Orientador: Sergio Antonio De Bortoli<br>Banca: Fernando Hercos Valicente<br>Banca: Roberto Marchi Goulart<br>Banca: Ricardo Antonio Polanczyk<br>Banca: Nilza Maria Martinelli<br>Resumo: O objetivo deste trabalho foi avaliar a biologia de linhagens de P. xylostella em criações para fins de pesquisa e verificar o efeito de B. thuringiensis sobre P. nigrispinus em associação de métodos para o manejo da praga em ambiente protegido. As larvas de P. xylostella foram coletadas em Brassica oleracea var. italica - brócolis Piracicaba, e mantidas em Brassica oleracea var. acephala - couve Manteiga híbr

Style APA, Harvard, Vancouver, ISO itp.

49

Lima, Fernanda Blauth de. "Secretômica de Trichoderma atroviride e Trichoderma harzianum frente a Guignardia e citricarpa, agente etiológico da Pinta Preta dos Citros." reponame:Repositório Institucional da UCS, 2016. https://repositorio.ucs.br/handle/11338/1141.

Pełny tekst źródła

Streszczenie:

Os agentes de controle biológico têm recebido grande reconhecimento, e o seu uso tem contribuído como um complemento ou substituição de agroquímicos. No entanto, existem poucos estudos sobre o controle biológico da Pinta Preta dos Citros, causada pelo fungo Guignardia citricarpa, o que impede o seu mercado in natura, além de prejudicar a sua exportação pelo uso intensivo de insumos químicos para controlar este patógeno. Os fungos do gênero Trichoderma são agentes de controle utilizados em todo o mundo contra vários fitopatógenos relevantes. Este estudo visou identificar proteínas extracelulare

Style APA, Harvard, Vancouver, ISO itp.

50

Smith, Risa Barbara. "Plant size, resource concentration and natural enemies : a comparison of four herbivores in monocultures of brussels sprouts and dicultures of brussels sprouts/peppermint." Thesis, University of British Columbia, 1990. http://hdl.handle.net/2429/30791.

Pełny tekst źródła

Streszczenie:

This thesis was designed to address three seldom studied aspects of the relationship between herbivores and vegetational diversity. 1. Interactions between vegetational diversity and herbivore mortality due to predation were assessed by experimentally manipulating both the species diversity of plants and the densities of a common generalist predator, the spider Enoplagnatha ovata. 2. The importance of plant size to herbivore densities was examined by quantifying plant size (measured as plant height, width, leaf area and growth rates) and adjusting for it through covariate analysis. 3. Differen

Style APA, Harvard, Vancouver, ISO itp.

Oferujemy zniżki na wszystkie plany premium dla autorów, których prace zostały uwzględnione w tematycznych zestawieniach literatury. Skontaktuj się z nami, aby uzyskać unikalny kod promocyjny!