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Teses / dissertações sobre o tema "Beans Diseases and pests Australia"

Autor: Grafiati

Publicado: 4 de junho de 2021

Última modificação: 31 de janeiro de 2023

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1

Dennis, Jeremy Ian. "Chocolate spot of faba beans in South Australia." Title page, contents and summary only, 1991. http://web4.library.adelaide.edu.au/theses/09A/09ad411pdf.pdf.

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Bibliography: leaves 81-100. Entry of inoculum into a crop and disease development in the crop cannot be prevented because spores are airborne and there is a lack of highly resistant varieties. This makes complete control of chocolate spot unlikely. It should however, be possible to improve current levels of disease control through the integration of the factors identified in the study.

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2

Yakop, Uyek Malik. "Resistance of faba beans to Ascochyta blight." Title page, contents and summary only, 1998. http://web4.library.adelaide.edu.au/theses/09APSM/09apsmy15.pdf.

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Bibliography: leaves 111-120. This study investigated various aspects of genetic resistance in fava beans to Ascochta blight (A. fabae) with the objective to facilitate an efficient breeding strategy for long-term control. Pathogenic variability of A. fabae was found to be high, as was genetic variation between resistant fava bean accessions. A number of alternative resistance genes to that of Ascot cultivar were identified.

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3

Lawsawadsiri, Somporn. "Variation in resistance to Ascochyta blight in faba beans." Title page, contents and summary only, 1994. http://web4.library.adelaide.edu.au/theses/09PH/09phl425.pdf.

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4

Noronha, Christine M. (Christine Mary). "Effects of density and host plant type on fecundity and survival of Delia radicum (Bouché), D. Antiqua (Meigen) and D. Platura (Meigen) (Diptera: Anthomyiidae)." Thesis, McGill University, 1992. http://digitool.Library.McGill.CA:80/R/?func=dbin-jump-full&object_id=41017.

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The effects of intraspecific and interspecific competition, host plant, and prior host plant experience on fecundity, rate of oviposition and mortality of adults and larval survival of Delia radicum Bouche (Cabbage Maggot (CM)), D. antiqua Meigen (Onion Maggot (OM)), and D. platura Meigen (Seed Corn Maggot (SCM)), were studied on cabbage, onion and bean plants.<br>An optimum density for maximum fecundity per female was observed when the four experimental densities were compared. This optimum density was higher on host than on non-host plants. CM females were host specific and did not oviposit

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5

Jimenez, Garcia Emilio. "ETIOLOGY, PATHOLOGY AND CHARACTERIZATION OF VIRUSES FROM BEANS GROWING IN THE SONORA DESERT OF MEXICO (COWPEA, CHLOROTIC MOTTLE)." Diss., The University of Arizona, 1985. http://hdl.handle.net/10150/187907.

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Survey of crops of common bean (Phaseolus vulgaris L.) in Sonora, Mexico revealed the presence of two isometric viruses and one flexuous rod virus on the basis of host reaction, particle morphology, serology and physico-chemical properties. The isometric viruses were identified as Bean Southern Mosaic Virus (BSMV) and Cowpea Chlorotic Mottle Virus (CCMV); the flexuous rod virus was identified as Bean Common Mosaic Virus (BCMV). Using bean cultivar differentials, two strains of the potyvirus BCMV were identified, NY-15 and a previously undescribed strain designated YV-1. Host range, serological

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6

Ferguson, Kaye. "The biology, ecology and management of the Quandong moth, Paraepermenia santaliella (Lepidoptera: Epermeniidae)." Title page, contents and summary only, 2001. http://web4.library.adelaide.edu.au/theses/09PH/09phf3523.pdf.

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Includes bibliographical references (leaves 217-230). Details the biology and life history of the Quandong moth and investigates management strategies that would enable growers to manage the pest in an economically and environmentally sustainable program.

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7

Cieslik, Lucas Fernando. "Interferência de fatores morfoambientais e horários de aplicação de fluazifop-p-butyl e fomesafen no controle de infestantes, seletividade e lucratividade da cultura do feijoeiro (Phaseolus vulgaris L.)." Universidade Tecnológica Federal do Paraná, 2012. http://repositorio.utfpr.edu.br/jspui/handle/1/263.

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Fundação Araucária, CNPQ<br>Plantas daninhas competem com as cultivadas e dentre as influências negativas desse convívio está a redução da produtividade das culturas. O controle químico é a principal forma de gestão das infestantes na cultura do feijão (Phaseolus vulgaris L.). Sua eficácia depende de uma série de fatores, entre eles: condições ambientais (em função dos horários de aplicação) no momento da aspersão do herbicida e doses utilizadas. Um programa de pesquisa foi desenvolvido no curso de Agronomia da UTFPR, Pato Branco, PR, durante a safra 2010/11 com os objetivos gerais de analisar

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8

Machado, Adriano Bressiani. "Impacto agronômico e dano econômico da interferência entre leiteiro (Euphorbia heterophylla) e feijoeiro (Phaseolus vulgaris) em intervalos distintos de semeadura." Universidade Tecnológica Federal do Paraná, 2012. http://repositorio.utfpr.edu.br/jspui/handle/1/265.

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A cultura do feijoeiro apresenta grande importância econômica para o Brasil e especificamente para a região do Sudoeste do Paraná, onde é cultivado principalmente em pequenas e médias propriedades. Constitui-se em um dos alimentos mais ricos consumido pelo povo brasileiro, principalmente para as populações mais pobres. É imprescindível o estudo cientifico dos sistemas de produção e o avanço tecnológico para aumentar sua produtividade e rentabilidade. Entre os gargalos limitantes à cultura, está a necessidade de estudar melhor os níveis populacionais de plantas daninhas que justificam o seu con

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9

White, John Gordon. "Control of rodent damage in Australian macadamia orchard systems." Thesis, Queensland University of Technology, 1999.

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10

Bressan, Dayanne Fabrício. "Uso dos eliciadores acibenzolar-s-metílico e harpina na indução de resistência em plantas de feijoeiro comum ao crestamento bacteriano." Universidade Tecnológica Federal do Paraná, 2011. http://repositorio.utfpr.edu.br/jspui/handle/1/232.

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CAPES<br>O crestamento bacteriano comum, causado por Xanthomonas axonopodis pv. phaseoli, é uma das principais doenças da cultura do feijoeiro. Em busca por alternativas no controle de doenças em plantas, o uso de eliciadores/indutores de resistência tem sido explorado. Desta forma, o objetivo deste trabalho foi verificar a eficiência dos eliciadores harpina e acibenzolar-S-metílico na indução de mecanismos de defesa em plantas de feijoeiro (Phaseolus vulgaris L.) ao crestamento bacteriano comum, causado por X. axonopodis pv. phaseoli, avaliandose possíveis alterações no processo de trocas gas

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11

Lagos, Frank Silvano. "Uso do leite de vaca no controle do oídio em feijão-de-vagem." Universidade Tecnológica Federal do Paraná, 2009. http://repositorio.utfpr.edu.br/jspui/handle/1/239.

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A crescente procura por alimentos mais saudáveis demanda um aumento na produção isenta de agrotóxicos. O feijão-de-vagem é uma das principais olerícolas cultivadas no Brasil. Dentre as principais doenças que afetam essa cultura está o oídio, podendo ocasionar perdas de produção em até 69%, sendo de ocorrência comum em cultivos protegidos especialmente em períodos tardios. O uso do leite tem demonstrado boas perspectivas no controle desta doença em diversas culturas. Foram desenvolvidos na Universidade Tecnológica Federal do Paraná – Campus de Pato Branco – PR, nos anos de 2007 e 2008, trabalho

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12

Evans, Katherine J. "Characterization of Uncinula necator, the grapevine powdery mildew fungus." Title page, contents and abstract only, 1996. http://web4.library.adelaide.edu.au/theses/09PH/09phe924.pdf.

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Bibliography: leaves 148-166. This study identifies genetic variation in Australian Uncinula necator populations. Techniques were developed for molecular and phenotypic markers for U. necator. Mating types of Australian clonal lines were identified and viable cleistothecia and infective ascospores were produced in vitro. The study establishes the foundation for investigating the population biology of U. necator, by identifying two distinct genetic groups, A and B, and micro-geographical variation among 35 clonal lines from various Australian viticultural regions.

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13

Khan, Muhammad Shahid Akhtar. "Epidemiology of ascochyta blight of chickpea in Australia." Title page, contents and summary only, 1999. http://web4.library.adelaide.edu.au/theses/09PH/09phk4455.pdf.

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Bibliography: leaves 182-217. This study was conducted to determine the etiology of a blight disease of chickpea in south-eastern Australia and the factors affecting disease development. The disease had previously been identified as phoma blight. Pathogenicity testing revealed two isolates subsequently identified as Asochyta rabiei, the first conclusive identification in the southern hemisphere. Greenhouse screening of chickpea varieties identified types resistant to ascochyta blight. The effects of plant age and environmental conditions on disease development were investigated under controlle

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14

Nicol, Julie. "The distribution, pathogenicity and population dynamics of Pratylenchus thornei on wheat in South Australia." Title page, contents and summary only, 1996. http://web4.library.adelaide.edu.au/theses/09PH/09phn634.pdf.

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Bibliography: leaves 224-236. The study aimed to determine the distribution of both P. thornei and P. neglectus in South Australia. Also to study the field and laboratory population dynamics of P. thornei in relation to wheat yields, to determine its host range on a variety of cereal and non-leguminous hosts and to identify possible sources of nematode resistant wheat cultivars/varieties. Preliminary experiments studied the involvement of root rotting fungi with the nematode in wheat disease.

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15

Persley, Denis Michael. "Identification, epidemiology and control of Papaya ringspot virus, recently recorded in papaya (Caricus papaya) in Australia." Thesis, Queensland University of Technology, 1997. https://eprints.qut.edu.au/36937/1/36937_Persley_1997.pdf.

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Papaya (Carica papaya), originating in South America, is widely-grown throughout the tropical and sub-tropical regions of the world. The popularity and versatility of the fruit and commercial uses of papain obtained from papaya latex have made the crop an important component of cropping systems in many developing countries where 98% of production is centred. Papaya ringspot virus (PRSV) is the major limiting factor to papaya production in many countries, particularly those in SouthEast Asia and South America. Papaya ringspot disease was first detected in Queensland in 1991, with several comme

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16

Balali-Dehkordi, Gholam Reza. "Genetic variation of Rhizoctonia solani AG-3 in South Australia." Title page, contents and abstract only, 1996. http://web4.library.adelaide.edu.au/theses/09PH/09phb171.pdf.

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Three pages of addenda pasted inside back cover. Bibliography: leaves 166-189. Rhizoctonia solani is a complex species comprising morphologically basidiomycetous imperfect fungi. This study aimed to determine genetic diversity within R. solani AG-3 causing rhizoctonia disease of potato in South Australia. For this purpose, pectic zymogram, PCR, DNA fingerprinting and RFLP techniques were used in conjunction with traditional plant pathology procedures.

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17

Frost, William E. "The ecology of cereal rust mite Abacarus hystrix (Nalepa) in irrigated perennial dairy pastures in South Australia /." Title page, contents and summary only, 1995. http://web4.library.adelaide.edu.au/theses/09PH/09phf9398.pdf.

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18

Akiew, E. B. "Potato diseases in South Australia : studies in leafroll, early blight and bacterial wilt /." Title page, contents and summary only, 1985. http://web4.library.adelaide.edu.au/theses/09PH/09pha315.pdf.

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19

Hossain, Mohammad Abul. "Powdery mildew on barley : pathogen variability in South Australia : resistance genes in cv. Galleon /." Title page, contents and abstract only, 1986. http://web4.library.adelaide.edu.au/theses/09PH/09phh8287.pdf.

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20

Constable, Fiona Elizabeth. "Biology and epidemiology of Australian grapevine phytoplasmas." Title page, contents and abstract only, 2002. http://web4.library.adelaide.edu.au/theses/09PH/09phc756.pdf.

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21

Sing, Sharlene E. "Suppression of bruchids infesting stored grain legumes with the predatory bug Xylocoris flavipes (Reuter) (hemiptera: anthocoridae)." Thesis, National Library of Canada = Bibliothèque nationale du Canada, 1997. http://www.collectionscanada.ca/obj/s4/f2/dsk2/ftp04/mq29789.pdf.

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22

Taheri, Abdolhossein. "Interaction between root lesion nematode, Pratylenchus neglectus, and root-rotting fungi of wheat." Title page, contents and summary only, 1996. http://web4.library.adelaide.edu.au/theses/09PH/09pht128.pdf.

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Bibliography: leaves 307-329. This study concludes that in soils in South Australia where root-rotting fungi and P. neglectus exist together, root disease of wheat is caused by their combined effect. Evidence suggests that P. neglectus not only contributes to this interaction through mechanical wounding of roots, but also causes biochemical and physiological changes in plants, making them more prone to fungal infection.

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23

Williams, Mia Gabrielle. "Impact of environmental conditions on the infection behaviour of Western Australian strains of Plasmopara viticola, causal agent of downy mildew in grapevines." University of Western Australia. Soil Science and Plant Nutrition Discipline Group, 2006. http://theses.library.uwa.edu.au/adt-WU2006.0035.

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Downy mildew, caused by the biotrophic Oomycete Plasmopara viticola, is one of the most important diseases of grapevines world wide. It is particularly destructive in temperate viticultural regions that experience warm wet conditions during the vegetative growth of the vine (Wong et al., 2001). The disease is not normally a problem in mediterranean climates where the growing season tends to be hot and dry (Mullins et al., 1992; Sivasithamparam, 1993). Grape downy mildew is however a major disease in Australian viticulture (McLean et al., 1984; Magarey et al., 1991). Grape downy mildew was firs

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24

Lines, Rosemarie. "Development of virus resistant papaya in Australia and Vietnam." Thesis, Queensland University of Technology, 2002.

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25

Trembley, Marcella L. "The effect of mechanical weed cultivation on crop yield and quality, disease incidence and phenology in snap bean, carrot and lettuce crops." Thesis, National Library of Canada = Bibliothèque nationale du Canada, 1997. http://www.collectionscanada.ca/obj/s4/f2/dsk2/tape16/PQDD_0003/MQ29801.pdf.

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26

Lucas, Anne. "Water stress and disease development in Eucalyptus marginata (jarrah) infected with Phytophthora cinnamomi." Thesis, Lucas, Anne (2003) Water stress and disease development in Eucalyptus marginata (jarrah) infected with Phytophthora cinnamomi. PhD thesis, Murdoch University, 2003. https://researchrepository.murdoch.edu.au/id/eprint/167/.

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The south-west of Western Australia has a Mediterranean climate and flora endemic to this area, including the keystone species, jarrah (Eucalyptus marginata), have adapted to the droughted summer conditions. The introduction of an exotic soil borne pathogen, Phytophthora cinnamomi, has challenged the survival of this and many other species. The expectation might be that plants stressed by drought are more susceptible to disease and this study examined the development of disease caused by P. cinnamomi in E. marginata and the significance of water status to that development. Seedlings of E. m

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27

Lucas, Anne. "Water stress and disease development in Eucalyptus marginata (jarrah) infected with Phytophthora cinnamomi." Murdoch University, 2003. http://wwwlib.murdoch.edu.au/adt/browse/view/adt-MU20040820.13290.

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28

Huang, Chunyuan. "Mechanisms of Mn efficiency in barley." 1996, 1996. http://web4.library.adelaide.edu.au/theses/09PH/09phh8739.pdf.

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Bibliography: leaves 131-153. This thesis investigates the mechanisms of manganese (Mn) efficiency (genetic tolerance to Mn-deficient soils) in barley (Hordeum vulgare L.) at both physiological and molecular levels.

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29

Geering, Andrew D. W. "The epidemiology of cucumber mosaic virus in narrow-leafed lupins (Lupinus angustifolius) in South Australia." Title page, table of contents and summary only, 1992. http://web4.library.adelaide.edu.au/theses/09PH/09phg298.pdf.

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30

Yan, Jwo-Yee. "Studies on the behaviour of males of California red scale Aonidiella aurantii (Maskell)." Title page, contents and summary only, 1985. http://web4.library.adelaide.edu.au/theses/09A/09ay21.pdf.

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31

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.

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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.

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32

Paap, Arie Jacobus. "Development of an optical sensor for real-time weed detection using laser based spectroscopy." Thesis, Edith Cowan University, Research Online, Perth, Western Australia, 2014. https://ro.ecu.edu.au/theses/1282.

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The management of weeds in agriculture is a time consuming and expensive activity, including in Australia where the predominant strategy is blanket spraying of herbicides. This approach wastes herbicide by applying it in areas where there are no weeds. Discrimination of different plant species can be performed based on the spectral reflectance of the leaves. This thesis describes the development of a sensor for automatic spot spraying of weeds within crop rows. The sensor records the relative intensity of reflected light in three narrow wavebands using lasers as an illumination source. A proto

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33

Dennis, Jeremy Ian. "Chocolate spot of faba beans in South Australia." Thesis, 1991. http://hdl.handle.net/2440/109036.

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Entry of inoculum into a crop and disease development in the crop cannot be prevented because spores are airborne and there is a lack of highly resistant varieties. This makes complete control of chocolate spot unlikely. It should however, be possible to improve current levels of disease control through the integration of the factors identified in the study<br>Thesis (M.Ag.Sc.) -- University of Adelaide, Departments of Plant Science and Crop Protection, 1991

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34

Boudreau, Mark Alan 1958. "Effects of intercropping beans with maize on angular leaf spot and rust of beans." Thesis, 1991. http://hdl.handle.net/1957/36577.

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Experiments were performed to determine the nature of maize influence on bean disease in additive-type intercrops. Overall effects of intercrops on angular leaf spot (caused by Phaeoisariopsis griseola) in Kenya indicated >23% reductions (P<0.05) in area under the disease progress curve (AUDPC) in two of three season-site combinations. Fertilization tended to increase disease (135-205%, P<0.10), but changes in bean density or planting pattern had no effect. Intercrops reduced temperature and wind velocity, but increased relative humidity. A 27% AUDPC reduction (P=0.07) in bean rust (caused by

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35

Lawsawadsiri, Somporn. "Variation in resistance to Ascochyta blight in faba beans / Somporn Lawsawadsiri." Thesis, 1994. http://hdl.handle.net/2440/18502.

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36

Pratt, Paul D. (Paul David) 1970. "Within and between plant dispersal and distributions of adult females and immatures of Neoseiulus californicus and N. fallacis (Acari: Phytoseiidae) in bean and apple plant systems." Thesis, 1997. http://hdl.handle.net/1957/34940.

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Intra- and interplant movement and dispersal of the predator mites Neoseiulus californicus (McGregor) and Neoseiulus fallacis (Garman) were studied on both lima bean (Phaseolus lunatus L.) and apple (Malus pumila Miller) branch plant systems that were seeded with excess numbers of the spider mite Tetranychus urticae Koch. Individuals of either predator were randomly selected from colonies of well-fed, mixed-age adult females and moved to test plants. When tested separately in each plant system, median leaf positions of N. californicus from the point of release were greater than those of N. fal

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37

Tynan, K. M. (Kim Michelle). "Evaluation of Banksia species for response to Phytophthora infection." 1994. http://web4.library.adelaide.edu.au/theses/09PH/09pht987.pdf.

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38

Xu, Ling 1963. "Serological and molecular approaches for distinguishing bean common mosaic and bean common mosaic necrosis potyviruses and their respective pathogroups." Thesis, 1995. http://hdl.handle.net/1957/34991.

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Polyclonal antisera were raised against isolates of bean common mosaic virus (BCMV) and bean common mosaic necrosis virus (BCMNV) using conventional serological methods. Infected tissues containing, respectively, 22 recognized BCMV and BCMNV isolates were tested against the two antisera by antigen-coated plate (ACP) ELISA and double antibody sandwich (DAS) ELISA. Results indicated that each immunoglobulin was virus-specific by DAS-ELISA, providing clear distinction between BCMV and BCMNV. A reverse transcription, polymerase chain reaction (RT-PCR)-based assay in combination with restriction en

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39

Ferguson, Kaye. "The biology, ecology and management of the Quandong moth, Paraepermenia santaliella (Lepidoptera: Epermeniidae) / by Kaye Louisa Ferguson." Thesis, 2001. http://hdl.handle.net/2440/21957.

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Includes bibliographical references (leaves 217-230).<br>230 leaves : ill. (some col.) ; 30 cm.<br>Details the biology and life history of the Quandong moth and investigates management strategies that would enable growers to manage the pest in an economically and environmentally sustainable program.<br>Thesis (Ph.D.)--University of Adelaide, Dept. of Applied and Molecular Ecology, 2001

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40

Fourie, Deidre. "Bacterial diseases of dry beans in South Africa with special reference to common bacterial blight and its control." Thesis, 2003. http://hdl.handle.net/2263/25946.

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41

Landsberg, Jennifer Jill. "Dieback of rural eucalypts : dietary quality of foliage and insect herbivory." Phd thesis, 1986. http://hdl.handle.net/1885/143177.

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42

Barr, Andrew R. (Andrew Robert). "Strategies for the control of the foliar diseases of oats in South Australia." 1994. http://web4.library.adelaide.edu.au/theses/09PH/09phb268.pdf.

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43

Evans, Katherine J. "Characterization of Uncinula necator, the grapevine powdery mildew fungus / Katherine J. Evans." Thesis, 1996. http://hdl.handle.net/2440/18727.

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Bibliography: leaves 148-166.<br>vi, 169, [4] leaves, [20] leaves of plates : ill. (some col.) ; 30 cm.<br>This study identifies genetic variation in Australian Uncinula necator populations. Techniques were developed for molecular and phenotypic markers for U. necator. Mating types of Australian clonal lines were identified and viable cleistothecia and infective ascospores were produced in vitro. The study establishes the foundation for investigating the population biology of U. necator, by identifying two distinct genetic groups, A and B, and micro-geographical variation among 35 clonal lines

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44

Barr, Andrew Robert. "Strategies for the control of the foliar diseases of oats in South Australia / by Andrew R. Barr." 1994. http://hdl.handle.net/2440/21584.

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Bibliography: p. 410-429.<br>429 p., [20] leaves of plates : ill. (some col.), map ; 30 cm.<br>Title page, contents and abstract only. The complete thesis in print form is available from the University Library.<br>Thesis (Ph.D.)--University of Adelaide, Dept. of Plant Science, 1995?

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45

Barr, Andrew Robert. "Strategies for the control of the foliar diseases of oats in South Australia / by Andrew R. Barr." Thesis, 1994. http://hdl.handle.net/2440/21584.

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Hosseini, Reza. "A DNA-based approach to study predator-prey trophic interactions within Brassica crops : a search for predators of diamondback moth (Plutella xylostella)." 2007. http://hdl.handle.net/2440/56816.

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Title page, contents and abstract only. The complete thesis in print form is available from the University of Adelaide Library.<br>Brassica vegetables and oilseeds are economically important crops worldwide. These crops are associated with several destructive and widespread insect pests. In Australia these pests include six species, Plutella xylostella (Linnaeus), Pieris rapae (Linnaeus), Hellula hydralis Guenée, Helicoverpa punctigera (Wallengren), Brevicoryne brassicae (Linnaeus) and Myzus persicae (Sulzer), which are the focus of this research. Among them P. xylostella (diamondback moth or

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Crisp, Peter. "Sustainable control of grapevine powdery mildew (Uncinula necator Schweinitz Burrill) in vineyards in South Australia." 2004. http://hdl.handle.net/2440/59636.

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Title page, table of contents and abstract only. The complete thesis in print form is available from the University of Adelaide Library.<br>Grapevine powdery mildew, caused by the fungus Uncinula necator Schweinitz Burrill, is a major disease affecting grape yield and quality worldwide. In conventional vineyards, the disease is controlled mainly by regular applications of sulphur and synthetic fungicides, such as demethylation inhibiting fungicides (DMIs), and in organic agriculture by sulphur and canola-based oils. The impending restrictions on the use of sulphur in organic viticulture, the

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48

Crisp, Peter. "Sustainable control of grapevine powdery mildew (Uncinula necator Schweinitz Burrill) in vineyards in South Australia." Thesis, 2004. http://hdl.handle.net/2440/59636.

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Grapevine powdery mildew, caused by the fungus Uncinula necator Schweinitz Burrill, is a major disease affecting grape yield and quality worldwide. In conventional vineyards, the disease is controlled mainly by regular applications of sulphur and synthetic fungicides, such as demethylation inhibiting fungicides (DMIs), and in organic agriculture by sulphur and canola-based oils. The impending restrictions on the use of sulphur in organic viticulture, the development of resistance to DMls in Australia and elsewhere, and the demand for residue-free grapes create a need for effective alternatives

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49

Marte, Susan Plantier, University of Western Sydney, College of Health and Science, and Centre for Plant and Food Science. "Fruit-tree borer (Maroga melanostigma) : investigations on its biological control in prune trees." 2007. http://handle.uws.edu.au:8081/1959.7/31976.

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Fruit-tree borer, Maroga melanostigma (Wallengren), is a native Australian pest in many species of trees. It is of particular economic importance in prune (Prunus domestica) trees because the presence of this wood boring insect can reduce productivity by an average of 5% per tree. Large areas of orchards can be affected. There are currently no chemicals registered for control of this pest. Young, New South Wales is the second largest prune-growing district in Australia and the area most seriously affected by M. melanostigma. Prune growers in the district utilise integrated pest management and

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50

Njoki, Ng'ayu-Wanjau Beatrice. "Breeding for durable resistance to angular leaf spot (Pseudocercospora griseola) in common bean (Phaseolus vulgaris) in Kenya." Thesis, 2014. http://hdl.handle.net/10413/10701.

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Common bean (Phaseolus vulgaris L.) is an important legume crop in Kenya and is a cheap source of proteins. The small scale farmers in Kenya produce common bean under low agricultural input systems and this predisposes the crop to pests and diseases. Among the diseases, angular leaf spot (ALS) is a major constraint to common bean production and contributes to yield losses as high as 80%. The causative pathogen Pseudocercospora griseola (Sacc.) Crous & Braun is highly variable and several races have been reported. There are few common bean genotypes with resistance to this disease. Therefore br

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