Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
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Showing 1 to 9 of 9 for “"Bio-control"”.
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Bio-control of root rot disease in vanilla
… There are no fungicides registered for the control of Fusarium root rot and the only available chemical control methods are ineffective and cause serious contamination of the soil. Breeding for resistance is difficult when no dominant gene is known or where little information is available on …
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Biological control affects native vegetation and recovery potential in Theodore Roosevelt National Park, North Dakota
… spurge (Euphorbia esula L.) and treated with the bio-control agent Aphthona spp. and examined in-situ seed bank potential to predict recovery of native species. Extant vegetation and seed bank species richness, diversity, composition and community similarities were evaluated in leafy spurge …
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Welfare effects of new fire blight control methods on the U.S. apple industry
… methods of new varieties and for disease control has been widely explored throughout agriculture including the apple industry. Recent progress has been made to fight against apple fire blight, which cost the Michigan apple industry nearly $42 million in the 2000 fire blight outbreak. …
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Investigation of a quorum sensing peptide in bacillus licheniformis and its novel antifungal property
… against fungi is considered as an important bio-control opportunity to control fungal invasion of plants. Several bacterial species such as Bacillus spp. have shown the ability to inhibit fungal growth. During the screening of antagonistic bacteria against Aspergillus flavus (A. flavus), …
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Travelling waves in Lotka-Volterra competition models
… model, where the third species is treated as a bio-control agent or a bio-buffer and investigate under what conditions the third species can alter the existing competition interaction.
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Epigeal invertebrates of Yorkshire allotments: the influence of urban-rural gradient and management style
… research, particularly in relation to their biodiversity value.A questionnaire of plot-holders in east Yorkshire showed that whilst older men were still the principal plot-holders, there was reasonable interest from younger people. Respondents placed a high value on allotment wildlife, …
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The Effects of Urban Land Use on Wasps (Hymenoptera: Apocrita)
… in urban ecosystems; understanding both the biological and social aspects of urban ecosystems is needed for the sustainable management of urban ecosystems (Angold et al. 2006, Fetridge et al. 2008, Loram et al. 2008, Matteson et al. 2008, McIntyre 2000, Picket et al 2011, Pickett et al 2001, …
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The Dynamics of Natural Enemy Resistance in Aphid Populations
Many aphids harbour facultative bacterial endosymbionts that can influence aphid fitness. In Acyrthosiphon pisum (the pea aphid), the endosymbiont <i>Hamiltonella defensa</i> confers resistance to parasitism by parasitoid wasps due to the presence of the APSE bacteriophage in the …
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Active structural acoustic control of double panel systems including hierarchical control approaches
… and principles of active structural acoustic control when applied to double panel systems are investigated to determine the respective advantages and limitations of this approach. Included is the application of a novel hierarchical control approach which may reduce the controller complexity …