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 13 of 13 for “"semiochemical"”.
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Linking Semiochemical Ecology and Spatial Dynamics to Improve Integrated Pest Management of Striped Cucumber Beetle, Acalymma vittatum
… dissertation examined striped cucumber beetle semiochemical attraction, spatial capture patterns, baited-trap operating range, and early-season perimeter trap deployment to inform future selective semiochemical-based management strategies. The first study compared semiochemical lures for …
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Use of solid-phase microextraction to detect semiochemicals in synthetic and biological samples
… microextraction (SPME) at identifying semiochemicals (chemical messengers) in both synthetic and biological samples. Solid-phase microextraction, an alternative to traditional sample fractionation, employs specialized polymer fibers to detect molecules in a sample’s headspace. …
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Investigations of the integrated pest management of Colorado potato beetle, Leptinotarsa decemlineata (Say): Host plant preference, development of semiochemical-based strategies, and evaluation of a novel insecticide
Exploiting the chemical ecology of an insect can unveil novel strategies for its pest management. Though much has been learned about the chemical ecology of Colorado potato beetle (CPB), Leptinotarsa decemlineata (Say) (Coleoptera: Chrysomelidae), a major pest of solanaceous crops in the U.S., …
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Pheromones, nectar, and computer vision: investigating large-scale patterns of chemodiversity.
… hypotheses regarding global patterns of insect semiochemical diversity, and discuss methods for rapidly and scalably monitoring insect biodiversity using machine learning. Chapter 1 builds a framework for understanding large scale patterns of chemodiversity. Here I apply ideas from information …
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Response of Stomoxys calcitrans and Musca domestica (Diptera: Muscidae) to Volatile Organic Compound Profiles from Ontario, Canada Dairy Farms
… and temporal conditions. Exploring potential semiochemical targets that impact host-parasite interactions, at livestock facilities, can give insight in creating novel integrated pest management (IPM) approaches. We have sampled Volatile Organic Compounds (VOCs) at dairy farms in Southern …
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Aggregation, dispersal and edge behavior of the bark beetle predator Thanasimus dubius (Coleoptera: Cleridae); potential use in biological control
… which allowed the testing of a wider range of semiochemicals (frontalin, ipsenol, ipsdienol, sulcatol, and α-pinene). A final wind tunnel experiment tested the ability of naive predators to learn two prey pheromones, frontalin and ipsenol, that were presented alone or associated with a reward. …
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Integrated pest management of the banana weevil, Cosmopolites sordidus (Germar), in South Africa
… of the insect, determine the potential of semiochemical mass trapping, elucidate the efficacy of cultural and chemical control methods and establish economic thresholds for the banana weevil on Cavendish bananas in South Africa. Pest status of the insect is variable around the world, and …
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Fielding a strong defense: optimizing the effectiveness of pheromone-based lures for detection of cerambycid beetles
Submission original under an indefinite embargo labeled 'Open Access'. The submission was exported from vireo on 2022-11-11 without embargo terms
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Species-specific blends of shared pheromone components prevent cross attraction among sympatric species of cerambycid beetles (subfamily Lamiinae)
Research over the last decade has revealed extensive pheromonal parsimony within the large beetle family Cerambycidae, with closely related species producing the same or very similar pheromone components. Sympatric species in the subfamily Cerambycinae, that share pheromone components, are known to …
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Southern pine beetle, Dendroctonus frontalis Zimmermann (Coleoptera: Scolytidae): quantitative analysis of chiral semiochemicals
Semiochemicals released from logs infested by southern pine beetle (SPB), <i>Dendroctonus frontalis</i>, from a total of eight infestations located in Texas, South Carolina, and Virginia were collected four to eight days after initial attack. The quantities and chiralities of most semiochemicals, …
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The role of preen oil and body odour in birds
… in ground-nesting species, but also as a sex semiochemical for olfactory mate choice. Because the role of preen oil odours is probably species-specific, I sampled and analysed the preen oil of two specific species, the Kentish plover (Anarhynchus alexandrinus) and the European pied flycatcher …
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Sviluppo di strategie innovative per il controllo sostenibile di coleotteri xilomicetofagi invasivi del genere Xylosandrus
L'intensificarsi della globalizzazione crea opportunità senza precedenti per lo spostamento di artropodi invasivi dalle aree di origine a nuovi territori. Allo stesso tempo, i cambiamenti climatici in atto a livello globale favoriscono l'arrivo, all'insediamento e la diffusione di specie non …