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The Community Structure Of Methanogenic, Methanotrophic, And Ammonia Oxidizing Bacteria In Vertical Flow Greenhouse Wetland Mesocosms Exposed To Pce, William Evan Gruner

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Chlorinated ethenes are among the top contaminants on the EPA National Priorities List due to their abundance in contaminated sites and their recalcitrant nature. These compounds, which are used in large scale degreasing and textile processes, are known liver and kidney toxins, and suspected carcinogens. Wetland ecosystems are capable of degrading PCE and its breakdown products TCE, DCE, and VC by providing anaerobic and aerobic growth conditions for microbes that express enzymes such as dehalogenases and monooxygenases with dual affinity for chlorinated solvents. Greenhouse mesocosms at Wright State University are used to mimic field conditions at a treatment wetland at …

The Characterization Of Carbamate Resistance In The Colorado Potato Beetle, Leptinotarsa Decemlineata (Say), In Comparison With The House Fly, Musca Domestica (L), Randy L. Rose

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

Resistant and susceptible populations of the Colorado potato beetle, Leptinotarsa decemlineata (Say), and the house fly, Musca domestica (L), were compared with respect to carbofuran and carbaryl toxicity in the presence and absence of the synergist, piperonyl butoxide. Resistance levels of the New Jersey population when compared with the susceptible Logan population by topical application of carbaryl and carbofuran were > 833 and 820, respectively. A resistance level of 583 was determined from carbofuran bioassays of Rutgers and NAIDM house flies. Similar levels of resistance development between these species suggests the possibility that similar resistance mechanisms may be involved.

Utilization of …