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Biology And Management Of The Bed Bug, Cimex Lectularius L. (Heteroptera: Cimicidae), Alvaro Romero
Biology And Management Of The Bed Bug, Cimex Lectularius L. (Heteroptera: Cimicidae), Alvaro Romero
University of Kentucky Doctoral Dissertations
The near absence of bed bugs from human dwellings for fifty or more years has left us with limited knowledge of its biology and few answers to eliminate populations. I explored a diverse set of objectives to answer key questions concerning bed bug biology and control. Major objectives were studies of circadian rhythmicity, pyrethroid resistance, sublethal effects of insecticides, synergism of pyrethroids, and evaluation of a pyrrole insecticides, chlorfenapyr. Additional studies included persistence of Borrelia in bed bugs after ingestion, and aggregation factors from feces.
In the absence of host stimuli, insects were much more active in the dark than …
Hymenopteran Molecular Phylogenetics: From Apocrita To Braconidae (Ichneumonoidea), Barbara J. Sharanowski
Hymenopteran Molecular Phylogenetics: From Apocrita To Braconidae (Ichneumonoidea), Barbara J. Sharanowski
University of Kentucky Doctoral Dissertations
Two separate phylogenetic studies were performed for two different taxonomic levels within Hymenoptera. The first study examined the utility of expressed sequence tags for resolving relationships among hymenopteran superfamilies. Transcripts were assembled from 14,000 sequenced clones for 6 disparate Hymenopteran taxa, averaging over 660 unique contigs per species. Orthology and gene determination were performed using modifications to a previously developed computerized pipeline and compared against annotated insect genomes. Sequences from additional taxa were added from public databases with a final dataset of 24 genes for 16 taxa.
The concatenated dataset recovered a robust and well-supported topology; however, there was extreme …