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Full-Text Articles in Life Sciences

Spatial-Temporal Variation Of The Density And Distribution Of Stink Bugs (Heteroptera: Pentatomidae) In Cotton, Gossypium Hirsutum (L.), As Part Of A Diverse Agroecosystem, Richard Reeves Aug 2009

Spatial-Temporal Variation Of The Density And Distribution Of Stink Bugs (Heteroptera: Pentatomidae) In Cotton, Gossypium Hirsutum (L.), As Part Of A Diverse Agroecosystem, Richard Reeves

All Theses

Studies were conducted during 2007 and 2008 to investigate the distribution and density of phytophagous stink bugs and boll injury in cotton as part of a variable farmscape. The goals of this research were to: (1) compare and contrast sampling techniques and correlate the density of stink bugs and associated internal boll injury with measurements of crop phenology, (2) establish the spatial and temporal distributions of stink bugs and boll injury on a whole-field scale, and (3) determine the density of stink bugs and boll injury along field margins as influenced by adjacent habitats and crops. The ground cloth was …


Reproductive Strategies And Colony Relatedness In The Invasive Ponerine Ant Pachycondyla Chinensis (Emery), Andrew Tebeau Aug 2009

Reproductive Strategies And Colony Relatedness In The Invasive Ponerine Ant Pachycondyla Chinensis (Emery), Andrew Tebeau

All Theses

Pachycondyla chinensis (Emery) (Formicidae: Ponerinae), is an ancestral ant introduced from Asia. It is considered a pest species of medical and ecological concern. Since its initial 1932 documentation occurring in three Southeastern U.S. states at relatively low frequencies, the invasion of P. chinensis has spread to at least three additional states in discontinuously widespread populations that are locally abundant. Little is known about P. chinensis population structure and reproduction, and an investigation into these strategies offers insight into the means by which this pest species proliferates, and ultimately, can assist in the design of management strategies. The objectives of this …


Effects Of Parasitism And Soil Compaction On Pupation Behavior Of The Green Bottle Fly Lucilia Sericata (Meigen) (Diptera: Calliphoridae), Jonathan Cammack Aug 2009

Effects Of Parasitism And Soil Compaction On Pupation Behavior Of The Green Bottle Fly Lucilia Sericata (Meigen) (Diptera: Calliphoridae), Jonathan Cammack

All Theses

Although the pupation behavior of blow flies has been widely studied, my work is the first to examine the effects of parasitoids and soil compaction on pupation behavior. The objectives of my research were to provide insight into a host-parasitoid system involving Lucilia sericata (Meigen) (Diptera: Calliphoridae) and Nasonia vitripennis (Walker) (Hymenoptera: Pteromalidae) and to develop a predictive model of pupation depth for L. sericata, with respect to soil compaction. Two experiments were conducted examining the effects of parasitoids and soil compaction on the pupation behavior of L. sericata. In all experiments, larvae of L. sericata were introduced to containers …


Managing Linepithema Humile (Mayr), The Argentine Ant, In South Carolina State Park Campgrounds, Brittany Ellis May 2009

Managing Linepithema Humile (Mayr), The Argentine Ant, In South Carolina State Park Campgrounds, Brittany Ellis

All Theses

Linepithema humile (Mayr), the Argentine ant, is known as a pest in many urban areas of the southeastern United States. In the Piedmont region of South Carolina, there is a documented problem with L. humile invading the campsites of state park campgrounds. While some parks have tried to implement proactive control programs, the most widely used tactic is spraying insecticides when L. humile populations become intolerable to visitors. Although park personnel are treating problem areas with liquid insecticide, park visitors also treat their campsites with insecticidal products, as well as products not labeled for ant control.
Surveys in 2008 showed …