A5087826214- Insect and Pesticide Research
- Plant and animal studies
- Insect and Arachnid Ecology and Behavior
- Entomopathogenic Microorganisms in Pest Control
- Insect Pest Control Strategies
- Forest Insect Ecology and Management
- Nematode management and characterization studies
- Evolution and Genetic Dynamics
The Ohio State University
2021-2025
Utah State University
2012-2015
Agricultural Research Service
2006
Abstract Pollen is an essential component of bee diets, and rearing bumble bees (Bombus spp.) for commercial use necessitates feeding pollen in mass quantities. This collected from honey (Apis mellifera L.) colonies because neither artificial diet nor economical, large-scale collection process flowers available. The provenance bee-collected often unknown, some cases has crossed international borders. Both deformed wing virus (DWV) the fungal pathogen Ascosphaera apis (Claussen) Olive &...
Bumble bees face numerous environmental stressors, including gut-parasite infection and exposure to agricultural fungicides, which can negatively impact colony health. This study evaluates the interactive effects of these stressors on bumble bee ( Bombus impatiens ) microcolonies, focusing development, worker survival parasite dynamics. Our aim in evaluating interactions was determine if would experience synergistic negative health outcomes compared single- stressor exposures. We reared 40...
The behavior of adult Colorado potato beetles (Leptinotarsa decemlineata) in the presence Beauveria bassiana sporulating on cadavers was studied to determine likelihood disease infection as emerge from soil and colonize host plants. In 2001, movement single monitored arenas containing infective differing spatial patterns between four 2002, a similar design used, but under more natural conditions field. both experiments, direction, time, directness beetle travel not significantly affected by...
Abstract Wild and managed bee populations are in decline, one of many environmental causes is the impact pesticides on developing bees. For solitary bees, delayed larval development could lead to asynchronous adult emergence, unhealthy inefficient pollinators, decreased brood production survival. We examined a methodology for testing Osmia lignaria Say (Hymenoptera: Megachilidae) responses pesticide exposure using laboratory bioassay. created two provision types: homogenized blend O....
Historically, bee age has been estimated using measurements of wing wear and integument color change. These have useful in studies foraging ecology plant-pollinator interactions. Wing is speculated to be affected by the behaviors associated with foraging, nesting, mating activities. Setal change may an additional parameter used measure if it sun exposure during these same The objectives this study were experimentally assess effect direct on setal color, unicellular hair-like processes...
The alfalfa leafcutting bee (Megachile rotundata (Fabricius)), a commercial pollinator used for seed production, is susceptible to chalkbrood disease via ingested fungal spores. Diseases of insects can elicit behavioral changes in their hosts, but there are no recorded behaviors bees response this exposure. We conducted field studies determine whether pathogen-dense environments altered nesting patterns, specifically if exposed spores produced higher numbers nest cells and the proportions...
Ascosphaera (Eurotiomycetes: Onygenales) is a diverse genus of fungi that exclusively found in association with bee nests and comprises both saprophytic entomopathogenic species. To date, most genomic analyses have been focused on the honeybee pathogen A. apis, we lack understanding how pathogenesis evolved more broadly genus. address this gap sequenced genomes leaf-cutting aggregata as well three commensal species: pollenicola, atra acerosa. De novo annotation comparison assembled was...
Ascosphaera (Eurotiomycetes: Onygenales) is a diverse genus of fungi that exclusively found in association with bee nests and comprises both saprophytic entomopathogenic species. To date, most genomic analyses have been focused on the honeybee pathogen A. apis , we lack understanding how pathogenesis evolved more broadly genus. address this gap sequenced genomes leaf-cutting aggregata as well three commensal species: pollenicola, atra acerosa . De novo annotation comparison assembled was...