Browsing by Department "Entomology and Plant Pathology"
Now showing items 141-160 of 209
Molecular Basis of the Role of Calcium in Xylella fastidiosa Infection Process
(2019-07-16)
Xylella fastidiosa, a xylem-limited bacterial phytopathogen, is the causal agent of devastating diseases on many economically important plants worldwide. During plant infection, X. fastidiosa modifies the mineral content ...
Molecular Mechanisms of Cytochrome P450 Monooxygenase-Mediated Pyrethroid Resistance in the House Fly, Musca domestica (L.)
(2007-08-15)
A wild-type pyrethroid resistant house fly strain, ALHF, was collected from a poultry farm in Alabama after control failure with permethrin (a pyrethroid insecticide). It was further selected with permethrin for 6 generations ...
Molecular Mechanisms of Pyrethroid Resistance in the Mosquito, Culex quinquefasciatus (Say)
(2007-08-15)
Mosquitoes have been the ideal transmitters of a wide variety of disease agents due to their repeated blood feedings over their life span. Culex quinquefasciatus (Say) is an important disease vector in the Southeastern ...
Molecular Research on two Orthotospoviruses Infecting Important Legumes in Alabama.
(2024-04-25)
Peanut (Arachis hypogaea. L) is a major crop in the United States, especially in Georgia, Florida, and Alabama, where they produce two-thirds of the peanut total production in the US. Soybean (Glycine max (L.) Merrill) is ...
Monocyclic Components for Evaluating Disease Resistance to Cercospora arachidicola and Cercosporidium personatum in Peanut
(2016-08-08)
Cultivated peanut (Arachis hypogaea L.) is an economically important crop that is produced in the United States and throughout the world. However, there are two major fungal pathogens of cultivated peanuts, and they each ...
Multiple Mechanisms of Permethrin Resistance in the Southern House Mosquito, Culex quinquefasciatus
(2013-07-18)
The inherited resistance to permethrin in Culex quinquefasciatus, which is the primary vector of encephalitis and lymphatic filariasis pathogens, resulted from the molecular basis of multiple mechanisms involved in changes ...
Mutualisms, Commensalisms, and Predation: The Direct and Indirect Effects of Fire Ants on Arthropods and Plants
(2007-08-15)
The red imported fire ant, Solenopsis invicta, is a voracious generalist predator that has dramatically affected the native arthropod community since its introduction approximately 75 years ago. Most research suggests S. ...
Natural competence and intersubspecific recombination in Xylella fastidiosa; a causal agent of emerging plant diseases
(2017-07-25)
Xylella fastidiosa is a Gram-negative, vector-transmitted, plant-pathogenic bacterium causing incurable diseases to economically important crops such as grapevine, citrus, almond, and coffee. Recent epidemiological studies ...
Natural competence distribution among Xylella fastidiosa strains and construction of a mutant library for RB-TnSeq
(2021-12-01)
The plant pathogen Xylella fastidiosa is a gram-negative, fastidious, xylem-limited, vector-transmitted bacterium, causing severe diseases on many economically important plants such as grapes, citrus, coffee, olive and ...
The Nature of Cucumber Mosaic Virus-Induced Symptoms in Bell Pepper (Capsicum annuum L.)
(2009-12-14)
We determine phenotypic and cytological effects on pepper plant growth and development in response to systemic invasion by CMV and evaluate a CMV strain, mutated in the gene silencing suppressor gene, 2b, for its ability ...
Nematode Community Structure and Effects on Peanut Production Systems
(2010-08-03)
Understanding the total nematode community in agronomic systems and its impact on crop health may provide insight into more sustainable management strategies. In this study the focus was on management of the peanut root-knot ...
Novel ZnO nanoparticle activity against Liberibacter crescens growth and biofilm formation
(2018-06-07)
Huanglongbing (HLB) or citrus greening is the most devastating citrus disease worldwide and it
severely affects the US citrus industry with millionaire losses annually. The phloem limited,
insect vectored and uncultivable ...
Nutritional Ecology of Pseudacteon species (Diptera: Phoridae) and Its Impact on Their Fitness
(2015-07-24)
Natural enemies, such as Pseudacteon parasitic flies, have the potential to provide sustainable suppression of imported fire ants, Solenopsis species. Multiple releases of various species of these flies have been made ...
Olfactory Responses and Odor Coding of Culex quinquefasciatus to Human Odorants
(2015-07-21)
The southern house mosquito, Culex quinquefasciatus (Diptera: Culicidae), transmits a number of potentially fatal diseases, including West Nile virus (WNV). From 1999 to 2013, WNV caused 39,557 cases of human infection and ...
Optimizing Beekeepers’ Strategies for Varroa destructor Management
(2024-05-01)
We benefit from a longstanding relationship with the Western honey bee, Apis mellifera. In particular, honey bee pollination is important for crops worldwide. Colony losses are elevated in regions including North America, ...
Patterns of Host Use in Mosquitoes: Implications for Virus Transmission
(2010-04-07)
Mosquitoes do not feed indiscriminately among hosts, but demonstrate various patterns of host use. Each mosquito species may specialize in feeding within a group of related hosts or may utilize a wide variety of hosts. ...
Phenology of Pseudacteon spp. (Diptera: Phoridae) flies in Alabama
(2014-12-10)
Phorid flies, Pseudacteon spp. (Diptera: Phoridae), are one of many biological control agents of Solenopsis spp. (Hymenoptera: Formicidae) fire ants in their native South America. More than twenty species of phorid flies ...
Phenology, Natural Enemies, and Management of Lepidopteran Pests of Cole Crops in Alabama
(2006-05-15)
This thesis first looks at the seasonal abundance of the three key pests of cole crops, Plutella xylostella (L.) (Lepidoptera: Plutellidae), diamondback moth; Trichoplusia ni (Hübner) (Lepidoptera: Plutellidae), cabbage ...
Phylogenetic Patterns of Diversity in Herbivorous Insects
(2019-11-14)
Herbivorous insects comprise an extraordinary amount of the world’s biodiversity, but we do not fully understand what led to the extensive diversification within this group. Popular hypotheses focus on coevolutionary ...
Physiology and Chemical Ecology of Solenopsis Fire Ants: Interactions with Biotic and Abiotic Factors in Their Environment
(2020-05-14)
Interactions between organisms and the environment affect the survival and distribution of species. Biotic and abiotic factors impact the adaptations of Solenopsis fire ants (Hymenoptera: Formicidae) in the southeastern ...