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Source: Journal of Medical Entomology
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Total 409 results found since Jan 2013.
Panola Mountain Ehrlichia in Amblyomma maculatum From the United States and Amblyomma variegatum (Acari: Ixodidae) From the Caribbean and Africa
Panola Mountain Ehrlichia (PME) has been suggested as an emerging pathogen of humans and dogs. Domestic goats and white-tailed deer (Odocoileus virginianus) are also susceptible and likely serve as reservoirs. Experimentally, both the lone star tick (Amblyomma americanum (L.)) and the Gulf Coast tick (Amblyomma maculatum Koch) can transmit PME among deer and goats. In the current study, we detected PME in adult wild-caught A. maculatum from the United States and Amblyomma variegatum (F.) from the Caribbean and Africa. This significantly expands the range, potential tick vectors, and risk for exposure to PME.
Source: Journal of Medical Entomology - May 19, 2016 Category: Biology Authors: Loftis, A. D., Kelly, P. J., Paddock, C. D., Blount, K., Johnson, J. W., Gleim, E. R., Yabsley, M. J., Levin, M. L., Beati, L. Tags: Short Communication Source Type: research
Determination of Insecticidal Effect (LC50 and LC90) of Organic Fatty Acids Mixture (C8910+Silicone) Against Aedes aegypti and Aedes albopictus (Diptera: Culicidae)
Emerging and re-emerging vector-borne diseases such as chikungunya and dengue and associated Aedes vectors are expanding their historical ranges; thus, there is a need for the development of novel insecticides for use in vector control programs. The mosquito toxicity of a novel insecticide and repellent consisting of medium-chain carbon fatty acids (C8910) was examined. Determination of LC50 and LC90 was made against colony-reared Aedes aegypti (L.) and Aedes albopictus (Skuse) using probit analysis on mortality data generated by Centers for Disease Control and Prevention bottle bioassays. Six different concentrations of C...
Source: Journal of Medical Entomology - May 19, 2016 Category: Biology Authors: Dunford, J. C., Falconer, A., Leite, L. N., Wirtz, R. A., Brogdon, W. G. Tags: Short Communication Source Type: research
Estimating Field Densities of Haematobia irritans (Diptera: Muscidae) Using Direct Visual Field Counts Versus Photographic Assessments
Horn flies, Haematobia irritans (L.), were photographed on cattle and then immediately estimated visually in the field on pastured beef cattle in southern California. Horn flies were counted in the pictures later on a computer screen. For 479 counts on individual cattle, the concordance correlation coefficient between the visual and photo-based assessments was 0.790, but was better for the higher half of the counts (0.732) than for the lower half of the counts (0.217). Major axis regression indicated that visual estimates were consistently higher than the number of flies counted in the pictures across the entire density ra...
Source: Journal of Medical Entomology - May 19, 2016 Category: Biology Authors: Mullens, B. A., Soto, D., Gerry, A. C. Tags: Short Communication Source Type: research
Diversity and Prevalence of Ectoparasites on Backyard Chicken Flocks in California
Peridomestic ("backyard") chicken flocks are gaining popularity in the developed world (e.g., North America or Europe), yet little is known regarding prevalence or severity of their ectoparasites. Therefore, five birds on each of 20 properties throughout southern California were surveyed in summer for on-host (permanent) and off-host dwelling (temporary) ectoparasites. Only four premises (20%) were entirely free of ectoparasites. In declining order of prevalence (% of premises), permanent ectoparasites included six chicken louse species: Menacanthus stramineus (Nitzsch) (50%), Goniocotes gallinae (De Geer) (35%), Lipeurus ...
Source: Journal of Medical Entomology - May 19, 2016 Category: Biology Authors: Murillo, A. C., Mullens, B. A. Tags: Short Communication Source Type: research
A Note on Variations in Morphological Features of the Phlebotomine Sand Fly Sergentomyia bailyi (Diptera: Psychodidae) in a Population From Pondicherry UT, India
This study confirms the existence of a species complex within S. bailyi population at Pondicherry UT.
Source: Journal of Medical Entomology - May 19, 2016 Category: Biology Authors: Yogeswari, S., Srinivasan, R. Tags: Short Communication Source Type: research
New Records and Updated Checklist of Phlebotomine Sand Flies (Diptera: Psychodidae) From Liberia
Phlebotomine sand flies from three counties in Liberia were collected from January 2011 to July 2013. In total, 3,118 sand flies were collected: 18 species were identified, 13 of which represented new records for Liberia. An updated taxonomic checklist is provided with a brief note on sand fly biology, and the disease vector potential for species is discussed.
Source: Journal of Medical Entomology - May 19, 2016 Category: Biology Authors: Obenauer, P. J., Rueda, L. M., El-Hossary, S. S., Watany, N., Stoops, C. A., Fakoli, L. S., Bolay, F. K., Diclaro, J. W. Tags: Short Communication Source Type: research
An Expanded Reverse Line Blot Hybridization Protocol for the Simultaneous Detection of Numerous Tick-Borne Pathogens in North America
We describe an expanded protocol using a combination of multiplex polymerase chain reaction and reverse line blot hybridization to detect a greater diversity of infectious agents than were previously detectable. Ten novel oligonucleotide probes, either individually or in concert, enabled or enhanced identification of six Borrelia species, three Rickettsia species, and one Ehrlichia species. Simultaneous detection of these numerous tick-borne pathogens can advance surveillance efforts and improve accuracy of detection and, thus, reporting.
Source: Journal of Medical Entomology - May 19, 2016 Category: Biology Authors: Fredericks, L. P., Forgacs, D., Yu, J., Allan, B. F. Tags: Short Communication Source Type: research
High Levels of Resistance in the Common Bed Bug, Cimex lectularius (Hemiptera: Cimicidae), to Neonicotinoid Insecticides
The rapid increase of bed bug populations resistant to pyrethroids demands the development of novel control tactics. Products combining pyrethroids and neonicotinoids have become very popular for bed bug control in the United States, but there are concerns about evolution of resistance to these compounds. Laboratory assays were used to measure the toxicity of topical applications of four neonicotinoids to a susceptible population and three pyrethroid-resistant populations. Activity of esterases, glutathione S-transferases, and cytochrome P450s of all strains was also evaluated. High levels of resistance to four neonicotino...
Source: Journal of Medical Entomology - May 19, 2016 Category: Biology Authors: Romero, A., Anderson, T. D. Tags: Short Communication Source Type: research
First Record of the Larval Endoparasitoid Tachinaephagus zealandicus (Hymenoptera: Encyrtidae) From Fly Hosts Developing on Burnt Remains and in Pennsylvania
Adults of the gregarious larval endoparasitoid Tachinaephagus zealandicus Ashmead (Hymenoptera: Encyrtidae) were collected from two species of carrion-inhabiting flies, Phormia regina Meigen (Diptera: Calliphoridae) and Hydrotaea aenescens Wiedemann (Muscidae), associated with the burnt remains of a domesticated pig, Sus scrofa L. (Artiodactyla: Suidae), during late summer in south central Pennsylvania. This represents the first reported occurrence of the wasp in the state and only the second in the mid-Atlantic region. Collection from P. regina is a new host record for T. zealandicus and also the first for this parasitoid...
Source: Journal of Medical Entomology - May 19, 2016 Category: Biology Authors: Rivers, D. B. Tags: Short Communication Source Type: research
Cover
Source: Journal of Medical Entomology - March 8, 2016 Category: Biology Tags: Cover / Standing Material Source Type: research
Editorial Board
Source: Journal of Medical Entomology - March 8, 2016 Category: Biology Tags: Cover / Standing Material Source Type: research
Subscriptions Page
Source: Journal of Medical Entomology - March 8, 2016 Category: Biology Tags: Cover / Standing Material Source Type: research
Information for Contributors
Source: Journal of Medical Entomology - March 8, 2016 Category: Biology Tags: Cover / Standing Material Source Type: research
Table of Contents
Source: Journal of Medical Entomology - March 8, 2016 Category: Biology Tags: Cover / Standing Material Source Type: research
Update on Journal Policy of Aedine Mosquito Genera and Subgenera
Source: Journal of Medical Entomology - March 8, 2016 Category: Biology Authors: Reisen, W. K. Tags: Editorial Source Type: research
