Journal of the American Mosquito Control Association最新文献

In nuisance or vector mosquito management, effective sampling is a stepping stone to efficient use of resources, targeted control efforts, and successful reduction of disease transmission. Experimental evidence indicates that there are species biases for certain traps, which in turn implies that the traps used will influence the species make-up of samples collected. A comparative study between 3 CO2-baited light traps and 2 hay-infusion baited gravid traps-Centers for Disease Control and Prevention (CDC) light trap, American BioPhysics Company (ABC) light trap, Reiter-Cummings (RC) gravid trap, and a convertible gravid/light trap with a novel design-was conducted to test for species specificity of each trap type. It was found that different species of mosquitoes are more likely to be collected in greater numbers with certain traps compared to others, even between the different light traps or gravid traps. In particular, Coquillettidia perturbans tended to be collected in greater numbers with CDC light traps, Culex salinarius tended to be collected in greater numbers with the experimental convertible light traps, and Culex pipiens tended to be collected in greater numbers with the Reiters-Cummings gravid traps over the other traps included in the study (P ≤ 0.05). The overall species richness of samples was comparable among trap types, with similar performance of the new trap designs as established designs (P ≤ 0.05).

From 2021 to 2024, the number of pupae found in storm sewer catch basins in the North Shore suburbs of Chicago were assessed as part of routine quality control and improvement efforts. Over the course of these 4 yr, pupae were collected at least once during all calendar months, allowing for some insight into monthly mosquito production in catch basins. Thus, the intent of this study was to use those data to describe the number of pupae found in these structures across calendar months. In total, 1,993 unique catch basins were sampled. Pupae were found during the months of April through December, with the highest levels seen during June through November. Results suggest that basins may remain productive a month or more after local abatement districts end their routine Culex adult surveillance with gravid traps in late September and early October each year. These observations can help with the timing and intensity of larvicide treatments in Chicago area catch basins and may serve as a baseline for comparison to future seasonal changes.

Changes in the ecosystems of vector-borne diseases can make the environment more or less favorable for mosquito vectors, animal reservoirs, and disease transmission. We report for the 1st time Anopheles marajoara in Argentina. In addition, An. deaneorum is reported for the 1st time in northwestern area of the country. Aedes fulvus, Culex eduardoi, Limatus durhamii, Mansonia pseudotitillans, Psorophora albigenu, Ps. cingulata, and Uranotaenia nataliae are recorded for the 1st time in Tucumán Province. Data on collection localities and comments about medical importance are also presented.

In February 2024, a resident of Mannheim, Germany, collected aggressively attacking mosquitoes in her home and forwarded them to the "Mueckenatlas" citizen science recording scheme. The specimens turned out to be Aedes albopictus. Upon discussing the situation and consultation on the biology of the Asian tiger mosquito, the submitter found numerous developmental stages in the water of a flowerpot with an orchid in her living room. The occurrence of adult tiger mosquitoes during wintertime in Central Europe has never been described before and is probably just an indoor phenomenon. Ideal conditions provided and continued indoor breeding and activity might be an exceptional way for the species to overwinter.

From 1979 to 2024, 51 individuals have been recognized as AMCA honorees for their lifetime achievements in mosquito and vector control. Mir Subhan Mulla (1925-2023) was the most recent honoree recognized in March 2024. Mulla received a scholarship in 1948 to attend Cornell University, where he obtained his bachelor's degree in entomology and parasitology. Mulla received his Ph.D. in entomology at the University of California, Berkeley in 1956, and then joined the University of California, Riverside (UC Riverside) faculty the same year. He retired in 2006 after 50 years of service. As one of the founding faculty in entomology at UC Riverside, Mulla created undergraduate and graduate courses and seminars in medical and veterinary entomology. As a leader in UC Riverside's world-renowned medical entomology graduate program, he advised 27 Ph.D. students, three master's students, 20 postdoctoral fellows, and 30 visiting scholars from many countries. Mulla contributed significantly to research and developments in biology, ecology, and control of arthropods of public health and economic importance, including but not limited to mosquitoes, flies, eye gnats, midges, blackflies, and stored product beetles. His work on biorational pesticides was remarkable. He published more than 550 scientific papers in peer-reviewed journals. Mulla served the scientific community as a consultant, advisor, member, or chairman with numerous national and international organizations. He guided many universities in the development of their medical entomology programs. Mulla also served as one of the founding scientists of the Society for Vector Ecology (SOVE). He also provided financial support for facilities, faculty, and students at UC Riverside. Additionally, Mulla served as a leader in the Riverside Muslim community. He and his wife Lelia founded the Islamic Society of Riverside and Orange Counties in California. In recognition of Mulla's excellence in teaching, mentorship, and research, he received numerous prestigious recognitions from universities, communities, and professional organizations. He will be greatly missed by his loving and devoted family, friends, former students, and colleagues here in the USA and abroad.

We provide new records of Culicoides paraensis from the Yucatan Peninsula. The anthropophilic biting midge C. paraensis is the main vector of Oropouche fever virus in South and Central America. We also report Culicoides poikilonotus for the 1st time in the Yucatan Peninsula and a key to identify the species in this region of Mexico.

The Arizona State University (ASU) Tempe campus is inhabited by some 55,000 enrolled students as well as several mosquito species that can transmit West Nile virus, dengue, Zika, chikungunya, and yellow fever. The time of host-seeking of these vectors has not been quantified on the ASU Tempe campus, but this information is important to inform ground and/or truck-mount fogging operations targeting mosquitoes to prevent or control disease outbreaks. We quantified the time of host-seeking of the predominant mosquito vector species at the ASU Tempe campus during the post-monsoon season in 2021, using collection bottle rotators with encephalitis vector survey traps that were baited with CO2, at 3 h intervals during a full day. Culex quinquefasciatus, Aedes aegypti, and Culex tarsalis were the most abundant species captured. Pre-midnight host-seeking (18:00-00:00) accounted for 52% of all captures, whereas post-midnight host-seeking (00:00-06:00) accounted for 35% of all captures. Peak activity times were between 21:00 and 00:00 for Cx. quinquefasciatus and Cx. tarsalis, and between 15:00 and 18:00 for Ae. aegypti. Data can be used to inform local mosquito surveillance and control programs.

Resting adult mosquito collections provide opportunities to sample broad physiological conditions (e.g., blood-engorged, gravid, nectar-engorged, and/or parous) that yield important biological information necessary to understand vector and pathogen transmission ecology. In this study, we evaluated Prokopak aspirations of Rhododendron spp. and human-powered pop-up resting shelter collections at 4 residences with historical evidence of proximal La Crosse virus (LACV) transmission from May through September 2022. The goal of this study was to investigate these sampling methods in the context of LACV vector biology-focused principally on Aedes triseriatus (primary LACV vector) and 2 invasive species (Ae. albopictus and Ae. japonicus) that likely serve as secondary LACV vectors. Overall, 304 resting shelters and 80 Prokopak collections yielded a grand total of 33 mosquitoes, of which a third were LACV vectors (Ae. triseriatus [n = 1, 3.0%], Ae. albopictus [n = 4, 12.1%], and Ae. japonicus [n = 6, 18.2%]). Anopheles punctipennis (n = 9, 27.2%) was the most frequently collected species followed by Culex erraticus (n = 7, 21.2%), whereas the least frequently collected species were Ae. triseriatus and Cx. pipiens (n = 1, 3.0%). Despite substantial collection efforts, and concurrent gravid-trap evidence of LACV vectors at the collection sites, Prokopak aspiration of Rhododendron spp. and human-powered pop-up resting shelters did not yield a meaningful number of LACV vectors and thus, as described within, may not be useful adjuncts for the evaluation of LACV ecology and disease risk. Additional approaches to evaluate the resting behavior of these vectors in LACV endemic areas are needed.

It is estimated that there are over 500 species of arboviruses worldwide, with more than 150 of them directly associated with human diseases, the majority of which are zoonotic. Among the main arboviruses circulating in Brazil, dengue, Zika, and chikungunya stand out, all transmitted through a common vector, Aedes aegypti. Given this scenario, the development and implementation of more efficient surveillance strategies become urgent. This study aims to compare and evaluate the efficiency of beetroot peel, Beta vulgaris, as an attractant for Ae. aegypti oviposition under field conditions in the municipality of Agrestina, State of Pernambuco, Brazil. Beetroot peel extract is a cheap and accessible source of geosmin, which holds significant potential as an attractant for mosquitoes due to its resemblance to microbial volatiles found in water bodies rich in organic material. During the study period (November 2023 to April 2024), 40 traps were set in each neighborhood, with 20 of each attractant. Two traps were used per property, one following the traditionally used model (beer yeast infusion) and another containing beetroot peel. Overall, in both analyzed neighborhoods (Campo Novo and Cohab), beetroot peel appeared to be a more efficient attractant for the oviposition of culicids. Beetroot peel showed the highest values in egg abundance and in the analyzed indices.

The black saltmarsh mosquito, Aedes taeniorhynchus, is a prominent nuisance mosquito within St. Johns County, Florida. Due to their characteristically large outbreaks, and the elevated amount of insecticide application correlated with the outbreaks, local populations of Ae. taeniorhynchus are at an increased risk of developing insecticide resistance. This study was established to form a baseline susceptibility of Ae. taeniorhynchus against two technical grade materials, permethrin, and chlorpyrifos. Centers for Disease Control and Prevention bottle bioassays were conducted with technical-grade materials during two outbreaks in the fall of 2023. Results indicated a baseline susceptibility against the materials tested, but most notably, the phenotypic expression of knockdown resistance (kdr) was observed. Results highlight the need for continued monitoring and investigation into the resistance status and resistance level of this common Florida species.