Short-Term, Large-Area Survey of Container <i>Aedes spp.</i> (Diptera: Culicidae): Presence and Abundance is Associated with Fine-scale Landscape Factors in North Carolina, USA

Reiskind, Michael H.; Styers, Diane M.; Hayes, Isaac T.; Richards, Stephanie L.; Doyle, Michael Scott; Reed, E. M. X.; Hollingsworth, Brandon; Byrd, Brian D

doi:10.1177/1178630220952806

Cited by 3 publications

(4 citation statements)

References 47 publications

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“…There is some evidence that socioeconomic factors are important for determining the abundance of Ae. albopictus at the local scale (29); however, other studies suggest that local land use is the most important determinant of Ae. albopictus abundance, outweighing socioeconomic factors (e.g., income) (30).…”

Section: Introductionmentioning

confidence: 93%

Spatial and Temporal Dynamics of Aedes albopictus Populations in Rural and Agricultural Areas in Chania, Greece, After Its Invasion

Stefopoulou¹,

Balatsos²,

Papadopoulos³

et al. 2022

Front. Trop. Dis

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Aedes albopictus, also known as the Asian tiger mosquito, is an aggressive invasive mosquito species that transmits parasites that cause several major human diseases such as dengue, Chikungunya, and Zika. Its recent establishment in many European countries and the reported autochthonous cases of Aedes-transmitted arboviral diseases highlight the importance of effective surveillance programs to plan and implement efficient mosquito-control interventions. Aedes albopictus invaded the Greek island of Crete in 2014 and rapidly spread throughout; however, there are no comprehensive population-related data yet available. Our study focused on spatial and temporal dynamics of Ae. albopictus populations in rural and agricultural areas in Chania (western part of the Crete Island). An oviposition surveillance network, consisting of 51 ovitraps, was established in 2017 and systematically inspected for 2 years. Thirty ovitraps were established in rural areas and 21 in the surrounding agricultural areas. Eggs were collected weekly and transferred to the laboratory for counting and assessment of hatching rates. The spatial and temporal egg distribution was assessed by using geographical information systems and spatial statistical analysis tools. Kernel density and hot spot analysis were employed to identify clusters of high populations of eggs. Oviposition activity (eggs in traps) was recorded during April–May and December (of both years), while the maximum egg-laying rates were observed during September–October. The proportion of traps with eggs was similar between rural and agricultural areas, while the higher number of eggs was recorded in rural compared to agricultural areas during 2017. Egg hatch rates were high (>90%) until the end of September. The proportion of diapausing non-hatched eggs rapidly increased at the end of November. All hatched larvae were identified as Ae. Albopictus, indicating a negative effect of the invasion on the population of the local species Ae. cretinus. This was a systematic attempt to monitor the seasonal and spatial patterns of the Asian tiger mosquito in the island of Crete, the southernmost area of Europe, and a study in Europe that assessed temporal and spatial dynamics of Ae. albopictus soon after its invasion and establishment in an area.

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Section: Introductionmentioning

confidence: 93%

Spatial and Temporal Dynamics of Aedes albopictus Populations in Rural and Agricultural Areas in Chania, Greece, After Its Invasion

Stefopoulou¹,

Balatsos²,

Papadopoulos³

et al. 2022

Front. Trop. Dis

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“…The liver powder infusion was made by adding ½ teaspoon of bovine liver powder (#02900396 MP Biomedicals, Solon, OH, USA) to 2.5 gallons (9.46 L) of dechlorinted water. The abundance of eggs oviposited on the seed germination papers are commonly used to assess container mosquito abundance [38][39][40][41][42]. Ovitraps were deployed for 7-day collection periods.…”

Section: Mosquito Collectionmentioning

confidence: 99%

Community efforts to monitor and manage Aedes mosquitoes (Diptera: Culicidae) with ovitraps and litter reduction in east Tennessee

Day

Fryxell

2022

BMC Public Health

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Background East Tennessee (USA) is burdened by mosquito-borne La Crosse virus disease, but minimal resources for mosquito surveillance, management, or related community education exist in the region. To address these needs, we developed a program to train middle and high school educators in basic medical entomology. The educators then used their skills in the classroom to teach students about La Crosse virus disease and conduct mosquito collection experiments. As a case study of a potential application of classroom-collected data, we also partnered with a local non-profit organization to assess the potential for a volunteer litter cleanup to reduce mosquito populations in a Tennessee neighborhood. Methods Our first objective was to investigate the ability for educators and their students (schools) to collect high-quality mosquito surveillance data. In 2019 and 2020, we collected Aedes (Diptera: Culicidae) eggs during the same study period as schools and assessed whether data collected by schools reflected the same findings as our own data. Our second objective was to investigate the impact of a volunteer litter cleanup event on Aedes mosquito abundance. In 2021, we collected Aedes eggs before and after a neighborhood trash cleanup while schools conducted their own mosquito egg collections. Using the school collections as non-treatment sites, we used a Before-After-Control-Impact analysis to determine if there was a significant decline in egg abundance after the cleanup. Results In 2019, mosquito abundance trends were similar between our data and school data but differed significantly during some weeks. After refining our protocols in 2020, school data was highly similar to our data, indicating that schools consistently collected high-quality surveillance data in the program’s second year. In 2021, we found a significant decline in Aedes egg abundance after the litter cleanup event in comparison to the schools, but the number of adults reared from those eggs did not differ between sites after the cleanup. Conclusion The results of our work demonstrate the potential for community-driven programs to monitor mosquito abundance trends and for volunteer-based cleanup events to reduce the burden of Aedes mosquitoes. In the absence of infrastructure and resources, academic-community partnerships like the ones evaluated here, provide opportunities to help resource limited areas.

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“…albopictus has been identified in nearly 44% of counties in the country from 1995 through 2016, and in almost every place examined in North Carolina. [5][6][7] An aggressive biter, Ae. albopictus is the primary nuisance mosquito for homeowners in suburban North Carolina and is collected in abundance around our study area.…”

Section: Introductionmentioning

confidence: 99%

“…Discovered in the United States in 1985 and present in North Carolina since at least 1987, 1–4 Ae. albopictus has been identified in nearly 44% of counties in the country from 1995 through 2016, and in almost every place examined in North Carolina 5–7 . An aggressive biter, Ae.…”

Section: Introductionmentioning

confidence: 99%

Effectiveness of autocidal gravid trapping and chemical control in altering abundance and age structure of Aedes albopictus

Figurskey

Hollingsworth

Doyle

et al. 2022

Pest Management Science

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Background: Aedes albopictus is a nuisance pest mosquito of public health importance commonly managed with adulticides and larvicides. We investigated whether adding Gravid Aedes Traps (GATs), Autocidal Gravid Ovitraps (AGOs) or In2Care traps would extend the effectiveness of chemical control methods in Wake County, North Carolina, USA, by combining barrier sprays and larval habitat management (LHM) with each trap type at suburban households. We compared these three treatment groups to untreated controls and to backyards treated only with barrier sprays and LHM. Once a week, for ten weeks, we collected adult mosquitoes at each house using lure-baited surveillance traps and dissected a portion of Ae. albopictus females to determine parity.Results: Barrier sprays and LHM alone or combined with any supplemental autocidal ovitrap significantly reduced female Ae. albopictus through Week 3 post-treatment. GATs significantly extended chemical control effectiveness for the duration of the study. Compared to the untreated control, the AGO and GAT treatment groups had significant overall female Ae. albopictus reductions of 74% and 80.4%, respectively, with populations aging significantly slower at houses treated with AGOs. Conclusion:This household-level study, though limited in size, observed significant reductions in nuisance Ae. albopictus when combining AGOs and GATs with chemical controls for an eight-week period. Delayed population aging in AGO-treated yards suggests that traps also could mitigate disease transmission risk. Future studies should test these control methods at the neighborhood level to evaluate large-scale effectiveness as well as assess the effect of autocidal ovitraps without chemical intervention.

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Short-Term, Large-Area Survey of Container Aedes spp. (Diptera: Culicidae): Presence and Abundance is Associated with Fine-scale Landscape Factors in North Carolina, USA

Cited by 3 publications

References 47 publications

Spatial and Temporal Dynamics of Aedes albopictus Populations in Rural and Agricultural Areas in Chania, Greece, After Its Invasion

Spatial and Temporal Dynamics of Aedes albopictus Populations in Rural and Agricultural Areas in Chania, Greece, After Its Invasion

Community efforts to monitor and manage Aedes mosquitoes (Diptera: Culicidae) with ovitraps and litter reduction in east Tennessee

Effectiveness of autocidal gravid trapping and chemical control in altering abundance and age structure of Aedes albopictus

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