A Field Efficacy Evaluation of In2Care Mosquito Traps in Comparison with Routine Integrated Vector Management at Reducing <i>Aedes aegypti</i>

Buckner, Eva A.; Williams, Katie F.; Ramirez, Samantha; Darrisaw, Constance; Carrillo, J.; Latham, Mark; Lesser, Christopher R.

doi:10.2987/21-7038

Cited by 17 publications

(20 citation statements)

References 43 publications

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“…We did not conduct any sampling to confirm PPF dissemination, but even if the In2Care traps successfully increased larval and pupal mortality, migrating adults may have contributed to the insignificant changes in adult abundance. However, even when Buckner et al 48 deployed several hundred In2Care traps across 40 ha in Florida, they observed a 57% decrease in adult Ae. aegypti abundance, but these results were not significant.…”

Section: Discussionmentioning

confidence: 96%

“…aegypti and Culex quinquefasciatus and killed immatures, 47 and a recent large‐scale In2Care intervention effort in Florida observed significant reductions in Ae. aegypti larvae and eggs, but not adults, compared to a separate area treated with source reduction, larvicides, and adulticides 48 . One study in New Jersey, USA, tested the effectiveness of PPF autodissemination stations (but not In2Care traps) on Ae.…”

Section: Introductionmentioning

confidence: 99%

“…aegypti larvae and eggs, but not adults, compared to a separate area treated with source reduction, larvicides, and adulticides. 48 One study in New Jersey, USA, tested the effectiveness of PPF autodissemination stations (but not In2Care traps) on Ae. albopictus at the neighborhood level, but again adult populations were unaffected.…”

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

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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Section: Discussionmentioning

confidence: 96%

Section: Introductionmentioning

confidence: 99%

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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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“…These results are similar to the field study of Su et al [29] which showed a residual efficacy of the PPF in the traps after more than 29 weeks with a regular servicing every 3-4 weeks. Bukner et al [30] compared the efficacy of the In2Care traps and an integrated vector management (source reduction, larviciding and adulticiding) in a six months large field trial in Florida. The traps were serviced every 4 months and the results showed a reduction of eggs, larvae and adults abundance in the area treated with the In2Care traps showing the potential of auto-dissemination in large areas.…”

Section: Plos Onementioning

confidence: 99%

Small-scale field assessment against the dengue vector Aedes aegypti using the auto-dissemination approach in an urban area of Vientiane, Lao PDR

et al. 2022

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Background In Lao PDR, dengue fever is the most important vector borne disease and vector control remains the principal method to fight against Aedes aegypti the primary transmitter mosquito species. Vector control management programs need new strategies in addition to conventional larviciding and adulticiding interventions in the country. In this study, we examined the In2Care® Mosquito Trap’s efficacy using insecticide auto-dissemination strategy. The insecticide pyriproxyfen, present in powder form inside the trap station, contaminates the body of gravid female mosquitoes visiting the traps and is later on disseminated via the mosquitoes in breeding sites surrounding the traps. We tested the attractiveness of the Traps, their efficacy to reduce the larval and adult abundance, and the impact on emergence rates. Specifically, we tested if the servicing interval of the In2Care® Mosquito Trap could be extended to 12 weeks. Methods Two black plastic ovitrap buckets and two BG® sentinel traps were placed in the premises of the Science campus of Vientiane Capital located in an urban area to measure weekly the larval and adult relative abundance of Aedes mosquitoes from 2017 to 2019. Twenty-five In2Care® Mosquito Traps were evenly distributed in this area and two studies of 12 weeks were implemented during January and April 2018 and, July to October 2018 (dry and rainy season, respectively). Every 2 weeks, water samples from 5 In2Care® Traps were randomly selected and tested at the laboratory with Ae. aegypti larvae to measure the larval and pupal mortality. The relative abundance of Aedes mosquitoes in the BG traps® with the presence of In2Care® Traps in 2018, was compared with the surveillance results obtained in 2017 and 2019 without In2Care® Traps. Every week, water samples from the ovitrap buckets were tested for Emergence Inhibition (EI). Results The In2Care® Traps were very attractive to gravid Ae. aegypti mosquitoes specifically during the rainy seasons with 96% of the traps colonized with larvae/pupae within four weeks. The bioassays showed 100% mortality in the water samples from the traps during the twelve weeks studies showing the good efficacy over time of the pyriproxyfen without additional servicing in the 12 week period. In addition, the larvicide was successfully disseminated into the ovitrap buckets placed in the treated area where 100% of EI during all weeks of intervention was measured. There was no significant effect of the treatment on adult abundance reduction in the treated area, probably due to recolonization of adult mosquitoes surrounding the field experiment. Conclusions The observed potential of the In2Care® Mosquito Trap using the auto-dissemination strategy could lead to the use of this new tool in combination with conventional control methods against Dengue vectors in urban tropical areas. Large scale field trials should be implemented in Lao PDR to prove its efficacy for Public Health programs.

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“…aegypti and Ae. albopictus using the In2Care trap in semi-field and field situations has been demonstrated ( Buckner et al 2017 , 2021 , Su et al 2020 , Autry et al 2021 , Khater et al 2022 ). In semi-field conditions in Florida conducted from October 2015 to April 2016, In2Care traps were found to be highly attractive to locally colonized ovipositing Ae.…”

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confidence: 99%

Field Evaluation of In2Care Mosquito Traps to ControlAedes aegyptiandAedes albopictus(Diptera: Culicidae) in Hawai’i Island

Brisco

Jacobsen

Seok

et al. 2023

Journal of Medical Entomology

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Aedes aegypti Linnaeus and Aedes albopictus Skuse are vectors of dengue virus and responsible for multiple autochthonous dengue outbreaks in Big Island, Hawai’i. Control of Ae. aegypti and Ae. albopictus has been achieved in In2Care trap trials, which motivated us to investigate this potential control approach in the Big Island. Our In2Care trial was performed in the coastal settlement of Miloli’i in the southwest of Big Island where both Ae. aegypti and Ae. albopictus are found. This trial starting in the second week of July and ending in the last week of October 2019 fell within the traditional wet season in Miloli’i. No significant reduction in egg or adult counts in our treatment areas following 12 wk of two In2Care trap placements per participating household were observed. In fact, an increase in numbers of adults during the trial reached levels that required the local mosquito abatement program to stop the In2Care trap trial and institute a thorough source reduction and treatment campaign. The source reduction campaign revealed a large variety and quantity of water sources competed with the oviposition cups we had placed, which likely lowered the chances of our oviposition cups being visited by pyriproxyfen-contaminated Aedes adults exiting the In2Care traps.

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A Field Efficacy Evaluation of In2Care Mosquito Traps in Comparison with Routine Integrated Vector Management at Reducing Aedes aegypti

Cited by 17 publications

References 43 publications

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

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

Small-scale field assessment against the dengue vector Aedes aegypti using the auto-dissemination approach in an urban area of Vientiane, Lao PDR

Field Evaluation of In2Care Mosquito Traps to ControlAedes aegyptiandAedes albopictus(Diptera: Culicidae) in Hawai’i Island

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