Laboratory Tests of the Residual Effect of Deltamethrin on Vegetation Against Aedes albopictus

Bengoa, Mikel; Eritja, Roger; Lucientes, Javier

doi:10.2987/13-6331r.1

Cited by 5 publications

(7 citation statements)

References 21 publications

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“…The effect of insecticide-treated vegetation on Ae albopictus was reported 20 using K-othrine SC 25 (deltamethrin 2.56%) and Aqua K-othrine (deltamethrin 2.03%) in Spain. Applications to vegetation in plots were made using a hand compression Solo 423 backpack sprayer and mosquitoes were exposed to treated leaves in the laboratory.…”

Section: Bioassays and Semi-field Studiesmentioning

confidence: 99%

“…Compared with studies in the United States with deltamethrin, the mortality period was shorter, with mortality for Aqua K-othrine-treated plants out to 12 days, and 5 days for K-othrine-treated plants. 20 In semi-field cages, 21 male and female Ae albopictus were exposed to wax myrtle plants treated with 1 of 6 products: Cy-kick CS (6% Cyfluthrin), Masterline (7.9% bifenthrin), Tempo SC Ultra (11.8% β-cyfluthrin), Demand CS (9.7% lambda-cyhalothrin), Suspend SC (4.75% deltamethrin), and Talstar P (7.9% bifenthrin). Leaves were treated to maximum label rates of each insecticide using a 700 mL spray bottle.…”

Section: Bioassays and Semi-field Studiesmentioning

confidence: 99%

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A Review of Studies Evaluating Insecticide Barrier Treatments for Mosquito Control From 1944 to 2018

Stoops¹,

Qualls

Nguyen

et al. 2019

Environ�Health�Insights

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Background and Purpose: Barrier insecticide treatments have a long history in mosquito control programs but have been used more frequently in the United States in recent years for control of invasive “backyard” species (eg, Aedes albopictus) and increases in incidence of vector-borne diseases (eg, Zika). Methods: We reviewed the published literature for studies investigating barrier treatments for mosquito control during the last 74 years (1944-2018). We searched databases such as PubMed, Web of Science, and Google Scholar to retrieve worldwide literature on barrier treatments. Results: Forty-four studies that evaluated 20 active ingredients (AIs) and 21 formulated products against multiple mosquito species are included. Insecticides investigated for efficacy included organochlorines (dichlorodiphenyltrichloroethane [DDT], β-hexachlorocyclohexane [BHC]), organophosphates (malathion), and pyrethroids (bifenthrin, deltamethrin, permethrin, lambda-cyhalothrin) as AIs. Study design varied with multiple methods used to evaluate effectiveness of barrier treatments. Barrier treatments were effective at lowering mosquito populations although there was variation between studies and for different mosquito species. Factors other than AI, such as exposure to rainfall and application equipment used, also influenced control efficacy. Conclusions: Many of the basic questions on the effectiveness of barrier insecticide applications have been answered, but several important details still must be investigated to improve precision and impact on vector-borne pathogen transmission. Recommendations are made to assist future evaluations of barrier treatments for mosquito control and to limit the potential development of insecticide resistance.

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Section: Bioassays and Semi-field Studiesmentioning

confidence: 99%

Section: Bioassays and Semi-field Studiesmentioning

confidence: 99%

A Review of Studies Evaluating Insecticide Barrier Treatments for Mosquito Control From 1944 to 2018

Stoops¹,

Qualls

Nguyen

et al. 2019

Environ�Health�Insights

View full text Add to dashboard Cite

show abstract

“…The main mosquito control programs have been developed in Catalonia. For example, in the Baix Llobregat comarca (county), the integrated vector management includes community-based information plans and application of larvicides and adulticides [ 75 ]. In Sant Cugat del Vallés, Abramides et al [ 76 ] combined four control measures, including application of larvicides and adulticides, public cooperation for source removal and cleaning of landfills, finding a significant reduction of oviposition.…”

Section: Reviewmentioning

confidence: 99%

“…Also, some tests of biocides have been conducted in Spain. Bengoa et al tested residual pyrethroids on plants to act as chemical barrier against adults [ 75 ] and ultra-low volume (ULV) method with pyrethroids [ 78 ]. Both tests resulted in effective outcomes.…”

Section: Reviewmentioning

confidence: 99%

Review of ten-years presence of Aedes albopictus in Spain 2004–2014: known distribution and public health concerns

et al. 2015

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Ten years have gone by since the Asian tiger mosquito Aedes albopictus was recorded for the first time in Spain. In this paper, all relevant published information about this vector in Spain for the period 2004–2014 is reviewed. The known distribution for 2014 is provided, including all historical records (published and unpublished data) and the results from samplings of the last year. The consequences on public health about the presence of the Asian tiger mosquito in Spain are also highlighted. Further, legal aspects and control plans related to the management and diseases transmitted by this invasive vector species are also discussed.Electronic supplementary materialThe online version of this article (doi:10.1186/s13071-015-1262-y) contains supplementary material, which is available to authorized users.

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“…Due to its longer environmental persistence, it needs to be applied less often, but it is more likely to result in chronic exposure. When tested as a residual barrier applied on vegetation, laboratory results indicated that deltamethrin allowed reasonable control of 80% of the mosquitoes resting in vegetation for almost two weeks after initial application (Bengoa et al 2013). Deltamethrin has also been approved by the WHO as a safe residual treatment for bed nets (Ehiri et al 2004;Bengoa et al 2013).…”

Section: Exposurementioning

confidence: 99%

A Spatial Analysis Evaluation of DeltaGard®20EW Operational Efficacy in Winnipeg, Manitoba for Adult Mosquito Control

Pawluk¹

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Background: Mosquito abatement includes the management and surveillance of nuisance and potential vector mosquitoes. The major nuisance mosquito in Winnipeg, Manitoba is Ae. vexans, a floodwater mosquito. The City of Winnipeg Insect Control Branch uses surveillance, source elimination, larvicide, and adulticide in their mosquito abatement program. Adulticide application is the last resort when the other methods are not sufficient. This study tested DeltaGard®20EW adulticide efficacy operationally on wild mosquitoes in Winnipeg, Manitoba as a replacement for the previously used Malathion 95ULV® while considering the effect of landscape features. Methods: New Jersey Light and Centre for Disease Control mosquito trap data from July 2010 and July 2020 were used to statistically detect changes in adult mosquito activity before and after treatment with Malathion 95®ULV (2010) and DeltaGard®20EW (2020). Landscape features surrounding traps that were frequently mosquito hot spots and traps that were never hot spots were compared by applying spatial analysis tools. Kriging analysis was performed to estimate changes in mosquito activity citywide. Wing lengths were used as a proxy for adult mosquito body size to determine if body size is positively correlated with mosquito longevity. Results: No significant difference was detected when comparing post-spray mosquito trap counts in treated and untreated (experimental control) locations in July 2010 or July 2020. When daily changes in mosquito activity were analyzed in the treatment group, a significant decrease in mosquito activity was detected in the group treated with Malathion 95ULV® the day after treatment with the effect lasting for two days. No significant daily changes in mosquito activity were detected after DeltaGard®20EW application. There were no significant differences between mosquito activity hot spot locations and non-hot spot locations when tree density, proximity to rivers, proximity to parks/open spaces, or parks/opem spaces density were analyzed spatially. However, hot spots were found to have more trees in a 50m radius and to be closer to rivers. A significant positive correlation between longevity and adult mosquito body size (Ae. vexans) was detected. Conclusions: The lack of significance when comparing traps in areas treated with DeltaGard®20EW and untreated areas indicates that changes may be due to natural background fluctuations in mosquito activity and population. Significant daily decreases in mosquito activity in the treatment groups were detected the day following Malathion 95ULV® treatment. The lack of significance in the DeltaGard®20EW trials may be due to issues with modelling like a lack of untreated trap locations for comparison, a starting population that was too low to detect significant changes, a lack of specific knowledge about the cumulative egg bank and Ae. vexans biology, too few trap locations, traps being placed strategically instead of randomly, the challenge of measuring background mosquito activity and population dynamics, and a lack of meteorological and landscape data specific to trap locations. Measuring adulticide efficacy in wild mosquitoes and creating models to analyze changes in their activity is challenging. A significant positive correlation between longevity and adult mosquito body size was detected for Ae. vexans mosquitoes, although further research should track specific cohorts of mosquitoes over time.

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Laboratory Tests of the Residual Effect of Deltamethrin on Vegetation Against Aedes albopictus

Cited by 5 publications

References 21 publications

A Review of Studies Evaluating Insecticide Barrier Treatments for Mosquito Control From 1944 to 2018

A Review of Studies Evaluating Insecticide Barrier Treatments for Mosquito Control From 1944 to 2018

Review of ten-years presence of Aedes albopictus in Spain 2004–2014: known distribution and public health concerns

A Spatial Analysis Evaluation of DeltaGard®20EW Operational Efficacy in Winnipeg, Manitoba for Adult Mosquito Control

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