Anti‐feeding and insecticidal efficacy of a topical administration of dinotefuran–pyriproxyfen–permethrin spot‐on (<scp>V</scp>ectra® <scp>3D</scp>) on mice against <i><scp>S</scp>tegomyia albopicta</i> (= <i><scp>A</scp>edes albopictus</i>)

Tahir, Djamel; Davoust, Bernard; Alméras, Lionel; Bérenger, Jean-Michel; Varloud, Marie; Parola, Philippe

doi:10.1111/mve.12243

Cited by 8 publications

(11 citation statements)

References 38 publications

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“…Aedes aegypti (Bora strain) and Ae. albopictus (Marseille strain, MRS) mosquitoes were raised in the laboratory using standard methods as previously described [ 40 , 41 ]. Only imago non-engorged female mosquitoes were included in the study.…”

Section: Methodsmentioning

confidence: 99%

Improvement of mosquito identification by MALDI-TOF MS biotyping using protein signatures from two body parts

et al. 2018

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BackgroundMatrix-assisted laser desorption/ionization time-of-flight mass spectrometry technology (MALDI-TOF MS) is an innovative tool that has been shown to be effective for the identification of numerous arthropod groups including mosquitoes. A critical step in the implementation of MALDI-TOF MS identification is the creation of spectra databases (DB) for the species of interest. Mosquito legs were the body part most frequently used to create identification DB. However, legs are one of the most fragile mosquito compartments, which can put identification at risk. Here, we assessed whether mosquito thoraxes could also be used as a relevant body part for mosquito species identification using a MALDI-TOF MS biotyping strategy; we propose a double DB query strategy to reinforce identification success.MethodsThoraxes and legs from 91 mosquito specimens belonging to seven mosquito species collected in six localities from Guadeloupe, and two laboratory strains, Aedes aegypti BORA and Aedes albopictus Marseille, were dissected and analyzed by MALDI-TOF MS. Molecular identification using cox1 gene sequencing was also conducted on representative specimens to confirm their identification.ResultsMS profiles obtained with both thoraxes and legs were highly compartment-specific, species-specific and species-reproducible, allowing high identification scores (log-score values, LSVs) when queried against the in-house MS reference spectra DB (thorax LSVs range: 2.260–2.783, leg LSVs range: 2.132–2.753).ConclusionsBoth thoraxes and legs could be used for a double DB query in order to reinforce the success and accuracy of MALDI-TOF MS identification.Electronic supplementary materialThe online version of this article (10.1186/s13071-018-3157-1) contains supplementary material, which is available to authorized users.

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Section: Methodsmentioning

confidence: 99%

Improvement of mosquito identification by MALDI-TOF MS biotyping using protein signatures from two body parts

et al. 2018

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“…Other less common topics were: the use of PPF in novel products (bed nets [65,91], paints [92], release blocks [93], sugar baits [94,95], candles [96], topical treatments [97][98][99] ovitraps [100,101], resin sticks [102][103][104], and controlled release mesh [105]; the effect of PPF on the termination of the diapause process [106]; and PPF's environmental persistence and effect on non-target organisms [107]. There was also a review written in 2008 by a PPF manufacturer that focused on the different uses for PPF as a larvicide against nuisance mosquitoes and vectors of dengue and malaria [108].…”

Section: Study Characteristicsmentioning

confidence: 99%

Use of pyriproxyfen in control of Aedes mosquitoes: A systematic review

et al. 2020

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Background Dengue is the most rapidly spreading arboviral disease in the world. The current lack of fully protective vaccines and clinical therapeutics creates an urgent need to identify more effective means of controlling Aedes mosquitos, principally Aedes aegypti, as the main vector of dengue. Pyriproxyfen (PPF) is an increasingly used hormone analogue that prevents juvenile Aedes mosquitoes from becoming adults and being incapable of transmitting dengue. The objectives of the review were to (1) Determine the effect of PPF on endpoints including percentage inhibition of emergence to adulthood, larval mortality, and resistance ratios; and (2) Determine the different uses, strengths, and limitations of PPF in control of Aedes. A systematic search was applied to Pubmed, EMBASE, Web of Science, LILACS, Global Health, and the Cochrane database of Systematic Reviews. Out of 1,369 records, 90 studies met the inclusion criteria. Nearly all fit in one of the following four categories 1) Efficacy of granules, 2) Auto-dissemination/horizontal transfer, 3) use of ultra-low volume thermal fogging (ULV), thermal fogging (TF), or fumigant technologies, and 4) assessing mosquito resistance. PPF granules had consistently efficacious results of 90-100% inhibition of emergence for up to 90 days. The evidence is less robust but promising regarding PPF dust for auto-dissemination and the use of PPF in ULV, TF and fumigants. Several studies also found that while mosquito populations were still susceptible to PPF, the lethal concentrations increased among temephos-resistant mosquitoes compared to reference strains. The evidence is strong that PPF does increase immature mortality and adult inhibition in settings represented in the included studies, however future research should focus on areas where there is less evidence (e.g. auto-dissemination, sprays) and new use cases for PPF. A better understanding of the biological mechanisms of cross-resistance between PPF, temephos, and other insecticides will allow control programs to make better informed decisions.

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“…The Ae. albopictus MRS strain originated from a field collection of larvae of Marseille city (south of France) [23]. The Ae.…”

Section: Mosquitoes and Exuviae Collectionmentioning

confidence: 99%

“…aegypti Bora strain was provided by the Dr. Fabrice Chandre, the scientific supervisor of the "Vectopole center" (IRD, Montpelier, France). Both species were reared in the same conditions as presented previously [23]. For egg production, blood-meals were given through a parafilm-membrane (Hemotek membrane feeding systems; Discovery Workshops, Accrington, UK) as previously described [21].…”

Section: Mosquitoes and Exuviae Collectionmentioning

confidence: 99%

Identification of Aedes mosquitoes by MALDI-TOF MS biotyping using protein signatures from larval and pupal exuviae

Nebbak

Alméras

2020

Parasites Vectors

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Background: Matrix-assisted laser desorption/ionization time-of-flight mass spectrometry (MALDI-TOF MS) biotyping is an innovative strategy, applied successfully for the identification of numerous arthropod families including mosquitoes. The effective mosquito identification using this emerging tool was demonstrated possible at different steps of their life-cycle, including eggs, immature and adult stages. Unfortunately, for species identification by MS, the euthanasia of the mosquito specimen is required. Methods:To avoid mosquito euthanasia, the present study assessed whether aedine mosquitoes could be identified by MALDI-TOF MS biotyping, using their respective exuviae. In this way, exuviae from the fourth-instar and pupal stages of Aedes albopictus and Aedes aegypti were submitted to MALDI-TOF MS analysis.Results: Reproducible and specific MS spectra according to aedine species and stage of exuviae were observed which were objectified by cluster analyses, composite correlation index (CCI) tool and principal components analysis (PCA). The query of our reference MS spectra database (DB) upgraded with MS spectra of exuviae from fourth-instar larvae and pupae of both Aedes species revealed that 100% of the samples were correctly classified at the species and stage levels. Among them, 93.8% (135/144) of the MS profiles reached the threshold log score value (LSV > 1.8) for reliable identification. Conclusions:The extension of reference MS spectra DB to exuviae from fourth-instar and pupal stages made now possible the identification of mosquitoes throughout their life-cycle at aquatic and aerial stages. The exuviae presenting the advantage to avoid specimen euthanasia, allowing to perform complementary analysis on alive mosquitoes.

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Anti‐feeding and insecticidal efficacy of a topical administration of dinotefuran–pyriproxyfen–permethrin spot‐on (Vectra® 3D) on mice against Stegomyia albopicta (= Aedes albopictus)

Cited by 8 publications

References 38 publications

Improvement of mosquito identification by MALDI-TOF MS biotyping using protein signatures from two body parts

Improvement of mosquito identification by MALDI-TOF MS biotyping using protein signatures from two body parts

Use of pyriproxyfen in control of Aedes mosquitoes: A systematic review

Identification of Aedes mosquitoes by MALDI-TOF MS biotyping using protein signatures from larval and pupal exuviae

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