Efficacy of polydimethylsiloxane against Culex pipiens (Diptera: Culicidae)

Nikolaidou, Anastasia J.; Ioannou, Charalampos S.; Papadopoulos, Nikos T.; Athanassiou, Christos G.

doi:10.1007/s11356-021-13075-6

Cited by 1 publication

(6 citation statements)

References 28 publications

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“…PDMS has been also found to be effective when applied at concentrations that are lower than its label rate and has an oviposition deterrence action (Nikolaidou et al 2021). Diflubenzuron and temephos showed similar insecticidal and residual levels for all series of bioassays.…”

Section: Discussionmentioning

confidence: 99%

“…At the same time, the combined application of PDMS with other active ingredients showed no additive effects, probably due to the increased PDMS efficacy (Rumbos and Athanassiou 2020 ). PDMS has been also found to be effective when applied at concentrations that are lower than its label rate and has an oviposition deterrence action (Nikolaidou et al 2021 ).…”

Section: Discussionmentioning

confidence: 99%

“…Spinosad that is based on metabolites of the actinomycete Saccharopolyspora spinosa has been proved very effective against different species of mosquitoes as well (Hertlein et al 2011 ). Recently, several inert materials such as the polydimethylsiloxane (PDMS) have been also assessed successfully as larvicides, due to their incontestable advantages, which combine low levels of interaction with the environment, mechanical (non-neurotoxic) mode of action, and considerable residual activity (Bukhari and Knols 2009 ; Mbare et al 2014 ; Rumbos and Athanassiou 2020 ; Nikolaidou et al 2021 ). Due to its physical mode of action PDMS (a monomolecular film, which act on mosquitoes by closing off their respiratory structures and finally leading to suffocation) and its friendly environmental profile, many countries have exempted it from formal registration as a biocide (Bukhari and Knols 2009 ; Nikolaidou et al 2021 ).…”

Section: Introductionmentioning

confidence: 99%

“…Recently, several inert materials such as the polydimethylsiloxane (PDMS) have been also assessed successfully as larvicides, due to their incontestable advantages, which combine low levels of interaction with the environment, mechanical (non-neurotoxic) mode of action, and considerable residual activity (Bukhari and Knols 2009 ; Mbare et al 2014 ; Rumbos and Athanassiou 2020 ; Nikolaidou et al 2021 ). Due to its physical mode of action PDMS (a monomolecular film, which act on mosquitoes by closing off their respiratory structures and finally leading to suffocation) and its friendly environmental profile, many countries have exempted it from formal registration as a biocide (Bukhari and Knols 2009 ; Nikolaidou et al 2021 ). With the exception of temephos and spinosad, which are not registered for mosquito control in EU anymore, diflubenzuron, S-methoprene, Bti , and PDMS are extensively used in many EU countries (Grigoraki et al 2017 ; Bruehl et al 2020 ; Nikolaidou et al 2021 ).…”

Section: Introductionmentioning

confidence: 99%

“…Due to its physical mode of action PDMS (a monomolecular film, which act on mosquitoes by closing off their respiratory structures and finally leading to suffocation) and its friendly environmental profile, many countries have exempted it from formal registration as a biocide (Bukhari and Knols 2009 ; Nikolaidou et al 2021 ). With the exception of temephos and spinosad, which are not registered for mosquito control in EU anymore, diflubenzuron, S-methoprene, Bti , and PDMS are extensively used in many EU countries (Grigoraki et al 2017 ; Bruehl et al 2020 ; Nikolaidou et al 2021 ).…”

Section: Introductionmentioning

confidence: 99%

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Residual efficacy of selected larvicides against Culex pipiens pipiens (Diptera: Culicidae) under laboratory and semi-field conditions

Sakka

Ioannou

Papadopoulos

et al. 2023

Environ Sci Pollut Res

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Mosquitoes are a threat worldwide since they are vectors of important pathogens and parasites such as malaria, dengue, yellow fever, and West Nile. The residual toxicity of several commercial mosquito larvicides was evaluated for the control of Culex pipiens pipiens under controlled laboratory and semi-field conditions during late spring and summer of 2013. The evaluation included six different active ingredient formulations, i.e., diflubenzuron Du-Dim), Bacillus thuringiensis var. israelensis (Bti) (Vectobac), spinosad (Mozkill), S-methoprene (Biopren), temephos (Abate), and polydimethylsiloxane (PDMS) (Aquatain), that are currently registered of and had been registered in the past for mosquito control. Under controlled laboratory conditions, the residual activity ranged from 1 week (S-methoprene) up to 2 months (spinosad, PDMS). Exposure of larvicides under semi-field conditions resulted in noticeable differences regarding their efficacy as compared to the laboratory bioassays. Exposure of S-methoprene, Bti, and spinosad, for up to 3 days, resulted in similar adult emergence to the controls. On the other hand, the residual efficacy of diflubenzuron, temephos, and PDMS ranged from 14 to 28 days, depending on the season of exposure. Longevity and fecundity of adults that had emerged from surviving larvae, in most of the cases tested, did not differ significantly from that of the controls. The results of the present study demonstrate the necessity of both field and laboratory studies to draw safe conclusions regarding the efficacy of larvicides against mosquitoes and the selection of the proper formulation for each application scenario. In addition, defining the seasonal variation in the residual toxicity of the tested formulations could be useful for improving mosquitos’ management programs.

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Section: Discussionmentioning

confidence: 99%

Section: Discussionmentioning

confidence: 99%