Host feeding responses of Aedes aegypti (L.) exposed to deltamethrin

Boonyuan, Wasana; Kongmee, Monthathip; Bangs, Michael J.; Prabaripai, Atachariya; Chareonviriyaphap, Theeraphap

doi:10.1111/j.1948-7134.2011.00177.x

Cited by 13 publications

(11 citation statements)

References 20 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Similarly, excito-repellency studies using lower concentrations of deltamethrin showed that mated Ae. aegypti exhibited significant differences in escape responses with and without hosts present [59]. This type of knowledge is critical to define the expected efficacy of a BGS trap in a repellent focused push-pull strategy.…”

Section: Discussionmentioning

confidence: 99%

Effect of Aedes aegypti exposure to spatial repellent chemicals on BG-Sentinel™ trap catches

et al. 2013

Self Cite

View full text Add to dashboard Cite

BackgroundAn integrated approach to reduce densities of adult Aedes aegypti inside homes is currently being evaluated under experimentally controlled field conditions. The strategy combines a spatial repellent (SR) treatment (applied indoors) with the Biogents Sentinel™ (BGS) mosquito trap positioned in the outdoor environment. In essence, when combined, the goal is to create a push-pull mechanism that will reduce the probability of human-vector contact. The current study measured BGS recapture rates of Ae. aegypti test cohorts that were exposed to either SR or control (chemical-free) treatments within experimental huts. The objective was to define what, if any, negative impact SR may have on BGS trap efficacy (i.e., reduced BGS collection).MethodsAedes aegypti females were exposed to SR compounds within experimental huts in the form of either treated fabric (DDT and transfluthrin) or mosquito coil (metofluthrin). Test cohorts were released within individual screen house cubicles, each containing 4 BGS traps, following SR exposure according to treatment. Two separate test cohorts were evaluated: (i) immediate release (IR) exposed from 06:00–12:00 hours and released at 12:00 hours and (ii) delayed release (DR) exposed from12:00–18:00 hours and released at 05:30 hours the following day. BGS recapture was monitored at 09:30, 13:30 and 15:30 hours and the cumulative recapture by time point quantified.ResultsExposure of Ae. aegypti females to either DDT or metofluthrin did not significantly impact BGS capture as compared to cohorts of non-exposed females. This was true for both IR and DR exposure populations. IR cohorts exposed to transfluthrin resulted in significantly lower BGS recapture compared to matched controls but this effect was primarily due to high mosquito mortality during transfluthrin trials.ConclusionOur data indicate no more than minor and short-lived impacts (i.e., reduced attraction) on BGS trap catches following exposure to the pyrethroid compounds transfluthrin and metofluthrin and no change in recapture densities using DDT as compared to matched controls. These findings suggest a combined SR and BGS approach to vector control could function as a push-pull strategy to reduce Ae. aegypti adults in and around homes.

show abstract

Section: Discussionmentioning

confidence: 99%

Effect of Aedes aegypti exposure to spatial repellent chemicals on BG-Sentinel™ trap catches

et al. 2013

Self Cite

View full text Add to dashboard Cite

show abstract

“…Pyrethroid, one of the most prevalent insecticides, interacts with ion channels, which disrupt the transmembrane potentials, and damage the insect nervous system [7]. Deltamethrin (DM), a representative synthetic pyrethroid insecticide, is widely used for bed net impregnation and residual spraying for mosquito control [8], [9]. Widespread and improper use of insecticides has induced the development of insecticide resistance [10], [11], which has become the main obstacle for the mosquito-borne disease management [12]–[14].…”

Section: Introductionmentioning

confidence: 99%

Identification of Proteasome Subunit Beta Type 6 (PSMB6) Associated with Deltamethrin Resistance in Mosquitoes by Proteomic and Bioassay Analyses

Sun

et al. 2013

PLoS ONE

View full text Add to dashboard Cite

Deltamethrin (DM) insecticides are currently being promoted worldwide for mosquito control, because of the high efficacy, low mammalian toxicity and less environmental impact. Widespread and improper use of insecticides induced resistance, which has become a major obstacle for the insect-borne disease management. Resistance development is a complex and dynamic process involving many genes. To better understand the possible molecular mechanisms involved in DM resistance, a proteomic approach was employed for screening of differentially expressed proteins in DM-susceptible and -resistant mosquito cells. Twenty-seven differentially expressed proteins were identified by two-dimensional electrophoresis (2-DE) and mass spectrometry (MS). Four members of the ubiquitin-proteasome system were significantly elevated in DM-resistant cells, suggesting that the ubiquitin-proteasome pathway may play an important role in DM resistance. Proteasome subunit beta type 6 (PSMB6) is a member of 20S proteasomal subunit family, which forms the proteolytic core of 26S proteasome. We used pharmaceutical inhibitor and molecular approaches to study the contributions of PSMB6 in DM resistance: the proteasome inhibitor MG-132 and bortezomib were used to suppress the proteasomal activity and siRNA was designed to block the function of PSMB6. The results revealed that both MG-132 and bortezomib increased the susceptibility in DM-resistant cells and resistance larvae. Moreover, PSMB6 knockdown decreased cellular viability under DM treatment. Taken together, our study indicated that PSMB6 is associated with DM resistance in mosquitoes and that proteasome inhibitors such as MG-132 or bortezomib are suitable for use as a DM synergist for vector control.

show abstract

“…Value of diazinon 96 h LC 50 was 0.8 mg/l for zebra fish (Brachydanio rerio) and it was eight mg/l for guppy (Poecilia reticulata) (Adedeji et al, 2008;Keizer et al, 1991). Getaway reaction of unmated and mated nulliparous Aedes aegypti mosquitoes were estimated using three different concentrations of deltamethrin in the presence or absence of a live organism host (Boonyuan et al, 2011). Although deltamethrin is thought to be lower toxic in field conditions due to its adsorption to sediment, these data are useful to potential ecosystem risk evaluation (Viran et al, 2003).…”

Section: Resultsmentioning

confidence: 99%

Evaluation of mosquito Culex quinquefasciatus mortality rate in the face of lethal concentration of deltamethrin and diazinon toxins

Hosseinnia

Tarkhani

Darabitabar

et al. 2017

Transylvanian Review of Systematical and Ecological Research

View full text Add to dashboard Cite

Because of huge consumption for agricultural purpose, presence of pesticides in surface waters of Golestan province (north east of Iran) is very common. These pesticides finally could be stored in aquatic ecosystems and have proven toxic effects on aquatic animals. Culex quinquefasciatus is one of the most common aquatic insects living mainly in the wetlands. The aim of this study was to determine the acute toxicity of deltamethrin and diazinon as potentially perilous organic pesticides and to assess mortality effects of these chemicals on the mosquito Culex quinquefasciatus in the form of LC50.

show abstract

Host feeding responses of Aedes aegypti (L.) exposed to deltamethrin

Cited by 13 publications

References 20 publications

Effect of Aedes aegypti exposure to spatial repellent chemicals on BG-Sentinel™ trap catches

Effect of Aedes aegypti exposure to spatial repellent chemicals on BG-Sentinel™ trap catches

Identification of Proteasome Subunit Beta Type 6 (PSMB6) Associated with Deltamethrin Resistance in Mosquitoes by Proteomic and Bioassay Analyses

Evaluation of mosquito Culex quinquefasciatus mortality rate in the face of lethal concentration of deltamethrin and diazinon toxins

Contact Info

Product

Resources

About