Results 81 to 90 of about 2,195,820 (255)

Sub-lethal exposure to chlorfenapyr reduces the probability of developing Plasmodium falciparum parasites in surviving Anopheles mosquitoes

Parasites & Vectors, 2023
Background Pyrethroid resistance in the key malaria vectors threatens the success of pyrethroid-treated nets. To overcome pyrethroid resistance, Interceptor® G2 (IG2), a ‘first-in-class’ dual insecticidal net that combines alpha-cypermethrin with ...
Prisca A. Kweyamba, Lorenz M. Hofer, Ummi A. Kibondo, Rehema Y. Mwanga, Rajabu M. Sayi, Fatuma Matwewe, James W. Austin, Susanne Stutz, Sarah J. Moore, Pie Müller, Mgeni M. Tambwe   +10 more
doaj   +1 more source

Transcriptomic resources and functional validation of RNAi in the cabbage seedpod weevil, Ceutorhynchus obstrictus

Pest Management Science, EarlyView.
Transcriptome sequencing of Ceutorhynchus obstrictus revealed RNA interference (RNAi) targets; double‐stranded RNA microinjection reduced transcript levels and increased mortality, with αCOP and Rop showing strongest lethal effects, indicating promising RNAi‐based pest control candidates.
Apurva Vikas Sabnis, Triin Kallavus, Éricmar Avila Dos Santos, Liina Soonvald, Riina Kaasik, Silva Vilumets, Clauvis Nji Tizi Taning, Kristof De Schutter, Eve Veromann   +8 more
wiley   +1 more source

Insecticide resistance in the West African malaria vector Anopheles gambiae and investigation of alternative tools for its delay [PDF]

, 2009
There is a current policy to eliminate malaria in the African continent. Pyrethroid-incorporated Long Lasting Insecticidal Nets (LLINs) and/or Indoor Residual Spraying (IRS) are the chemical weapons being deployed to achieve that goal. Rather worryingly,
N'Guessan, R.
core  

Control of pyrethroid-resistant Anopheles gambiae and Culex quinquefasciatus mosquitoes with chlorfenapyr in Benin.

, 2009
OBJECTIVE: To compare the efficacy of chlorfenapyr applied on mosquito nets and as an indoor residual spray against populations of Anopheles gambiae and Culex quinquefasciatus in an area of Benin that shows problematic levels of pyrethroid resistance ...
Knols, B.G.J., Odjo, Abiba, Rowland, Mark, Akogbeto, Martin, Boko, Pelagie, Odjo, A., Rowland, M., Knols, Bart, Akogbeto, M., N'Guessan, Raphael, Boko, P., N'Guessan, R.   +11 more
core   +1 more source

Do holes in long-lasting insecticidal nets compromise their efficacy against pyrethroid resistant Anopheles gambiae and Culex quinquefasciatus? : Results from a release-recapture study in experimental huts [PDF]

, 2015
Resistance of malaria vectors to pyrethroids threatens the effectiveness of long-lasting insecticidal nets (LLINs) as a tool for malaria control. Recent experimental hut and observational studies in Benin show that pyrethroid resistance reduces the ...
Sébastien Boyer (2162560), Christophe Rogier (81718), Aziz Bouraima (197015), Raphael N’Guessan (362626), Rogier, Christophe, Vincent Corbel (63075), Sanjiarizaha Randriamaherijaona (3569684), Briët, Olivier J. T., Briët, Olivier J T, Sanjiarizaha Randriamaherijaona, Randriamaherijaona, Sanjiarizaha, Sébastien Boyer, Olivier J T Briët, Aziz Bouraima, N'Guessan, Raphael, Olivier Briët (142988), Bouraima, Aziz, Briët, Olivier JT, Vincent Corbel, Boyer, Sébastien, Corbel, Vincent, Christophe Rogier, Raphael N’Guessan   +22 more
core   +1 more source

Emerging Pyrethroid Resistance among Anopheles arabiensis in Kenya [PDF]

The American Journal of Tropical Medicine and Hygiene, 2018
Vector control programs, particularly in the form of insecticide-treated bed nets (ITNs), are essential for achieving malaria elimination goals. Recent reports of increasing knockdown resistance (kdr) mutation frequencies for Anopheles arabiensis in Western Kenya heightens the concern on the future effectiveness of ITNs in Kenya. We examined resistance
Hemming-Schroeder, Elizabeth, Strahl, Stephanie, Yang, Eugene, Nguyen, Amanda, Lo, Eugenia, Zhong, Daibin, Atieli, Harrysone, Githeko, Andrew, Yan, Guiyun   +8 more
openaire   +4 more sources

The first report of M918L (super‐kdr) and L932F voltage‐gated sodium channel mutations in the English grain aphid (Sitobion avenae)

Pest Management Science, EarlyView.
The study has identified mutations in the voltage gated sodium channel of the English grain aphid (Sitobion avenae) at M918 and L932, which have not been previously reported in this species. Abstract BACKGROUND The grain aphid, Sitobion avenae Fabricius (Hemiptera: Aphididae), is a vector of yellow dwarf viruses and an important pest of cereals.
Virgile Ballandras, Louise McNamara, James C Carolan, Tom Ruttink, Stephen Byrne   +4 more
wiley   +1 more source

Molecular characterization of western corn rootworm pyrethroid resistance

Pest Management Science, 2020
AbstractBACKGROUNDWestern corn rootworm (WCR) pyrethroid resistance has been confirmed in the western US Corn Belt. Toxicological and biochemical studies indicated that multiple mechanisms of resistance might be involved in the resistance trait, such as enhanced metabolism and/or kdr target‐site mutation(s) in the voltage‐gated sodium channels.
Dariane Souza, Blair D Siegfried, Lance J Meinke, Nicholas J Miller   +3 more
openaire   +3 more sources

Target‐site mutations and phenotypic failure in Myzus persicae against pyrethroids and carbamates in central Europe

Pest Management Science, EarlyView.
Molecular screening of 140 field‐collected Myzus persicae aphids revealed target‐site mutations L1014F, M918L, M918T, and L932F in the sodium channel and S431F in Ace2. The M918L mutation was the primary driver of high pyrethroid (cypermethrin) resistance, while S431F served as a definitive marker for carbamate (pirimicarb) resistance.
Jitka Stara, Jan Hubert, Pavla Pabiskova, Frantisek Kocourek   +3 more
wiley   +1 more source

Chlorfenapyr: a pyrrole insecticide for the control of pyrethroid or DDT resistant Anopheles gambiae (Diptera: Culicidae) mosquitoes.

, 2007
Owing to the development and spread of pyrethroid resistance in Anopheles gambiae in Africa there is an urgent need to develop alternative insecticides to supplement the pyrethroids.
N'Guessan, R, Rowland, M, Boko, P, Yates, A, Odjo, A, Akogbéto, M   +5 more
core   +1 more source