Results 91 to 100 of about 65,455 (291)

High Frequencies of kdr Mutation and Chikungunya Infection in Aedes aegypti Population from Minas Gerais, Brazil

Pathogens
The Chikungunya virus (CHIKV) presents global health challenges, with Brazil experiencing outbreaks since its introduction in 2014. In 2023, following a CHIKV outbreak in Minas Gerais (MG), social media was used to optimize an entomological survey aimed ...
Pedro Augusto Almeida-Souza, Cirilo Henrique de Oliveira, Luiz Paulo Brito, Thaynara de Jesus Teixeira, Iago Alves Celestino, Gabriele Barbosa Penha, Ronaldo Medeiros dos Santos, Wexley Miranda Mendes, Bergmann Morais Ribeiro, Fabrício Souza Campos, Paulo Michel Roehe, Natalia Rocha Guimarães, Felipe C. M. Iani, Ademir Jesus Martins, Filipe Vieira Santos de Abreu   +14 more
doaj   +1 more source

Temporal and spatial variations in lice numbers on salmon farms in the Hardanger fjord 2004-06 [PDF]

, 2009
The long and narrow Hardanger fjord in western Norway has a high density of salmon farms and has had severe salmon lice, Lepeophtheirus salmonis, problems.
Bjørn, Bricknell, Bush, Finstad, Hahnenkamp, Heuch, Heuch, Heuch, Heuch, Jaworski, Johnson, Johnson, Johnson, Kålås, Lees, McLean, Olsen, Olsen, Otterå, Revie, Revie, Stone, Tucker, Tully   +23 more
core   +1 more source

Molecular evidence of sequential evolution of DDT- and pyrethroid-resistant sodium channel in Aedes aegypti

PLoS Neglected Tropical Diseases, 2019
Background Multiple mutations in the voltage-gated sodium channel have been associated with knockdown resistance (kdr) to DDT and pyrethroid insecticides in a major human disease vector Aedes aegypti.
Mengli Chen, Yuzhe Du, Shaoying Wu, Y. Nomura, Guonian Zhu, B. Zhorov, K. Dong   +6 more
semanticscholar   +1 more source

Seedling resistance and chemical defenses against Psylliodes chrysocephala: the roles of seed age and sinapinic acid in Sinapis alba and Brassica napus

Pest Management Science, EarlyView.
The cabbage stem flea beetle (Psylliodes chrysocephala) is a major pest of winter oilseed rape (Brassica napus). We tested B. napus and Sinapis alba seedlings for feeding resistance and underlying chemical defenses. S. alba was least damaged, while metabolite profiles revealed resistance‐linked compounds, highlighting breeding potential for insect ...
Daniel Rüde, Samantha M Cook, Bernd Ulber, Tobias Pöhnl, Michael Rostás   +4 more
wiley   +1 more source

\ud Detection and Monitoring of Insecticide Resistance in Malaria Vectors in Tanzania Mainland\ud [PDF]

, 2011
\ud Vector control is a major component of the global strategy for malaria control which aims to prevent parasite transmission mainly through interventions targeting adult Anopheline vectors.
Batengana , B, Chacha , M, Emidi , B, Kabula, B, Kisinza , W, Kitau , J, Magesa, S, Malima , R, Massue , D, Matowo , J, Msangi , S, Mweya, C, Sindato , C, Tungu, P   +13 more
core  

Investigating zeta‐cypermethrin resistance stability in California Drosophila suzukii populations

Pest Management Science, EarlyView.
After continuous selection and removal of selection pressure in spotted‐wing Drosophila, zeta‐cypermethrin resistance remained stable over several generations. Following a population bottleneck, zeta‐cypermethrin resistance increased without selection, highlighting the importance of insecticide rotation.
Nicolas Buck, Fatemeh Ganjisaffar, Frank G. Zalom   +2 more
wiley   +1 more source

Effects of a cypermethrin-based pesticide on early life stages of common carp (Cyprinus carpio L.)

Veterinární Medicína, 2015
The aim of this study was to assess the effects of Cyperkill 25 EC (a.i. cypermethrin 250 g/l) on cumulative mortality, growth indices, and ontogenetic development of embryos and larvae of common carp (Cyprinus carpio L.).
Z. Richterova, J. Machova, A. Stara, J. Tumova, J. Velisek, M. Sevcikova, Z. Svobodova   +6 more
doaj   +1 more source

Circadian rhythms in insecticide susceptibility, metabolic enzyme activity, and gene expression in Cimex lectularius (Hemiptera: Cimicidae). [PDF]

, 2019
Many insect species display daily variation of sensitivity to insecticides when they are exposed to the same concentration at different times during the day. To date, this has not been investigated in bed bugs.
Doggett, Stephen L, Khalid, Muhammad Fazli, Lee, Chow-Yang, Veera Singham, G   +3 more
core   +3 more sources

Small molecules as arthropod kinin receptor antagonists, feeding modulators, or novel mosquitocidal agents

Pest Management Science, EarlyView.
A two‐pronged screen of small molecules – (1) on recombinant kinin receptor and (2) through topical application – identifies kinin receptor antagonists, feeding behavior modulators, and new mosquitocidal molecules. Abstract BACKGROUND Aedes aegypti and Culex quinquefasciatus mosquitoes are primary vectors for numerous human and animal pathogens and ...
Bianca M. Henriques‐Santos, Patricia V. Pietrantonio   +1 more
wiley   +1 more source

Signatures of Insecticide Selection in the Genome of Drosophila melanogaster

G3: Genes, Genomes, Genetics, 2018
Resistance to insecticides has evolved in multiple insect species, leading to increased application rates and even control failures. Understanding the genetic basis of insecticide resistance is fundamental for mitigating its impact on crop production and
David Duneau, Haina Sun, Jonathan Revah, Keri San Miguel, Henry D. Kunerth, Ian V. Caldas, Philipp W. Messer, Jeffrey G. Scott, Nicolas Buchon   +8 more
doaj   +1 more source