Results 61 to 70 of about 19,641 (207)

Study of Herbal Topical Repellent Made of Betel Leaves (Piper betle) and Patchouli Oil (Pogostemon cablin) Mixture Against Yellow Fever Mosquito (Aedes aegypti)

open access: yesBiotropia: The Southeast Asian Journal of Tropical Biology, 2015
Introduction: Exploration of plants as natural repellants to avoid Aedes aegypti mosquitoes that transmit dengue virus to human is worthy. Betel vine leaves (Piper betle L.) could be used as the material of repellant.The study is aimed to test the ...
Mutiara Widawati, M. Umar Riandi
doaj   +1 more source

Exploring the potential of using male‐killing endosymbionts to induce female‐biased insect populations for enhanced biomass production

open access: yesInsect Science, EarlyView.
Overview of the mindset and long‐term goals with the approach suggested in this study. We provide a first proof of concept that male‐killing endosymbionts can be used to establish female biased populations with higher production efficiency than populations with a 50/50 sex ratio. This biological tool can have marked positive impact on future commercial
Stine F. Laursen   +4 more
wiley   +1 more source

Estabelecimento de metodologia para alimentação de Aedes aegypti (Diptera-Culicidae) em camundongos swiss e avaliação da toxicidade e do efeito residual do óleo essencial de Tagetes minuta L (Asteraceae) em populações de Aedes aegypti Establishment of the feeding methodology of Aedes aegypti (Diptera-Culicidae) in Swiss mice and evaluation of the toxicity and residual effect of essential oil from Tagetes minuta L (Asteraceae), in populations of Aedes aegypti

open access: yesRevista da Sociedade Brasileira de Medicina Tropical, 2009
Objetivou-se desenvolver um procedimento de alimentação de fêmeas de Aedes aegypti que não cause estresse em camundongo swiss e avaliar a toxicidade e o efeito residual do óleo essencial de Tagetes minuta L (Asteraceae) em populações de Aedes aegypti ...
Waldemir Pereira Lima   +4 more
doaj   +1 more source

Conserved dimerization architecture in C‐type lectins from virus‐vector mosquitoes

open access: yesThe FEBS Journal, EarlyView.
C‐type lectins (CTLs) are involved in the detection of viral/microbial carbohydrates. We studied a family of soluble CTLs in the mosquito Aedes aegypti, which acts as a vector for viruses like dengue and Zika. Using crystallography, biophysics, and structure prediction approaches, we found that these proteins consistently pair together in the same ...
Mattia Bertinelli   +6 more
wiley   +1 more source

Spatial distribution and esterase activity in populations of Aedes (Stegomyia) aegypti (Linnaeus) (Diptera: Culicidae) resistant to temephos

open access: yesRevista da Sociedade Brasileira de Medicina Tropical, 2013
INTRODUCTION: The need for studies that describe the resistance patterns in populations of Aedes aegypti (Linnaeus) in function of their region of origin justified this research, which aimed to characterize the resistance to temephos and to obtain ...
Wanessa Porto Tito Gambarra   +5 more
doaj   +3 more sources

Mosquito Larvicidal Activities and Chemical Compositions of the Essential Oils of Growing Wild in Vietnam

open access: yesNatural Product Communications, 2019
Dengue fever and dengue hemorrhagic fever are hyperendemic to Vietnam with frequent outbreaks and epidemics. Control of the vectors for dengue viruses, Aedes mosquitoes, is critical to maintain control of this disease.
Nguyen Huy Hung   +9 more
doaj   +1 more source

Aedes aegypti (L.) survival after exposure to ivermectin.

open access: yesThe Southeast Asian journal of tropical medicine and public health, 2013
Ivermectin has been shown in in vitro studies to have insecticidal properties against Aedes aegypti adults. This study aimed to assess these properties in vivo. Aedes aegypti survival was not affected by acquiring a blood meal from humans both 5 hours and 24 hours after ingestion of a typical dose of ivermectin.
Whitehorn, J, Thi, L, Dui, L, Simmons, C
openaire   +3 more sources

Transcriptional responses of Aedes aegypti chemosensory tissues in response to volatile DEET and citronella oil

open access: yesInsect Molecular Biology, EarlyView.
Aedes aegypti females were significantly repelled by both volatile DEET and citronella oil in comparison to control (ethanol‐exposed) mosquitoes. Global gene expression changes were largest in the mosquito mouthparts, with notable downregulation of the three subunits comprising the mosquito CO2 receptor (Gr1, 2 and 3).
Ivan Drahun   +3 more
wiley   +1 more source

Atividade antimicrobiana no combate as larvas do mosquito Aedes aegypti: Homogeneização dos óleos essenciais do linalol e eugenol

open access: yesEducación Química, 2015
Na busca por controle químico alternativo contra Aedes aegypti L., vários estudos são desenvolvidose incentivados a fim de encontrar novas substâncias inseticidas de origem vegetal e, neste contextoos óleos essenciais têm se mostrado muito promissor ...
Álvaro Itaúna Schalcher Pereira   +4 more
doaj   +1 more source

Malaria mosquito antimicrobial defence requires immunity and detoxification gene regulation by Lola

open access: yesInsect Molecular Biology, EarlyView.
Malaria mosquito antimicrobial defence requires upregulation of lola. Attenuation of lola in the midgut of Anopheles albimanus mosquitoes inhibits the upregulation of immunity genes induced by challenge. Putative target genes of the Lola transcription factor were revealed by lola attenuation, including Cecropin‐C, Draper, PPAF2, Clip‐domain serine ...
Heidi Espadas‐Álvarez   +1 more
wiley   +1 more source

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