نتایج جستجو برای: aedes larvae

تعداد نتایج: 41770  

Journal: :Revista Facultad Nacional de Agronomía 2021

Aedes aegypti L. is the mosquito vector of yellow fever, dengue, zika, and chikungunya viruses. The prevention control such diseases usually rely on use chemicals, that can cause harm to human health environment. Vegetable oils with larvicidal activity are used as an alternative tool this insect. This study aimed evaluate vegetable from Caryocar coriaceum, Mauritia fIexuosa, Carapa guianensis, ...

Journal: :Memorias do Instituto Oswaldo Cruz 2002
María V Micieli Gerardo Marti Juan J García

In laboratory bioassays we tested the predatory capacity of the copepod Mesocyclops annulatus on Aedes aegypti and Culex pipiens larvae. A single adult female of M. annulatus caused 51.6% and 52.3% mortality of 50 first instar larvae of Ae. aegypti and Cx. pipiens respectively, in a 72 h test period. When alternative food was added to the containers, mortality rates declined to 16% and 10.3% fo...

2017
Kevin J. Vogel Luca Valzania Kerri L. Coon Mark R. Brown Michael R. Strand

Mosquitoes host communities of microbes in their digestive tract that consist primarily of bacteria. We previously reported that Aedes aegypti larvae colonized by a native community of bacteria and gnotobiotic larvae colonized by only Escherichia coli develop very similarly into adults, whereas axenic larvae never molt and die as first instars. In this study, we extended these findings by first...

Journal: :Air Quality, Atmosphere & Health 2021

Abstract Common fragranced consumer products, such as cleaning supplies and personal care emit chiral compounds limonene that have been associated with adverse effects on human health. However, those same abound in nature, at similar concentrations but without the apparent health effects. We investigated whether different types of may elicit biological In this study, we mortality rate mosquito ...

Journal: :Journal of vector ecology : journal of the Society for Vector Ecology 2008
Jinrapa Pothikasikorn Michael J Bangs Rapee Boonplueang Theeraphap Chareonviriyaphap

Ten different mosquito species representing five genera were allowed to feed on human blood containing microfilariae (5.5-6.5 mf/microl) of nocturnal subperiodic Wuchereria bancrofti from Kanchanaburi Province, Thailand. Aedes aegypti, Aedes albopictus, Aedes desmotes, Downsiomyia species (=Finlaya Niveus Group), Culex quinquefasciatus, Anopheles dirus A, An. maculatus, An. minimus, Armigeres s...

Journal: :journal of arthropod-borne diseases 0
walter ceretti-junior department of epidemiology, school of public health, university of são paulo, são paulo, brazil. rafael de-oliveira-christe department of epidemiology, school of public health, university of são paulo, são paulo, brazil and tropical medicine institute, university of são paulo, são paulo, brazil. marco rizzo office of parks and green areas, department of the environment and green areas, são paulo city hall, são paulo, sp, brazil. regina claudia-strobel office of parks and green areas, department of the environment and green areas, são paulo city hall, são paulo, sp, brazil. marco otavio-de-matos-junior laboratory for research into and identification of synanthropic fauna, zoonosis control center, health surveillance coordination unit, municipal health department, são paulo city hall, são paulo, sp, brazil. maria helena-silva-homem-de-mello laboratory for research into and identification of synanthropic fauna, zoonosis control center, health surveillance coordination unit, municipal health department, são paulo city hall, são paulo, sp, brazil.

background: bromeliads can be epiphytic, terrestrial or saxicolous and use strategies to allow water to be re­tained in their leaf axils, where various arthropods can be found. these include mosquitoes, whose larvae are the most abundant and commonly found organisms in the leaf axils. the objective of this study was to look for im­mature forms of mosquitoes (the larval and pupal stages) in brom...

Journal: :journal of arthropod-borne diseases 0
ruchi yadav vector management division, defence research and development establishment, gwalior, india. varun tyagi vector management division, defence research and development establishment, gwalior, india. sachin n tikar vector management division, defence research and development establishment, gwalior, india. ajay k sharma vector management division, defence research and development establishment, gwalior, india. murlidhar j mendki vector management division, defence research and development establishment, gwalior, india. ashok k jain school of studies botany, jiwaji university, gwalior, india.

ba ckground: mosquitoes are well known as vectors of several disease causing pathogens. the extensive use of synthetic insecticides in the mosquito control strategies resulted to the development of pesticide resistance and fos- tered environmental deterioration. hence in recent years plants become alternative source of mosquito control agents. the present study assessed the larvicidal and ovipo...

2016
Osama M. E. Seidahmed Elfatih A. B. Eltahir

In dengue-endemic areas, transmission shows both a seasonal and interannual variability. To investigate how rainfall impacts dengue seasonality in Singapore, we carried out a longitudinal survey in the Geylang neighborhood from August 2014 to August 2015. The survey comprised of twice-weekly random inspections to outdoor breeding habitats and continuous monitoring for positive ones. In addition...

Journal: :Journal of the American Mosquito Control Association 2000
D K Lee

Assessments of the biological control potential of muddy loaches, Misgurnus mizolepis, were conducted against Aedes togoi, Culex pipiens pallens, and Culex inatomii larvae both in the laboratory and in small rice plots in Pusan, Korea, from June to September 1997. Medium-sized fish consumed almost all of 500 3rd-stage larvae of Cx. pipiens pallens offered daily in the laboratory. Predation by t...

Background: Aedes aegypti is the main vector of the yellow fever and dengue virus. This mosquito has become the major indirect cause of morbidity and mortality of the human worldwide. Dengue virus activity has been reported recently in the western areas of Saudi Arabia. There is no vaccine for dengue virus until now, and the control of the disease depends on the control of the vector. Objectiv...

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