نتایج جستجو برای: larvicide resistance

تعداد نتایج: 375526  

2016
Barry W. Alto Cynthia C. Lord Charles Apperson

Most mosquito control efforts are primarily focused on reducing the adult population size mediated by reductions in the larval population, which should lower risk of disease transmission. Although the aim of larviciding is to reduce larval abundance and thus recruitment of adults, nonlethal effects on adults are possible, including transstadial effects on phenotypes of adults such as survival a...

2012
Helena Sofia Rodrigues M. Teresa T. Monteiro Delfim F. M. Torres

In 2009, for the first time in Cape Verde, an outbreak of dengue was reported and over twenty thousand people were infected. Only a few prophylactic measures were taken. The effects of vector control on disease spreading, such as insecticide (larvicide and adulticide) and mechanical control, as well as an hypothetical vaccine, are estimated through simulations with the Cape Verde data.

2012
Clare Strode Maria de Melo-Santos Tereza Magalhães Ana Araújo Contancia Ayres

BACKGROUND The mosquito Aedes aegypti is one of the most important disease vectors because it transmits two major arboviruses, dengue and yellow fever, which cause significant global morbidity and mortality. Chemical insecticides form the cornerstone of vector control. The organophosphate temephos a larvicide recommended by WHO for controlling Ae. aegypti, however, resistance to this compound h...

2016
Beniamino Caputo Mattia Manica Antonello D’Alessandro Giordano Bottà Federico Filipponi Carmela Protano Matteo Vitali Roberto Rosà Alessandra della Torre

Seasonal-long larvicide treatments and/or outdoor space-spray applications of insecticides are frequently applied to reduce Aedes albopictus nuisance in urban areas of temperate regions, where the species has become a permanent pest affecting people's quality of life and health. However, assessments of the effectiveness of sequential interventions is a difficult task, as it requires to take int...

2012
Huaiping Zhu

In Canada the number of West Nile virus (WNv) infection of humans decreasing during the years of 2007-2010. However, it started increasing once more during last year 2011 despite the immense efforts exhibited by the specialized agencies to control the vector mosquitoes and the disease. In this study, we use mathematical models to study the behavior of the transmission of WNv in the mosquito-bir...

Journal: :Asian Pacific Journal of Tropical Medicine 2011

2013

There are about three thousand five hundred species of mosquitoes found throughout the world. Mosquitoes are foremost in man's war against insects. The blood sucking arthropod not only cause nuisance by their irritating bites but also create health menace, as they are responsible for spreading serious diseases like Malaria, Dengue, Yellow fever, Japanese Encephalitis, Chikungunya etc. Several s...

2017
Linda Grigoraki Dimitra Pipini Pierrick Labbé Alexandra Chaskopoulou Mylene Weill John Vontas

BACKGROUND Aedes albopictus is one of the most invasive human disease vectors. Its control has been largely based on insecticides, such as the larvicide temephos. Temephos resistance has been associated with the up-regulation, through gene amplification, of two carboxylesterase (CCE) genes closely linked on the genome, capable of sequestering and metabolizing temephos oxon, the activated form o...

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