نتایج جستجو برای: insecticide resistance
تعداد نتایج: 383953 فیلتر نتایج به سال:
Landscape-scale intensification of individual crops and pesticide use that is associated with this intensification is an emerging, environmental problem that is expected to have unequal effects on pests with different lifecycles, host ranges, and dispersal abilities. We investigate if intensification of a single crop in an agroecosystem has a direct effect on insecticide resistance in a special...
Insecticides are the most important component in insect pest-control efforts worldwide. Pyrethroids are among the insecticides that have been most widely used for this purpose for many years because of their safe, cheap, effective and long-lasting nature (Bulter et al. 2011). However, the widespread development of insecticide resistance, especially pyrethroid resistance, and the fact that resis...
The Voltage Gated Sodium Channel (VGSC) is critical for binding of different insecticides and play key role in insecticide resistance. An important mechanism of resistance to DDT and pyrethroids is termed knockdown resistance (kdr), caused by mutations in IIS6 domain of sodium channels. To attain a better management strategy for insecticide resistance and screening of new insecticide molecules,...
Current vector control programs are largely dependent on pyrethroids, which are the most commonly used and only insecticides recommended by the World Health Organization for insecticide-treated nets (ITNs). However, the rapid spread of pyrethroid resistance worldwide compromises the effectiveness of control programs and threatens public health. Since few new insecticide classes for vector contr...
Mosquito borne diseases such as malaria and dengue cause extensive morbidity and mortality and are a major economic burden within disease-endemic countries. Control of both these diseases, which in most countries are primarily transmitted in and around the home, is difficult. Malaria and dengue are effectively managed through a combination of vector control, drugs and management of clinical ill...
Both Aedes aegytpi and Ae. albopictus are major vectors of 5 important arboviruses (namely chikungunya virus, dengue virus, Rift Valley fever virus, yellow fever virus, and Zika virus), making these mosquitoes an important factor in the worldwide burden of infectious disease. Vector control using insecticides coupled with larval source reduction is critical to control the transmission of these ...
Malaria is a global public health problem, with about 3.2 billion people at risk of infection. The populations at risk mainly reside in Africa, Asia and America, with African populations accounting for the largest burden of the disease. In 2013, close to 198 million malaria cases were reported, leading to 584,000 deaths. Much (90 %) of the mortality rates were recorded from the World Health Org...
The rapid evolution of insecticide resistance remains one of the biggest challenges in the control of medically and economically important pests. Insects have evolved a diverse range of mechanisms to reduce the efficacy of the commonly used classes of insecticides, and finding the genetic basis of resistance is a major aid to management. In a previously unstudied population, we performed an F2 ...
Background and purpose: Anopheles mosquitoes are of particular importance because they transmit malaria. Implementing the malaria elimination program reduced its incidence in recent years in Iran. However, in the last decade, almost an annual average of 15 thousand cases was recorded. So far 24 species of Anopheles are collected in Iran of which 8 species are confirmed as malaria vectors. Despi...
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