Gotowe bibliografie tematyczne / Larviciding

Gotowa bibliografia na temat „Larviciding”

Autor: Grafiati
Data publikacji: 4 czerwca 2021
Data aktualizacji: 19 lutego 2023

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Artykuły w czasopismach na temat "Larviciding"

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Ngadjeu, Carmène Sandra, Abdou Talipouo, Sévilor Kekeunou, Patricia Doumbe-Belisse, Idriss Nasser Ngangue-Siewe, Landre Djamouko-Djonkam, Edmond Kopya i in. "Knowledge, practices and perceptions of communities during a malaria larviciding randomized trial in the city of Yaoundé, Cameroon". PLOS ONE 17, nr 11 (3.11.2022): e0276500. http://dx.doi.org/10.1371/journal.pone.0276500.

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Background Urban malaria is becoming a major public health concern in major cities in Cameroon. To improve malaria vector control, a pilot larviciding trial was conducted to assess its impact on mosquito density and malaria transmission intensity in Yaoundé. The present study investigated perceptions and practices of communities on malaria control during the larviciding trial implemented in Yaoundé. Methods Quantitative and qualitative data were collected in non-intervention and intervention areas. Quantitative data were collected during three cross-sectional surveys using a structured pre-tested questionnaire while qualitative data were obtained through interviews. A total of 26 in-depth interviews and eight focus group discussions with community members were performed. A binary logistic regression model was used to assess the perception of the community on larviciding impact on some malaria or bed nets use indicators. Results People living in intervention areas were 2.64 times more likely to know the mode of malaria transmission (95% CI: 1.82–3.84; p<0.001) and 1.3 time more likely to know mosquito breeding habitats (95% CI: 1.06–1.56; p = 0.009) compared to those living in non-intervention areas. In intervention areas, interviewee opinions on larviciding were generally good i.e. most interviewees reported having noticed a reduction in mosquito nuisance and malaria cases following larviciding implementation; whereas in non-intervention areas no report of reduction of mosquito nuisance was recorded. LLINs were regularly used by the population despite the implementation of larviciding treatments. There was high interest in larviciding program and demand for continuation, even if this needs the community involvement. Conclusion The larviciding program in the city of Yaoundé did not negatively affected community members’ behaviour and practices concerning the use of treated nets. The study indicated the acceptance of larviciding program by the population. This positive environment could favour the implementation of future antilarval control activities in the city of Yaoundé.
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Dambach, Peter, Till Bärnighausen, Anges Yadouleton, Martin Dambach, Issouf Traoré, Patricia Korir, Saidou Ouedraogo i in. "Is biological larviciding against malaria a starting point for integrated multi-disease control? Observations from a cluster randomized trial in rural Burkina Faso". PLOS ONE 16, nr 6 (18.06.2021): e0253597. http://dx.doi.org/10.1371/journal.pone.0253597.

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Objectives To evaluate the impact of anti-malaria biological larviciding with Bacillus thuringiensis israelensis on non-primary target mosquito species in a rural African setting. Methods A total of 127 villages were distributed in three study arms, each with different larviciding options in public spaces: i) no treatment, ii) full or iii) guided intervention. Geographically close villages were grouped in clusters to avoid contamination between treated and untreated villages. Adult mosquitoes were captured in light traps inside and outside houses during the rainy seasons of a baseline and an intervention year. After enumeration, a negative binomial regression was used to determine the reductions achieved in the different mosquito species through larviciding. Results Malaria larviciding interventions showed only limited or no impact against Culex mosquitoes; by contrast, reductions of up to 34% were achieved against Aedes when all detected breeding sites were treated. Culex mosquitoes were captured in high abundance in semi-urban settings while more Aedes were found in rural villages. Conclusions Future malaria larviciding programs should consider expanding onto the breeding habitats of other disease vectors, such as Aedes and Culex and evaluate their potential impact. Since the major cost components of such interventions are labor and transport, other disease vectors could be targeted at little additional cost.
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Berlin Rubin, Nina, Leonard E. G. Mboera, Adriane Lesser, Marie Lynn Miranda i Randall Kramer. "Process Evaluation of a Community-Based Microbial Larviciding Intervention for Malaria Control in Rural Tanzania". International Journal of Environmental Research and Public Health 17, nr 19 (7.10.2020): 7309. http://dx.doi.org/10.3390/ijerph17197309.

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Microbial larviciding can be an effective component of integrated vector management malaria control schemes, although it is not commonly implemented. Moreover, quality control and evaluation of intervention activities are essential to evaluate the potential of community-based larviciding interventions. We conducted a process evaluation of a larval source management intervention in rural Tanzania where local staff were employed to apply microbial larvicide to mosquito breeding habitats with the aim of long-term reductions in malaria transmission. We developed a logic model to guide the process evaluation and then established quantitative indicators to measure intervention success. Quantitative analysis of intervention reach, exposure, and fidelity was performed to assess larvicide application, and interviews with larviciding staff were reviewed to provide context to quantitative results. Results indicate that the intervention was successful in terms of reach, as staff applied microbial larvicide at 80% of identified mosquito breeding habitats. However, the dosage of larvicide applied was sufficient to ensure larval elimination at only 26% of sites, which does not meet the standard set for intervention fidelity. We propose that insufficient training and protocol adaptation, environment and resource issues, and human error contributed to low larvicide application rates. This demonstrates how several small, context-specific details in sum can result in meaningful differences between intervention blueprint and execution. These findings may serve the design of other larval source management interventions by demonstrating the value of additional training, supervision, and measurement and evaluation of protocol adherence.
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Parvez, S. D., i S. S. Al Wahaibi. "Comparison of three larviciding options for malaria vector control". Eastern Mediterranean Health Journal 9, nr 4 (21.09.2003): 627–36. http://dx.doi.org/10.26719/2003.9.4.627.

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A field study was carried out over 27 weeks in the south Batinah region of Oman to assess the efficiency and cost-effectiveness of different strategies for vector control of malaria. Three larviciding strategies for Anopheles spp. were applied to intervention areas and compared with a control area, with over 2000 breeding sites monitored for 6 months. The normal method of spraying 1 ppm temephos larvicide fortnightly was found to be less efficient and less cost-effective than using 0.5 ppm temephos applied weekly. A third, more environmentally favourable method, to search for vector larvae and treat only those breeding places, was more effective than fortnightly spraying but less effective than the weekly half dose and was the most expensive strategy
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Rulisa, Alexis, Luuk van Kempen, Leon Mutesa, Emmanuel Hakizimana, Chantal M. Ingabire, Fredrick Kateera, Constantianus J. M. Koenraadt, Michèle van Vugt i Bart van den Borne. "Willingness to Contribute to Bio-Larviciding in the Fight against Malaria: A Contingent Valuation Study among Rice Farmers in Rwanda". International Journal of Environmental Research and Public Health 18, nr 21 (4.11.2021): 11575. http://dx.doi.org/10.3390/ijerph182111575.

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There is broad consensus that successful and sustained larval source management (LSM) interventions, including bio-larviciding campaigns, require embeddedness in local community institutions. Ideally, these community structures should also be capable of mobilizing local resources to (co-)finance interventions. To date, farmer cooperatives, especially cooperatives of rice growers whose economic activity facilitates mosquito breeding, have remained under the radar in designing community-based bio-larviciding campaigns. This study explores the potential of rice farmer cooperatives in Bugesera district, Rwanda, to take up the aforementioned roles. To this purpose, we surveyed 320 randomly selected rice farmers who belonged to one of four rice cooperatives in the area and elicited their willingness-to-pay (WTP) for application of Bti, a popular bio-larvicide, in their rice paddies. Results from a (non-incentivized) bidding game procedure, which tested two alternative contribution schemes showed that financial contributions would be significantly different from zero and sufficient to carry a co-financing share of 15–25 per cent. A strong heterogeneity in mean WTP is revealed across cooperatives, in addition to variation among individual farmers, which needs to be anticipated when engaging farmer cooperatives in LSM.
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Ranjbar, Mansour, Khodadad Gorgij, Mahdi Mohammadi, Ali Haghdoost, Alireza Ansari-Moghaddam, Fatemeh Nikpour, Masoud Salehi i in. "Efficacy of applying self-assessment of larviciding operation, Chabahar, Iran". Malaria Journal 11, nr 1 (2012): 329. http://dx.doi.org/10.1186/1475-2875-11-329.

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Rahman, Rifat, Adriane Lesser, Leonard Mboera i Randall Kramer. "Cost of microbial larviciding for malaria control in rural Tanzania". Tropical Medicine & International Health 21, nr 11 (31.08.2016): 1468–75. http://dx.doi.org/10.1111/tmi.12767.

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Vignolles, Cécile, Rainer Sauerborn, Peter Dambach, Christian Viel, Jean-Michel Soubeyroux, Ali Sié, Christophe Rogier i Yves M. Tourre. "RE-EMERGING MALARIA VECTORS IN RURAL SAHEL (NOUNA, BURKINA FASO): THE PALUCLIM PROJECT". ISPRS - International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences XLI-B8 (22.06.2016): 237–42. http://dx.doi.org/10.5194/isprs-archives-xli-b8-237-2016.

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The Paluclim project applied the tele-epidemiology approach, linking climate, environment and public health (CNES, 2008), to rural malaria in Nouna (Burkina Faso). It was to analyze the climate impact on vectorial risks, and its consequences on entomological risks forecast. The objectives were to: 1) produce entomological risks maps in the Nouna region, 2) produce dynamic maps on larvae sites and their productivity, 3) study the climate impact on malaria risks, and 4) evaluate the feasibility of strategic larviciding approach.
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Vignolles, Cécile, Rainer Sauerborn, Peter Dambach, Christian Viel, Jean-Michel Soubeyroux, Ali Sié, Christophe Rogier i Yves M. Tourre. "RE-EMERGING MALARIA VECTORS IN RURAL SAHEL (NOUNA, BURKINA FASO): THE PALUCLIM PROJECT". ISPRS - International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences XLI-B8 (22.06.2016): 237–42. http://dx.doi.org/10.5194/isprsarchives-xli-b8-237-2016.

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The Paluclim project applied the tele-epidemiology approach, linking climate, environment and public health (CNES, 2008), to rural malaria in Nouna (Burkina Faso). It was to analyze the climate impact on vectorial risks, and its consequences on entomological risks forecast. The objectives were to: 1) produce entomological risks maps in the Nouna region, 2) produce dynamic maps on larvae sites and their productivity, 3) study the climate impact on malaria risks, and 4) evaluate the feasibility of strategic larviciding approach.
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Ahmad Zaki, Zuhainy, Nazri Che Dom i Ibrahim Ahmed Alhothily. "Efficacy of Bacillus thuringiensis Treatment on Aedes Population Using Different Applications at High-Rise Buildings". Tropical Medicine and Infectious Disease 5, nr 2 (1.05.2020): 67. http://dx.doi.org/10.3390/tropicalmed5020067.

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Bacillus thuringiensis israelensis (Bti) is an effective biological insecticide for killing mosquito larvae. However, choosing the suitable application method for larviciding is critical in increasing its effectiveness. Therefore, this study aimed to determine the effectiveness of Bti (VectoBac®) WG using various applications at high-rise buildings. Three different applications of Bti treatment were applied at three high-rise buildings in Bandar Saujana Putra. The ULV machine is used for Pangsapuri Impian, a mist blower for Pangsapuri Seri Saujana and a pressured sprayer for BSP 21. BSP Skypark does not undergo treatment and acts as a control. The efficacy of Bti treatment was measured by analyzing the ovitrap surveillance data collected (POI and MLT) for pre and post-treatment. Post-treatment ovitrap surveillance indicates that the Aedes sp. mosquito density was lower than the density at the time of pre-treatment surveillance. Overall, the Aedes albopictus species in both an indoor and outdoor environment setting had shown a reduction. The highest Aedes sp. density reduction is seen through the use of mist blowers in outdoor settings for Aedes albopictus, (%POI reduction = 87.4%; %MLT reduction = 93.8%). The mist blower yielded results that is significantly higher compared to other larviciding applications; the order from greatest to the least was mist blower > pressured sprayer > ULV. It can be concluded that each application produces different degrees of effectiveness in reducing the Aedes sp. density in different environmental settings.
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Rozprawy doktorskie na temat "Larviciding"

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Aryaprema, Vindhya Subhashinie. "Effects of larviciding on the transmission of human lymphatic filariasis in Sri Lanka". Thesis, University of Liverpool, 2007. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.440771.

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Maheu-Giroux, Mathieu. "Malaria Vector Control in Sub-Saharan Africa: Impact and Economic Evaluation of Larviciding". Thesis, Harvard University, 2015. http://nrs.harvard.edu/urn-3:HUL.InstRepos:14117762.

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The last decade witnessed the important scaled-up of malaria control interventions in sub-Saharan Africa (SSA). There is now renewed impetus to achieve the long-term goal of malaria elimination and reducing vectorial capacity of the Anopheles mosquito is a necessary first step towards this objective. Relying solely on the two pillars of malaria vector control (i.e., insecticide-treated nets and indoor residual spraying) will be insufficient to achieve elimination in much of SSA, however. Larval Source Management, and larviciding in particular, could play an important role in areas where breeding habitats are ‘few, fixed, and findable’ or where malaria vectors exhibit exophagic and exophilic behaviors, and in settings where insecticide resistance has emerged. Yet, only few contemporary studies have investigated the effectiveness of larviciding for malaria control despite historical success. Using the wealth of data from Dar es Salaam’s Urban Malaria Control Program (2004-2008), this dissertation will first assess the impact of a community-based larviciding program on prevalence of malaria infection in 15 urban wards of Dar es Salaam (Tanzania). The cost-effectiveness of this intervention will then be estimated from both a provider and a societal perspective. Finally, in a context of accelerated malaria control, the effect of reducing malaria transmission on disease-related behavior and knowledge will be examined. Results suggest that the larviciding intervention had a significant protective effect, decreasing by 21% the odds of being infected with malaria. Larviciding was found to be cost-effective for incidences as low as 40 infections per 1,000 individuals per year but the cost-effectiveness ratios were highly dependent on the assumed baseline malaria incidence rates. Such a successful intervention could also bring about further challenges to sustaining gains in reducing malaria transmission as the larviciding intervention was found to negatively affect bednet usage and knowledge of disease symptoms. Collectively, these results imply that larviciding should be considered as part of an Integrated Vector Management approach in SSA, if local eco-epidemiological conditions are suitable, and that there is a need to sustain behavioral change communication following successful vector control interventions.
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Majambere, Silas. "Larval ecology of malaria vectors and the impact of larviciding on malaria transmission in The Gambia". Thesis, Durham University, 2008. http://etheses.dur.ac.uk/2270/.

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The study reported in this thesis explored the ecology of aquatic stages of mosquitoes in the middle reaches of the Gambia River in order to assess the feasibility and impact of microbial larviciding on malaria transmission in large river ecosystems in sub- Saharan Africa. All accessible water bodies in four study zones covering 400 km(^2) were mapped and sampled for mosquitoes. Microbial larvicides were applied in the four zones in across-over design and the impact of larviciding on mosquito densities assessed. Anopheline and culicine mosquitoes were found in all sampled habitats, apart from those with moving water. Similarly, all habitats, except puddles and water channels, had similar larval and pupal densities. Anopheles gambiae sensu lato, the major malaria vector in Africa, exploited a wide range of habitats and despite a decrease in population density during the dry season, could be found in breeding sites throughout the year. Mosquitoes shared habitats with other invertebrates including their predators. A closer look at rice fields revealed that mosquitoes were abundant in rice fields closer to the landward edge of the floodplains where water is fresher and contains high quantifies of nutrients. Mosquitoes of The Gambia were highly susceptible to both Bacillus thuringiensis var. israelensis (Bti) and B. sphaericus microbials, however no residual activity against anopheline larvae was observed. The basic training of personnel in identification of habitats, calibration of application equipment and active larviciding proved to be successful. Routine larviciding was associated with > 91 % reducfion (p < 0.001) in anophelines late stage larval density and 72 % (p < 0.001) in culicines. Overall, larviciding was associated with a 28% (p = 0.005) reduction in the number of adult female Anopheles gambiae s.l. found indoors, although this rose to 42%, when the study zone with the greatest abundance of breeding sites was excluded from the analysis. No significant reduction in adult culicines was observed. Ground application of Bti in areas with extensive floodplains is unlikely to contribute to a substantial reduction in malaria transmission in The Gambia, therefore vector control in such areas should target adult mosquitoes.
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Chitra, Eric, i n/a. "Bionomics of Culicoides molestus (Diptera: Ceratopogonidae): a pest biting midge in Gold Coast canal estates". Griffith University. School of Environmental and Applied Science, 2004. http://www4.gu.edu.au:8080/adt-root/public/adt-QGU20041119.101151.

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Culicoides molestus (Skuse) is the major species of biting midge that plagues human comfort in the estuarine Gold Coast region of southeast Queensland. Local authorities have initiated a search for an effective, non-chemical means of control, that would minimize human-midge interaction. The effectiveness of a program to control an organism, such as a biting midge, is dependent upon knowledge of the biology of the particular organism of interest. This project revolved examines the lifecycle of C. molestus in detail. It addresses questions regarding the location, seasonal distribution, and dispersal of its juvenile stages in the sand of infested beaches, and their response to chemical treatment, the monthly and annual cycles of the adult midge, and the possibilities of achieving laboratory oviposition, as a first step to laboratory colonisation. The distribution of eggs, larvae and pupae of C. molestus was found to be mostly concentrated around, but below, mean tide level. They also occurred well below the mean tide level. Eggs and larvae have been recovered from as deep as 10 cm in the sand. A seasonal study of the juveniles of this species indicated that they were more strongly influenced by tides than seasons. After a routine pest-control larviciding treatment, a beach recolonisation study revealed that beaches become suitable for oviposition approximately two months after treatment. Large larvae invaded the sprayed areas within days of treatment, which suggests the existence of a refuge outside of the reach of the insecticide. Larvae found in clean (egg- and larva-free), isolated sand containers, placed on the study beach, indicated that larvae could swim in or on the water as a way of moving around the beach. Extended bite-rate studies highlighted the existence of four peaks in adult midge biting activity during the course of a year, around the mid seasons. The strongest peaks of activity were found to be in autumn and spring, but the data suggest that the species undergoes four generations in a year. Through a series of trial-and-error experiments, oviposition under laboratory conditions was achieved. Although the time from blood-feeding to egg maturation is not yet well determined, it occurs within an eight day mean survival period. Blood quality appears critical for adult blood-fed midge survival. Midges fed on the blood of a volunteer who was frequently exposed to midge bites do not live long enough to mature its eggs. The partial ovarial development of one unfed adult female, reared in the laboratory, indicates that C. molestus is facultatively anautogenous.
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Części książek na temat "Larviciding"

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Becker, Norbert. "The Rhine Larviciding Program and Its Application to Vector Control". W Vector Biology, Ecology and Control, 209–19. Dordrecht: Springer Netherlands, 2010. http://dx.doi.org/10.1007/978-90-481-2458-9_15.

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Yeboah, Edmund, Aditi Bunker, Peter Dambach, Isabel Mank, Raïssa Sorgho, Ali Sié, Stephen Munga, Till Bärnighausen i Ina Danquah. "Transformative Adaptations for Health Impacts of Climate Change in Burkina Faso and Kenya". W African Handbook of Climate Change Adaptation, 2485–500. Cham: Springer International Publishing, 2021. http://dx.doi.org/10.1007/978-3-030-45106-6_119.

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AbstractClimate change strongly affects the health of sub-Saharan African populations. Effective adaptation strategies are required in order to enhance their limited adaptive capacities. The DFG-funded Research Unit (RU) “Climate change and health in sub-Saharan Africa” unites nine research institutions from Burkina Faso, Kenya, Germany, and Switzerland that will design, implement, and evaluate four different adaptation projects in these two African countries from 2020 until 2022.First, the effectiveness of an agro-biodiversification and nutrition program will be established for the reduction of child undernutrition of climate-sensitive nutrients in rural Burkina Faso and Kenya. Two respective cluster-randomized controlled trials (cRCT) will be conducted, each consisting of 2 × 600 children. Second, another cRCT will be conducted among 2 × 300 households in rural Burkina Faso to investigate how sunlight-reflecting cool-roof coatings affect human health outcomes, including cardiovascular and heat-related outcomes. Further outcomes comprise indoor temperature, carbon footprint, and productivity. Third, an index-based weather insurance (IBWI) will be introduced in rural Burkina Faso. The effects of IBWI on childhood nutritional status, dietary behavior, and healthcare seeking will be determined in 2 × 20 villages. Fourth, microbial larviciding has been evaluated as a promising environmental control for malaria vectors in Burkina Faso. Here, the interactions between climatic factors and the effectiveness of the intervention will be tested using spatiotemporal models.
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Jacob, Benjamin G., i Peace Habomugisha. "Location Intelligence Powered by Machine Learning Automation for Mapping Malaria Mosquito Habitats Employing an Unmanned Aerial Vehicle (UAV) for Implementing “Seek and Destroy” for Commercial Roadside Ditch Foci and Real Time Larviciding Rock Pit Quarry Habitats in Peri-Domestic Agro-Pastureland Ecosystems in Northern Uganda". W Advanced Sciences and Technologies for Security Applications, 133–48. Cham: Springer International Publishing, 2021. http://dx.doi.org/10.1007/978-3-030-71998-2_8.

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Crosa, G., L. Yaméogo, D. Calamari, M. E. Diop, K. Nabé i F. Kondé. "Analysis of the effects of rotational larviciding on aquatic fauna of two Guinean rivers: the case of permethrin". W Trente ans de lutte contre l’onchocercose en Afrique de l’Ouest. Traitements larvicides et protection de l’environnement. IRD Éditions, 2003. http://dx.doi.org/10.4000/books.irdeditions.28794.

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