The impact of deltamethrin-impregnated cloth targets on Stegomyia polynesiensis (= Aedes polynesiensis) (Marks) (Diptera: Culicidae) was assessed under laboratory and semi-field settings in French Polynesia. Stegomyia polynesiensis females were released into small laboratory cages and large field cages containing either a deltamethrin-treated or an untreated navy blue cloth, and mosquito knock-down and mortality were assessed. The 24-h mortality rate in mosquitoes exposed to the insecticide-treated target in small cages was 98.0%. These mosquitoes also demonstrated significantly higher levels of knock-down than those exposed to the untreated target. Mortality in field cages was assessed at 24 and 48 h. The 24-h mortality rate in mosquitoes exposed to the control target was 31.2%, whereas that in those exposed to the deltamethrin-treated target was 54.3%. The 48-h mortality rate was also elevated in mosquitoes exposed to the deltamethrin-treated target, but this result did not differ significantly from that observed in mosquitoes exposed to the control target. The significant suppression of female S. polynesiensis by deltamethrin-treated resting targets in this study indicates that these targets could play a role in the control of an important disease vector in the South Pacific region.
Download full-text PDF |
Source |
|---|---|
| http://dx.doi.org/10.1111/mve.12180 | DOI Listing |
Publication Analysis
Top Keywords
Similar Publications
Evaluating the potential of Kalanchoe pinnata, Piper amalago amalago, and other botanicals as economical insecticidal synergists against Anopheles gambiae.
Malar J
January 2025
Caribbean Centre for Research in Biosciences, Natural Products Institute, University of the West Indies, Kingston, Jamaica.
Background: Synergists reduce insecticide metabolism in mosquitoes by competing with insecticides for the active sites of metabolic enzymes, such as cytochrome P450s (CYPs). This increases the availability of the insecticide at its specific target site. The combination of both insecticides and synergists increases the toxicity of the mixture.
View Article and Find Full Text PDF[Physiological characteristics of subspecies with double mutations of and and its activity against larvae of ].
Zhongguo Xue Xi Chong Bing Fang Zhi Za Zhi
December 2024
Lixiahe Institute of Agricultural Sciences in Jiangsu Province; National Experimental Station of Yangzhou for Agricultural Microbiology, Yangzhou, Jiangsu 225007, China.
Objective: To investigate the physiological characteristics of subspecies (Bti) with double mutations of and genes and to assess the activity of Bti against larvae of under different external factors, so as to provide the theoretical evidence for the use of engineered bacteria of Bti for effective mosquito control.
Methods: wild-type strain Bt-59 and Bt-59 strain with mutation [Bt-59 (Δ)] were cultured in nutrient broth media for 24 hours, and Bt-59 strains with mutation [Bt-59 (Δ)] and double mutations of and [Bt-59 (Δ)] were cultured in nutrient broth media for 48 hours. Then, 5 μL of culture media were transferred to glass sides, and cell morphology and mother cell lysis were observed under an optical microscope.
Predictors of insecticide-treated nets utilization among children under five years in refugee settlements in Uganda: analysis of the 2018-2019 Uganda Malaria Indicator Survey.
Malar J
January 2025
Department of Geography, Geo-Informatics and Climatic Sciences, Makerere University, P.O Box 7062, Kampala, Uganda.
Background: Despite significant distribution of insecticide-treated net (ITNs) by the Government of Uganda to refugees, malaria is major cause of mortality and morbidity among children under five years in refugee settlements. This highlights the persistent challenges and complexities surrounding malaria control and prevention efforts in these settings. Studies that focus on the determinants of ITN utilization among children under five years in refugee settlements in Uganda are not available.
View Article and Find Full Text PDFEmergence of locally acquired Japanese encephalitis virus in Australia, January 2021-June 2022: a national case series.
Commun Dis Intell (2018)
January 2025
Health Protection Policy and Surveillance Division, Australian Government Department of Health and Aged Care, Canberra, Australian Capital Territory, Australia.
Background And Methods: In March 2022, an outbreak of Japanese encephalitis virus (JEV) infection was identified in temperate south-eastern Australia, with detections in humans and animals. The unexpected emergence of JEV prompted a national public health response and a Communicable Disease Incident of National Significance was declared. JEV has previously only been identified in tropical north-eastern Australia in localised outbreaks.
View Article and Find Full Text PDFAvian haemosporidian parasites affecting non-descript village chickens in Africa.
Trop Anim Health Prod
January 2025
Department of Agriculture and Animal Health, College of Agriculture and Environmental Science, University of South Africa, Florida, South Africa.
Smallholder farmers in most of the rural areas in African countries rear non-descript village chickens for petty cash, food provision and for performing rituals. Village chicken production systems are regarded as low input- low output because the chickens receive minimum care and produce average to less eggs and meat. The chickens receive minimal biosecurity and are often left to scavenge for feed and thus exposes them to potential vector parasites that can transmit parasites such as haemoparasites.
View Article and Find Full Text PDFWant AI Summaries of new PubMed Abstracts delivered to your In-box?
Enter search terms and have AI summaries delivered each week - change queries or unsubscribe any time!