scholarly journals SEMI-FIELD ULV EVALUATION OF AN ALL-PURPOSE BOTANICAL INSECTICIDE CONTAINING CEDARWOOD AND CINNAMON OILS AGAINST ADULT AEDES AEGYPTI

2021 ◽  
Vol 66 (1) ◽  
Author(s):  
Christopher S. Bibbs
Keyword(s):  
Aedes Aegypti ◽  
Essential Oils ◽  
Mosquito Control ◽  
Botanical Insecticides ◽  
Botanical Insecticide ◽  
Cinnamon Oil ◽  
Growing Body ◽  
Mosquito Management ◽  
Integrated Mosquito Management ◽  
Indoor And Outdoor

Public health mosquito control operates with only two classes of mosquito adulticides: pyrethroids and organophosphates. Recent work improving the emulsification of essential oils has increased the potential for development of plantderived active ingredients. There is a growing body of literature on essential oils for various roles in mosquito management. NatureCide Pest Management (NCPM), a product available in private and commercial home pest control, uses a mixture of 25.3% cedarwood oil and 12.7% cinnamon oil as a Federal Insecticide, Fungicide, Rodenticide Act (FIFRA) exempt insecticide for both indoor and outdoor use. Recent investigations by the Anastasia Mosquito Control District of St. Johns County have found other FIFRA exempt products to be effective as a residual spray on vegetation. In continuing the exploration of botanical insecticides, NCPM was used in ULV tests against Aedes aegypti (L.) within its 35-122 ml per L of water label rate. Applications at 35 ml/L resulted in 60-70% knockdown after 1 hr and mortality after 24 hr. Increasing the rate to 70 ml/L resulted in 100% knockdown and mortality across all replications. Crystalline precipitation of the microemulsion was observed in mix tanks after standing for at least 2 wk, but it was not apparent that the efficacy of the product was reduced as a consequence. Cedarwood oil and cinnamon oil are a beneficial combination for ULV adulticiding against mosquitoes and could have a beneficial role for integrated mosquito management.

scholarly journals The Impact of Hurricane Irma on Our Community and the Collier Mosquito Control District's Mission

2020 ◽  
Vol 36 (2s) ◽  
pp. 11-14
Author(s):  
Robin A. King ◽  
Rebecca Heinig ◽  
Patrick Linn ◽  
Keira J. Lucas
Keyword(s):  
Mosquito Control ◽  
Electrical Power ◽  
Southwest Florida ◽  
Disease Vector ◽  
Collier County ◽  
Mosquito Management ◽  
The Impact ◽  
Integrated Mosquito Management ◽  
Hurricane Irma ◽  
Subtropical Environment

ABSTRACT The Collier Mosquito Control District, located in southwest Florida, is uniquely positioned in a subtropical environment between the Gulf of Mexico and Everglades National Park. The District's mission is focused on the control of disease vector and nuisance mosquitoes in Collier County, which is accomplished through integrated mosquito management. Hurricane Irma made landfall in the county on September 10, 2017, leaving in its wake tremendous property and infrastructure damage, and it also disrupted communications and airport operations. These factors greatly affected the District's operations and its ability to meet its mission. In addition, the lengthy loss of electrical power forced most residents outdoors, increasing their exposure to mosquitoes. From challenges in completing poststorm treatments to outdated policies that caught us off-guard, the event prompted a new hurricane policy and plan to ensure improved preparedness for the next natural disaster. The poststorm environment also provided a rich foundation for research into mosquito populations after tropical disturbances of this scale. Here we report the impact on the District's aerial mosquito control operations, changes to internal policies, and mosquito population abundance following Hurricane Irma.

scholarly journals Enfrentamento ao Aedes aegypti no contexto brasileiro

2019 ◽  
Vol 13 ◽  
Author(s):  
Diane Sales Vieira ◽  
Ítala Keane Rodrigues Dias ◽  
Cicera Luciana da Silva Sobreira ◽  
Francisco Elizaudo de Brito Junior ◽  
Maria Do Socorro Vieira Lopes
Keyword(s):  
Aedes Aegypti ◽  
Mosquito Control ◽  
Larval Fish ◽  
Hierarchical Classification ◽  
Pathogenic Fungi ◽  
Analysis Data ◽  
Botanical Insecticides ◽  
Wolbachia Pipientis ◽  
Innovative Techniques ◽  
Selection Of

Objetivo: sintetizar as ações desenvolvidas para o enfrentamento ao Aedes aegypti no contexto brasileiro. Método: trata-se de um estudo bibliográfico, descritivo, tipo revisão integrativa. Realizou-se a busca na MEDLINE, LILACS e BDENF. Utilizaram-se os filtros: texto completo disponível; idioma (português, inglês e espanhol), tipo de documento (artigo) e ano de publicação (2013-2018). Organizou-se o processo de definição e seleção dos estudos por meio do fluxograma PRISMA. Utilizou-se o software IRAMUTEQ para o processamento e a análise dos dados. Analisaram-se os dados a partir da Classificação Hierárquica Descendente e da nuvem de palavras. Resultados: selecionaram-se 31 estudos. Originaram-se seis classes com as seguintes estratégias: fungos entomopatogênicos; peixes larvívoros; Wolbachia pipientis; técnicas RILD e SIT; inseticidas botânicos; larvicidas Diflubenzuron e Deltramina; Piriproxifeno; monitoramento tecnológico; visitas regulares pelo ACS e ACE; abordagem ecossaúde; MIV e campanhas. Conclusão: conclui-se que há uma variedade de estratégias de enfrentamento às arboviroses e o quão são necessários o aperfeiçoamento e o desenvolvimento de técnicas inovadoras para o controle deste agravo. Descritores: Aedes; Controle de Mosquitos; Brasil; Prevenção de Doenças; Infecções por Arbovírus; Controle de Infecções.AbstractObjective: to synthesize the actions developed to confront Aedes aegypti in the Brazilian context. Method: this is a bibliographic, descriptive, integrative review study. The search was performed at MEDLINE, LILACS and BDENF. The filters were used: full text available; language (Portuguese, English and Spanish), type of document (article) and year of publication (2013-2018). The process of definition and selection of studies was organized through the PRISMA flowchart. IRAMUTEQ software was used for data processing and analysis. Data was analyzed from Descending Hierarchical Classification and word cloud. Results: 31 studies were selected. Six classes originated with the following strategies: entomo-pathogenic fungi; larval fish; Wolbachia pipientis; RILD and SIT techniques; botanical insecticides; larvicides Diflubenzuron and Deltramine; Pyriproxyfen; technological monitoring; regular visits by ACS and ACE; eco-health approach; MIV and campaigns. Conclusion: it is concluded that there are a variety of strategies for coping with arboviruses and how much the improvement and development of innovative techniques for the control of this disease are necessary. Descriptors: Aedes; Mosquito Control; Brazil; Disease Prevention; Arbovirus Infections; Infection Control.ResumenObjetivo: sintetizar las acciones desarrolladas para enfrentar al Aedes aegypti en el contexto brasileño. Método: este es un estudio bibliográfico, descriptivo, tipo revisión integradora. La búsqueda se realizó en MEDLINE, LILACS y BDENF. Se utilizaron los filtros: texto completo disponible; idioma (portugués, inglés y español), tipo de documento (artículo) y año de publicación (2013-2018). El proceso de definición y selección de estudios se organizó a través del diagrama de flujo PRISMA. El software IRAMUTEQ se utilizó para el procesamiento y análisis de datos. Los datos se analizaron a partir de Clasificación Jerárquica Descendente y nube de palabras. Resultados: se seleccionaron 31 estudios. Seis clases se originaron con las siguientes estrategias: hongos entomopatógenos; peces larvales; Wolbachia pipientis; Técnicas RILD y SIT; insecticidas botánicos; larvicidas Diflubenzuron y Deltramine; Piriproxifeno; monitoreo tecnológico; visitas regulares de ACS y ACE; enfoque de ecosalud; MIV y campañas. Conclusión: se concluye que hay una variedad de estrategias para hacer frente a los arbovirus y cuánto es necesaria la mejora y el desarrollo de técnicas innovadoras para el control de esta enfermedad. Descriptores: Aedes; Control de Mosquitos; Brasil; Prevención de Enfermedades; Infecciones por Arbovirus; Control de Infecciones.

scholarly journals Susceptibility of South Texas Aedes aegypti to Pyriproxyfen

Insects ◽  
2021 ◽  
Vol 12 (5) ◽  
pp. 460
Author(s):  
Jose G. Juarez ◽  
Selene M. Garcia-Luna ◽  
Christopher M. Roundy ◽  
Alyssa Branca ◽  
Michael G. Banfield ◽  
...  
Keyword(s):  
Aedes Aegypti ◽  
Growth Regulator ◽  
Insect Growth Regulator ◽  
South Texas ◽  
Susceptible Population ◽  
Insect Growth ◽  
Mosquito Management ◽  
Chemical Products ◽  
Larval Bioassay ◽  
Integrated Mosquito Management

An integral part to integrated mosquito management is to ensure chemical products used for area-wide control are effective against a susceptible population of mosquitoes. Prior to conducting an intervention trial using an insect growth regulator, pyriproxyfen, in South Texas to control Aedes aegypti, we conducted a larval bioassay to evaluate baseline levels of susceptibility. We used seven serially-diluted doses ranging from 2.5 ppb to 6.3 × 10−4 ppb. We observed 100% inhibition emergence (IE) at even the lowest dose of 6.3 × 10−4 ppb in our susceptible reference colony of Ae. aegypti Liverpool. In our field strain of Ae. aegypti (F5 colonized from South Texas) we observed 79.8% IE at 6.3 × 10−4 ppb, 17.7% IE at 1.25 × 10−3 ppb, 98.7% IE at 1.25 × 10−2 ppb, and 100% emergence inhibition for the remainder of the doses. Given that commercial pyriproxyfen products are labeled for doses ranging to 50 ppb, we conclude that the field population sampled by this study are susceptible to this insect growth regulator.

Larvicidal Activity of Essential Oils Against Aedes aegypti (Diptera: Culicidae)

2020 ◽  
Vol 26 (33) ◽  
pp. 4092-4111
Author(s):  
Mikael A. de Souza ◽  
Larissa da Silva ◽  
Maria A. C. dos Santos ◽  
Márcia J. F. Macêdo ◽  
Luiz J. Lacerda-Neto ◽  
...  
Keyword(s):  
Aedes Aegypti ◽  
Essential Oils ◽  
Larval Mortality ◽  
Analytical Techniques ◽  
Extraction Methods ◽  
Control Programs ◽  
Plant Parts ◽  
Natural Insecticides ◽  
Methods Analytical ◽  
Meta Analyses

The Aedes aegypti is responsible for the transmission of arboviruses, which compromise public health. In the search for synthetic product alternatives, essential oils (OEs) have been highlighted by many researchers as natural insecticides. This systematic review (SR) was performed according to PRISMA guidelines (Preferred Reporting Items for Systematic Reviews and Meta-Analyses) and its objective was to evaluate studies addressing OEs with larvicidal properties against Ae. aegypti, through electronic database searches (Pubmed, Science Direct and Scielo), covering an overview of the plant sources OEs, which plant parts were used, the extraction methods, analytical techniques, major and/or secondary constituents with greater percentages, as well as the LC50s responsible for larval mortality. Following study analysis, plants distributed across 32 families, 90 genera and 175 species were identified. The Lamiaceae, Myrtaceae, Piperaceae, Asteraceae, Rutaceae, Euphorbiaceae and Lauraceae families obtained the highest number of species with toxic properties against larvae from this vector. Practically all plant parts were found to be used for OE extraction. Hydrodistillation and steam distillation were the main extraction methods identified, with GC-MS/GC-FID representing the main analytical techniques used to reveal their chemical composition, especially of terpene compounds. In this context, OEs are promising alternatives for the investigation of natural, ecologically correct and biodegradable insecticides with the potential to be used in Ae. aegypti control programs.

scholarly journals Efficacy of Petiveria Alliacea (Linneaus) leaf and root bark powder in the control of filariasis vector Culex Quinquefasciatus

2021 ◽  
Vol 82 (1) ◽  
Author(s):  
Michael Olarewaju Akintan ◽  
Joseph Onaolapo Akinneye ◽  
Oluwatosin Betty Ilelakinwa
Keyword(s):  
Synergistic Effect ◽  
Culex Quinquefasciatus ◽  
Mosquito Control ◽  
Exposure Period ◽  
Botanical Insecticides ◽  
Adult Mosquito ◽  
Root Bark ◽  
Plant Powders ◽  
Petiveria Alliacea ◽  
Feeding Activities

Abstract Background Mosquitoes are vectors of parasitic diseases such as malaria, lymphatic filariasis, yellow fever, and dengue fever among others. They are well known as public enemies for their noise nuisance, biting annoyance, sleeplessness, allergic reactions, and diseases transmission during the biting and feeding activities. This then necessitate the search for insecticides of plant origin which are bio-degradable, non-toxic, and readily available for man use. Result This study, evaluated the fumigant efficacy of the powder of P. alliacea to control the adult stage of Culex mosquito. Powder of Petiveria alliacea were administered at different dose of (1 g, 2 g, 3 g, 4 g, and 5 g), respectively. Result obtained shows the fumigant effect of the powder were effective with percentage mortality of 18.33–60.00% for the leaf powder and 23.30–71.60% for the root powder within 2 h post-treatment period (P < 0.05). The synergistic effect of the leaf and root powder was also investigated. The lethal dosage (LD50) of the leaf, root, and synergistic effect of leaf and root bark powder required to kill 50% of the adult Culex quinquefasciatus was 3.76 g, 2.86 g, and 2.63 g, respectively. However, 25.06 g, 15.25 g, and 12.94 g of the leaf, root, and leaf and root powder were required to kill 90% (LD90) after a 2-h exposure period. Conclusion These finding suggested P. alliacea powder could be a good source of insecticide which may be used for the production of biopesticides. The present findings have important implications in the practical control of adult mosquito by using botanical insecticides. These plant powders are easy to prepare, inexpensive, and safe for use in mosquito control.

scholarly journals Permethrin Resistance in Aedes aegypti Affects Aspects of Vectorial Capacity

Insects ◽  
2021 ◽  
Vol 12 (1) ◽  
pp. 71
Author(s):  
Tse-Yu Chen ◽  
Chelsea T. Smartt ◽  
Dongyoung Shin
Keyword(s):  
Aedes Aegypti ◽  
Sodium Channel ◽  
Mosquito Control ◽  
Vector Competence ◽  
Vectorial Capacity ◽  
Parental Population ◽  
Control Programs ◽  
Channel Gene ◽  
Sodium Channel Gene ◽  
Specific Pcr

Aedes aegypti, as one of the vectors transmitting several arboviruses, is the main target in mosquito control programs. Permethrin is used to control mosquitoes and Aedes aegypti get exposed due to its overuse and are now resistant. The increasing percentage of permethrin resistant Aedes aegypti has become an important issue around the world and the potential influence on vectorial capacity needs to be studied. Here we selected a permethrin resistant (p-s) Aedes aegypti population from a wild Florida population and confirmed the resistance ratio to its parental population. We used allele-specific PCR genotyping of the V1016I and F1534C sites in the sodium channel gene to map mutations responsible for the resistance. Two important factors, survival rate and vector competence, that impact vectorial capacity were checked. Results indicated the p-s population had 20 times more resistance to permethrin based on LD50 compared to the parental population. In the genotyping study, the p-s population had more homozygous mutations in both mutant sites of the sodium channel gene. The p-s adults survived longer and had a higher dissemination rate for dengue virus than the parental population. These results suggest that highly permethrin resistant Aedes aegypti populations might affect the vectorial capacity, moreover, resistance increased the survival time and vector competence, which should be of concern in areas where permethrin is applied.

Investigating Male Aedes aegypti (Diptera: Culicidae) Attraction to Different Oviposition Containers Using Various Configurations of the Sound Gravid Aedes Trap

2019 ◽  
Vol 57 (3) ◽  
pp. 957-961
Author(s):  
Kyran M Staunton ◽  
Barukh B Rohde ◽  
Michael Townsend ◽  
Jianyi Liu ◽  
Mark Desnoyer ◽  
...  
Keyword(s):  
Aedes Aegypti ◽  
Zika Virus ◽  
Disease Transmission ◽  
Urban Landscape ◽  
Mosquito Control ◽  
Transmission Risk ◽  
Northern Australia ◽  
Control Programs ◽  
Male Dispersal ◽  
Olfactory Attractant

Abstract Aedes aegypti (Linnaeus), the primary vectors of the arboviruses dengue virus and Zika virus, continue to expand their global distributions. In efforts to better control such species, several mosquito control programs are investigating the efficacy of rearing and releasing millions of altered male Aedes throughout landscapes to reduce populations and disease transmission risk. Unfortunately, little is known about Ae. aegypti, especially male, dispersal behaviors within urban habitats. We deployed Sound-producing Gravid Aedes Traps (SGATs) in Cairns, northern Australia, to investigate male Ae. aegypti attraction to various oviposition container configurations. The traps were arranged to include: 1) water only, 2) organically infused water, 3) infused water and L3 larvae, 4) infused water and a human-scented lure, and lastly 5) no water or olfactory attractant (dry). Our data suggest that males were more attracted to SGATs representing active larval sites than potential larval sites, but were equally attracted to dry SGATs relative to those containing water and/or infusion. Additionally, we found that female Ae. aegypti were equally attracted to wet SGATs, with or without infusion, but not dry ones. These results suggest that male Ae. aegypti within northern Australia are more attracted to active larval sites and equally attracted to dry containers as wet or infused ones. Additionally, female Ae. aegypti are unlikely to enter dry containers. Such findings contribute to our understanding of potentially attractive features for local and released Ae. aegypti throughout the northern Australian urban landscape.

Essential oils and their compounds as Aedes aegypti L. (Diptera: Culicidae) larvicides: review

2013 ◽  
Vol 113 (2) ◽  
pp. 565-592 ◽  
Author(s):  
Clarice Noleto Dias ◽  
Denise Fernandes Coutinho Moraes
Keyword(s):  
Aedes Aegypti ◽  
Essential Oils
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