Spatial Action of Mosquito Repellents13

Schreck, C. E.; Gilbert, I. H.; Weidhaas, D. E.; Posey, K.

doi:10.1093/jee/63.5.1576

Cited by 27 publications

(19 citation statements)

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“…Other than topical repellents [5, 6] and protective clothing [7], spatial repellents can be used in the early evening and throughout the night when LLINs are not in use. Apart from their toxicity, volatile airborne insecticides such as transfluthrin incapacitate mosquitoes and prevent them from locating hosts and obtaining blood meals [8] and are referred to as spatial repellents. Examples of spatial repellent delivery formats include pyrethroid-treated mosquito coils, vaporizer mats, aerosols, and paper strips as well as traditional practices such as burning and smoldering plants [9].…”

Section: Introductionmentioning

confidence: 99%

Efficacy and user acceptability of transfluthrin-treated sisal and hessian decorations for protecting against mosquito bites in outdoor bars

et al. 2017

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BackgroundA number of mosquito vectors bite and rest outdoors, which contributes to sustained residual malaria transmission in endemic areas. Spatial repellents are thought to create a protective “bubble” within which mosquito bites are reduced and may be ideal for outdoor use. This study builds on previous studies that proved efficacy of transfluthrin-treated hessian strips against outdoor biting mosquitoes. The goal of this study was to modify strips into practical, attractive and acceptable transfluthrin treated sisal and hessian emanators that confer protection against potential infectious bites before people use bed nets especially in the early evening and outdoors. This study was conducted in Kilombero Valley, Ulanga District, south-eastern Tanzania.ResultsThe protective efficacy of hand-crafted transfluthrin-treated sisal decorative baskets and hessian wall decorations against early evening outdoor biting malaria vectors was measured by human landing catches (HLC) in outdoor bars during peak outdoor mosquito biting activity (19:00 to 23:00 h). Treated baskets and wall decorations reduced bites of Anopheles arabiensis mosquitoes by 89% (Relative Rate, RR = 0.11, 95% confidence interval, CI: 0.09–0.15, P < 0.001) and 86% (RR = 0.14, 95% CI: 0.11–0.18, P < 0.001), respectively. In addition, they significantly reduced exposure to outdoor bites of Culex spp. by 66% (RR = 0.34, 95% CI: 0.22–0.52, P < 0.001) and 56% (RR = 0.44, 95% CI: 0.29–0.66, P < 0.001), respectively.ConclusionLocally hand-crafted transfluthrin-treated sisal decorative baskets and hessian wall decorations are readily acceptable and confer protection against outdoor biting malaria vectors in the early evening and outdoors: when people are resting on the verandas, porches or in outdoor social places such as bars and restaurants. Additional research can help support the use of such items as complementary interventions to expand protection to communities currently experiencing outdoor transmission of mosquito-borne pathogens.

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Section: Introductionmentioning

confidence: 99%

Efficacy and user acceptability of transfluthrin-treated sisal and hessian decorations for protecting against mosquito bites in outdoor bars

et al. 2017

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“…Adjacent, rather than mixed, release DEET was effective in reducing the number of mosquitoes attracted to a point source of lactic acid (Dogan et al 1999). DEET has been shown to have a spatial repellent effect in laboratory bioassays (Schreck et al 1970, Mcgovern et al 1967) and in the Þeld via DEET-treated netting (Schreck and Kline 1983). Even though netting in the Þeld experiment was large enough for the insects to pass through, baited traps inside the treated perimeter captured Ͻ1% of the number of Culicoides midges compared with controls.…”

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confidence: 99%

Reduction of Mosquito (Diptera: Culicidae) Attacks on a Human Subject by Combination of Wind and Vapor-Phase DEET Repellent

Hoffmann

Miller²

2002

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In a Central Michigan wetland setting, air drawn through a DEET-impregnated screen using an electric fan and projected toward a human subject significantly reduced mosquito orientation by 74%, landing by 75%, and probing by 70%, relative to no applied wind or DEET. The DEET vapor effect was significant as revealed by a statistically significant wind/DEET interaction. The wind speed at the downwind human subject was 0.6 m/s and the DEET vapor concentration was estimated at 2 microg/liter air. We suggest a combination of directed wind and volatile repellent might be developed as a mosquito deterrent strategy for the backyard setting.

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“…The effects of pheromone mating disruption on parasitoids and other natural enemies of the target pest species has been considered [216]. Residue analyses of pheromone components used in grape pest management have been conducted [277]. [279,220].…”

Section: Behavioral Disruption the Most Common Commercial Technique mentioning

confidence: 99%

“…The use of chemically defined compounds to prevent feeding by crop and veterinary pests is relatively new in IPM programs [9,[75][76][77]. One of the most useful antifeedants under development at present is azadirachtin, a natural product from the neem tree that is active against a wide variety of insect species [264][265][266][267], Among other chemically defined antifeedants, limonoids have been shown to have activity for Colorado potato beetle larvae [268] and termites [269], rotenoids have been shown to have activity for stored products pests [270], and decalins have been shown to have activity for spruce budworms [277]. Antifeedants have been used against aphid vectors of plant-virus disease [272].…”

Section: Containment and Concentration This Technique Also Relies Onmentioning

confidence: 99%

“…In IPM programs related to animal and human health, DEET and other synthetic repellents have been used extensively against mosquitoes [274][275][276][277][278][279][280][281][282][283][284][285][286], against blackflies [287], and against ticks [288]. Recently, the use of natural products as insect repellents has had renewed interest as well.…”

Section: Containment and Concentration This Technique Also Relies Onmentioning

confidence: 99%

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Application of Semiochemicals in Integrated Pest Management Programs

Bjostad

Hibbard

Cranshaw

1993

ACS Symposium Series

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Chemical communication is important in the life cycles of many insect species, principally for the location of mates and food. Structural identification and synthesis has been carried out for many semiochemicals, and a number of techniques have been developed to use these compounds as components of integrated pest management (IPM) programs. Semiochemicals have two main uses in IPM programs: monitoring insect pest populations and preventing agricultural damage by interfering with insect behavior. Pheromones are perhaps the most widely exploited semiochemicals at present, but recent efforts have extended increasingly to the identification and use of compounds involved in interspecific exchange of information as well.The use of semiochemicals to manipulate insect behavior has proved to be one of the most useful components of integrated pest management (IPM) programs. Semiochemicals are compounds that are emitted or displayed by one organism and that affect the behavior of another organism [/]. Perhaps the most important semiochemicals used by insects are those involved in locating mates and food, and at present these are the kinds of semiochemicals most widely exploited for insect control. Semiochemicals with many other kinds of ecological roles have also been characterized in insects, such as compounds that function as warnings, or compounds that mediate the collective activity of many partners in completing large tasks. A number of major reviews of the use of semiochemicals in IPM programs have appeared [7][8][9], as well as a critical review of semiochemical utility in general [10], An extensive list of companies that offer semiochemical lures, traps designed for semiochemical monitoring, and commercial systems for behavioral pest control has been compiled by Inscoe [11].Practical applications of semiochemicals in agriculture fall into two main categories, population monitoring and behavioral pest control. The main use at present is in monitoring insect pests with traps baited with semiochemicals, as a part of making decisions about pesticide application or other control techniques. A second use of semiochemicals is the direct prevention of insect damage by a variety of techniques, including the placement of a large number of semiochemical sources that disrupt the behavior of the insects, mass trapping, attracticides (insecticide lures), and enhancement of parasitoid activity.

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Spatial Action of Mosquito Repellents13

Cited by 27 publications

References 0 publications

Efficacy and user acceptability of transfluthrin-treated sisal and hessian decorations for protecting against mosquito bites in outdoor bars

Efficacy and user acceptability of transfluthrin-treated sisal and hessian decorations for protecting against mosquito bites in outdoor bars

Reduction of Mosquito (Diptera: Culicidae) Attacks on a Human Subject by Combination of Wind and Vapor-Phase DEET Repellent

Application of Semiochemicals in Integrated Pest Management Programs

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