Indoor use of attractive toxic sugar bait in combination with long-lasting insecticidal net against pyrethroid-resistant Anopheles gambiae: an experimental hut trial in Mbé, central Côte d’Ivoire

Furnival‐Adams, Joanna; Camara, Soromane; Rowland, Mark; Koffi, Alphonsine A.; Alou, Ludovic P. Ahoua; Oumbouke, Welbeck A.; N’Guessan, Raphaël

doi:10.1186/s12936-019-3095-1

Cited by 33 publications

(42 citation statements)

References 24 publications

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“…aegypti has the same susceptibility to TSB as the ORL‐susceptible strain. Our findings are in line with three previous studies that evaluated the delivery of insecticides through ingestible baits (ATSB) for controlling pyrethroid‐resistant mosquitoes (Stewart et al 2013, Gu et al, 2019, Furnival‐Adams et al 2020). Laboratory bioassays evaluating three insecticides mixed as an ATSB solution resulted in 90% mortality to pyrethroid‐resistant Anopheles arabiensis and Culex quinquefasciatus (Stewart et al 2013).…”

Section: Discussionsupporting

confidence: 91%

“…Furthermore, experimental hut evaluations of the three ATSB solutions resulted in significant mortality in the pyrethroid‐resistant mosquito populations compared to control mortality. Furnival‐Adams and colleagues (2020) provided evidence that indoor ATSB traps are effective in targeting pyrethroid‐resistant Anopheles gambiae s. l . and increasing mortality when combined with long‐lasting insecticide treated nets (Furnival‐Adams et al 2020).…”

Section: Discussionmentioning

confidence: 99%

“…Furnival‐Adams and colleagues (2020) provided evidence that indoor ATSB traps are effective in targeting pyrethroid‐resistant Anopheles gambiae s. l . and increasing mortality when combined with long‐lasting insecticide treated nets (Furnival‐Adams et al 2020). These studies demonstrate that ATSB delivery provides an opportunity for a broad range of non‐pyrethroid insecticides that are designed for chewing or sucking insects that can be used in resistance management.…”

Section: Discussionmentioning

confidence: 99%

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Evaluation of boric acid as toxic sugar bait against resistant Aedes aegypti mosquitoes

Pearson

Blore

Efstathion

et al. 2020

Journal of Vector Ecology

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Current methods of broad area application of contact insecticides used in mosquito control are becoming less effective, primarily due to resistance within mosquito populations. New methods that can deliver ingestible insecticides are being investigated as a means to mitigate resistance. This study evaluated insecticide delivery through toxic sugar baits (TSB) and resulting mortality of susceptible and resistant strains of Aedes aegypti. Two Ae. aegypti strains were evaluated using a 1% boric acid TSB: the susceptible Orlando 1952 (ORL) strain and the resistant Puerto Rican (PR) strain. The TSB resulted in high mortality for both ORL and PR strain of Ae. aegypti. Average mortality of female mosquitoes given TSB was 90.8% for PR and 99.3% for ORL. Our study suggests that targeting resistant mosquitoes with ingestible insecticides through TSBs could be a viable alternative to current mosquito control strategies and should be considered when developing an integrated vector management program.

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Section: Discussionsupporting

confidence: 91%

Section: Discussionmentioning

confidence: 99%

Section: Discussionmentioning

confidence: 99%

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Evaluation of boric acid as toxic sugar bait against resistant Aedes aegypti mosquitoes

Pearson

Blore

Efstathion

et al. 2020

Journal of Vector Ecology

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“…Thus, controlling malaria vectoring mosquitoes requires new interventions that can work synergistically with existing control tools (Torto 2019). One promising intervention is attractive toxic sugar baits (ATSB), which can be employed for outdoor control, unlike ITNs and IRS, which are primarily developed for indoor use (Adams et al 2020).…”

Section: Introductionmentioning

confidence: 99%

Behavioural and Electrophysiological Responses of Female Anopheles gambiae Mosquitoes to Volatiles from a Mango Bait

et al. 2020

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Attractive Toxic Sugar Baits (ATSB) are used in a "lure-and-kill" approach for management of the malaria vector Anopheles gambiae, but the active chemicals were previously unknown. Here we collected volatiles from a mango, Mangifera indica, juice bait which is used in ATSBs in Tanzania and tested mosquito responses. In a Y-tube olfactometer, female mosquitoes were attracted to the mango volatiles collected 24-48 h, 48-72 h and 72-96 h after preparing the bait but volatiles collected at 96-120 h were no longer attractive. Volatile analysis revealed emission of 23 compounds in different chemical classes including alcohols, aldehydes, alkanes, benzenoids, monoterpenes, sesquiterpenes and oxygenated terpenes. Coupled GC-electroantennogram (GC-EAG) recordings from the antennae of An. gambiae showed robust responses to 4 compounds: humulene, (E)-caryophyllene, terpinolene and myrcene. In olfactometer bioassays, mosquitoes were attracted to humulene and terpinolene. (E)-caryophyllene was marginally attractive while myrcene elicited an avoidance response with female mosquitoes. A blend of humulene, (E)caryophyllene and terpinolene was highly attractive to females (P < 0.001) when tested against a solvent blank. Furthermore, there was no preference when this synthetic blend was offered as a choice against the natural sample. Our study has identified the key compounds from mango juice baits that attract An. gambiae and this information may help to improve the ATSBs currently used against malaria vectors.

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“…Several other control tools have also been proposed including; nano pesticides, microbial pesticides (that are natural occurring bacteria, fungi and viruses) and pesticides of plant origin, which may act as repellents, oviposition deterrents and larvicides etc. 6 , 7 . A new generation biotechnological tool in mosquito control program, based on genetically modified mosquitoes and sterile Insect Technique (SIT) is also being considered 7 , 8 .…”

Section: Introductionmentioning

confidence: 99%

Impregnation of pectin-cedarwood essential oil nanocapsules onto mini cotton bag improves larvicidal performances

Kala

Sogan

Naik

et al. 2020

Sci Rep

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The use pesticide is one of the indispensable means to combat mosquito borne diseases. However, the repeated use of synthetic pesticides has induced resistance in the vector pest along with undesirable impact on the environment. The biodegradability, non-persistent and user's safety are the root cause to prefer plant-derived pesticides to synthetic ones. The botanical based pesticides tend to degrade rapidly under the influence of several environmental factors. For the feasible application as pesticides, the plant products are formulated either as liquid or as purely solid. Despite well-established formulation technology in pesticide delivery, their handling trouble is being ignored. There is difficulty in liquid formulation of pesticide products, as they are prone to splashing and spillage, resulting in contamination, wastage and direct exposure to skin; whereas a solid formulation tends to produce dust. In the present work, cedarwood (Cedrus deodara) essential oil embedded pectin nanocapsules were produced. The nanocapsules were characterized according to their morphology, size, encapsulation efficiency and thermal stability. Furthermore, the nanocapsules were impregnated onto mini cotton tea bags to be employed as RTU (ready to use) formulation for treating the breeding sites of mosquitoes. The larvicidal activity of the bags treated with pectin-cedar wood nanocapsules was assessed against malaria vector, Anopheles culicifacies and 98% mortality was recorded till 4 weeks, this suggests its potential and hassle free applications in controlling mosquito vector. Global health threats, primarily due to mosquito borne diseases can devastate communities in social and economic terms and hinder development progress 1. Among the various vector borne diseases, malaria is the major public health issue, which transmits through the bite of Anopheles mosquitoes 2. According to the World Health Organization (WHO) 2019 report, malaria causes 228 million morbidity cases and 405,000 number of mortality 3. Anopheles culicifacies is alone accountable for 60-65% of the malaria burden 4. A Mosquito-borne disease remains a challenge since there is no vaccine, and further drug resistance is an increasing threat. Under these circumstances, vector control plays a vital role and often remains the only way to prevent disease outbreaks. The control of malaria vector, Anopheles, relies upon indoor residual spray (IRS) and insecticide treated nets (ITN) 5. Several other control tools have also been proposed including; nano pesticides, microbial pesticides (that are natural occurring bacteria, fungi and viruses) and pesticides of plant origin, which may act as repellents, oviposition deterrents and larvicides etc. 6,7. A new generation biotechnological tool in mosquito control program, based on genetically modified mosquitoes and sterile Insect Technique (SIT) is also being considered 7,8. Despite significant progress so far, further investigations are needed to determine if genetically modification based strategies can be an effective metho...

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Indoor use of attractive toxic sugar bait in combination with long-lasting insecticidal net against pyrethroid-resistant Anopheles gambiae: an experimental hut trial in Mbé, central Côte d’Ivoire

Cited by 33 publications

References 24 publications

Evaluation of boric acid as toxic sugar bait against resistant Aedes aegypti mosquitoes

Evaluation of boric acid as toxic sugar bait against resistant Aedes aegypti mosquitoes

Behavioural and Electrophysiological Responses of Female Anopheles gambiae Mosquitoes to Volatiles from a Mango Bait

Impregnation of pectin-cedarwood essential oil nanocapsules onto mini cotton bag improves larvicidal performances

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