Repellent studies with <i>Aedes aegypti </i>mosquitoes and human olfactory tests on 19 essential oils from Corsica, France

Drapeau, Jeremy; Fröhler, C.; Touraud, Didier; Kröckel, Ulla; Geier, Martin; Rose, Andreas; Kunz, Werner

doi:10.1002/ffj.1928

Cited by 31 publications

(19 citation statements)

References 20 publications

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“…Since antiquity the species has had various uses (Jashemski, 1999). The leaves, rich in flavonoids, are used in traditional medicine (Bandini and Pacchiani, 1981;Montesano et al, 2012), in Italy and Portugal it is used for food seasoning (Pardo- de-Santayana et al, 2007), and essential oil from leaves could be used as fragrance for insect repellent products (Alan et al, 2011;Bo zovi c and Ragno, 2017;Drapeau et al, 2009).…”

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confidence: 99%

Studies on Seed Germination and Micropropagation of Clinopodium nepeta: A Medicinal and Aromatic Plant

Vlachou¹,

Papafotiou²,

Bertsouklis³

2019

horts

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Seed ecophysiology and micropropagation of Clinopodium nepeta, an aromatic Mediterranean plant with pharmaceutical and horticultural uses was investigated. The optimum germination temperature of seeds stored at room temperature for 0, 6, or 12 months was 15 to 20 °C (100% germination completed in 10 to14 days) and cardinal temperatures were defined at 10 and 30 °C (80% to 82% and 62% to 76% germination, respectively). Six or 12 months of storage did not seem to affect germination, although 12-month-old seeds germinated at higher percentage and completed germination earlier at 15 °C than at 20 °C. Concerning micropropagation, shoot multiplication at subcultures of both adult plant- and seedling-origin nodal explants was tested on Murashige and Skoog (MS) medium supplemented with various cytokinin types, i.e., zeatin (ZEA), 6-benzyladenine (BA), kinetin (KIN), and 6-γ-γ-(dimethylallylamino)-purine (2IP), at various concentrations from 0.0 to 8.0 mg·L−1. Both explant types presented a rather similar response during in vitro culture. Increasing concentration of all cytokinin types resulted in an increase in shoot number per responding explant (1.1–5.3) and in most cases a decrease in shoot length (0.6–3.4 cm). Increasing cytokinin concentration induced hyperhydricity to a number of shoots (0.1–6.5) per explant, mostly when ZEA and BA were used. Supplementing the MS medium with 8.0 mg·L−1 BA combined with 0.1 mg·L−1 1-naphthaleneacetic acid (NAA) led to almost elimination of hyperhydricity and very satisfactory shoot production (80%/88% explant response and 6.5/7.5 shoot number per responding explant for seedling- / adult-origin explants, respectively). Alternatively, increasing the agar concentration to 12.0 g·L−1 and supplementing the medium with 8.0 mg·L−1 BA only, resulted in the same effect on eliminating hyperhydricity, such as the addition of NAA, and in the best shoot multiplication response achieved in this study (100% explant response, 9.4/9.9 shoots per explant for seedling-/adult-origin explants, respectively). Microshoots rooted abundantly (92% to 100%) on half-strength MS medium, either Hf or supplemented with 0.5 mg·L−1 to 4.0 mg·L−1 indole-3-butyric acid (IBA). The addition of IBA to the rooting medium, regardless of its concentration, affected only the root length by increasing it 2- to 3-fold. Microshoot clusters produced on multiplication media rooted at 96% when cultured on Hf half-strength MS medium. Rooted microshoots and shoot clusters survived at 80% to 100%, respectively, after ex vitro acclimatization in peat:perlite 1:1 (v/v).

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confidence: 99%

Studies on Seed Germination and Micropropagation of Clinopodium nepeta: A Medicinal and Aromatic Plant

Vlachou¹,

Papafotiou²,

Bertsouklis³

2019

horts

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“…The THY essential oil was selected as a negative control because it was reported to have weak spatial effects on Ae. aegypti in olfactometer tests (Drapeau et al 2009). The ßight activity was high when odors from the Þnger were presented in the airstreams in combination with ethanol (Fig.…”

Section: Resultsmentioning

confidence: 99%

Laboratory Evaluation Techniques to Investigate the Spatial Potential of Repellents for Push and Pull Mosquito Control Systems

Obermayr¹,

Rüther²,

Bernier³

et al. 2012

jnl. med. entom.

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A protocol has been developed for the indoor evaluation of candidate spatial repellents intended for use in push and pull systems. Single treatments (catnip oil, 1-methylpiperazine, and homopiperazine) and a mixture of catnip oil and homopiperazine were tested with yellow-fever mosquitoes (Aedes aegypti) in Y-tube olfactometers to determine 1) if these compounds inhibited mosquito host-seeking at short distances and 2) if results obtained in olfactometer tests can be correlated with a larger scale set-up, that is, a room test. All test materials significantly decreased the ability of mosquitoes to find host odors (from a human finger) by up to 96.7% (2.5% catnip and homopiperazine mix). Similar effects could be observed within a new room test set-up, which involved a repellent dispensing system and an attractive trap (BG-Sentinel). Mosquitoes captured by the BGS trap had to fly through a treatment-containing air curtain created by the dispensing system. Compared with the use of a control (ethanol solvent without candidate repellent), trap catch rates were significantly reduced when 5% catnip, 5% 1-methylpiperazine, and 5% homopiperazine were dispensed. Homopiperazine produced the greatest level of host-seeking inhibition with a 95% reduction in the trap catches. The experimental set-up was modified to test the viability of those technologies in a simple push & pull situation.. The combination of BGS trap and a 10% mix of catnip and homopiperazine helped to reduce human landing rates by up to 44.2% with a volunteer sitting behind the air curtain and the trap running in front of the curtain.

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“…A review of different studies (Drapeau et al, 2009;Conti et al, 2010;Kim et al, 2011) showed that certain plant species present, and sometimes abundant, in the ARD (Foeniculum vulgare, Lavandula pedunculata, Origanum vulgare or Rosmarinus officinalis) are not used as insecticides. Work in other communities must be carried out to obtain fresh data.…”

Section: Discussionmentioning

confidence: 99%

Traditional plant-based remedies to control insect vectors of disease in the Arribes del Duero (western Spain): An ethnobotanical study

González

García-Barriuso

Gordaliza

et al. 2011

Journal of Ethnopharmacology

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Repellent studies with Aedes aegypti mosquitoes and human olfactory tests on 19 essential oils from Corsica, France

Cited by 31 publications

References 20 publications

Studies on Seed Germination and Micropropagation of Clinopodium nepeta: A Medicinal and Aromatic Plant

Studies on Seed Germination and Micropropagation of Clinopodium nepeta: A Medicinal and Aromatic Plant

Laboratory Evaluation Techniques to Investigate the Spatial Potential of Repellents for Push and Pull Mosquito Control Systems

Traditional plant-based remedies to control insect vectors of disease in the Arribes del Duero (western Spain): An ethnobotanical study

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