Fumigant toxic activity and reproductive inhibition induced by monoterpenes on Acanthoscelides obtectus (Say) (coleoptera), a bruchid of kidney bean (Phaseolus vulgaris L.)

Régnault-Roger, Catherine; Hamraoui, Abdelaziz

doi:10.1016/0022-474x(95)00025-3

Cited by 269 publications

(122 citation statements)

References 16 publications

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“…Thus, in both approaches, the compound identified by our study in basil EO and VOCs might have changed the chemical environment by masking tomato VOCs and preventing T. absoluta females from recognising these plants. Indeed, an oviposition deterrent effect of certain compounds (such as β-caryophyllene, α-pinene, β-pinene, limonene, terpineol-4, thymol and eugenol) has been highlighted for several pests of stored food products (Regnault-Roger and Hamraoui 1995;Ferrarini et al 2008; Chaubey 2012) and also on the potato tuber moth, P. oprculella (Sharaby et al 2009). This finding might explain the difference in oviposition rates by T. absoluta females between associated and non-associated tomato plants.…”

Section: Discussionmentioning

confidence: 99%

Oviposition deterrent activity of basil plants and their essentials oils against Tuta absoluta (Lepidoptera: Gelechiidae)

Yarou

Bawin

Boullis

et al. 2017

Environ Sci Pollut Res

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The leafminer Tuta absoluta Meyrick (Lepidoptera: Gelechiidae) is one of the most important pests of tomato, reducing crop yields by up to 100% in greenhouses and fields, in several countries globally. Because synthetic insecticides lead to resistance and have adverse effects on natural enemies and the health of producers, alternative control methods are needed. In this study, we assessed the oviposition-deterring effect of basil plants, Ocimum gratissimum L. and O. basilicum L. (Lamiaceae), using dual-choice behavioural assays performed in flight tunnels. We found that both plants significantly reduced T. absoluta oviposition behaviour on a tomato plant located nearby. To evaluate the potential effect of basil volatile organic compounds, we formulated essential oils of both plant species in paraffin oil, and observed a similar oviposition-deterring effect. Gas chromatography analyses detected 18 constituents in these essential oils which the major constituents included thymol (33.3%), p-cymene (20.4%), γ-terpinene (16.9%), myrcene (3.9%) in O. gratissimum and estragol (73.8%), linalool (8.6%), β-elemene (2.9%) and E-β-ocimene (2.6%) in O. basilicum. Twenty and 33 compounds were identified of the volatiles collected on O. gratissimum and O. basilicum plants, respectively. The main components include the following: p-cymene (33.5%), γ-terpinene (23.6%), α-terpinene (7.2%), α-thujene (6.7%) and E-α-bergamotene (38.9%) in O. gratissimum, and methyl eugenol (26.1%), E-β-ocimene (17.7%), and linalool (9.4%) in O. basilicum. Four compounds (α-pinene, β-pinene, Myrcene, Limonene) were common in essential oils and plants. Our results suggest the valuable potential of basil and associated essential oils as a component of integrated management strategies against the tomato leafminer.

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Section: Discussionmentioning

confidence: 99%

Oviposition deterrent activity of basil plants and their essentials oils against Tuta absoluta (Lepidoptera: Gelechiidae)

Yarou

Bawin

Boullis

et al. 2017

Environ Sci Pollut Res

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“…Essential oils as well as several terpenes have been utilized in agriculture against fungi, bacteria, nematodes and pest insects. For example, the compounds thymol and 1,8-cineole are already part of some commercial formulations (REGNAULT-ROGER, 1997;ISMAN, 2006).…”

Section: Introductionmentioning

confidence: 99%

Chemical composition and fumigant effect of essentialoil of Lippia sidoides Cham. and monoterpenes against Tenebrio molitor (L.) (coleoptera: tenebrionidae)

et al. 2011

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The chemical composition of Lippia sidoides essential oils obtained by hydrodistillation was characterized and quantified by GC/MS and their insecticidal activity by fumigation test was assayed against Tenebrio molitor. Moreover, the toxicity of monoterpenes carvacrol, 1,8-cineol and thymol were also evaluated when applied alone or in binary (1:1) or tertiary (1:1:1) mixture. The essential oil of L. sidoides has as major constituents carvacrol (31.68%), -cymene (19.58%), 1,8-cineole (9.26%) and -terpinene (9.21%), from a 21 compounds identified, being 92.53% of total. Both compounds have insecticidal activity against T. molitor, being the degree of toxicity of carvacrol > 1,8-cineole > L. sidoides essential oil > thymol, and its respectively LC 50 at 24h were 5.53; 5.71; 8.04 and 14.71 µL/L air. When the different mixture of carvacrol, 1,8-cineole and thymol was assayed against T. molitor, the synergism among them was observed. For the mixture of carvacrol:1,8-cineole LC 50 was 5.34 µL/L air; carvacrol:thymol 7.67 µL/L air; 1,8-cineole:thymol 7.51 µL/L air and carvacrol:1,8-cineole:thymol 6.34 µL/L air. Mainly, the monoterpene thymol had a synergic effect, which increased the toxicity of carvacrol and 1,8-cineole, both in binary mixture like carvacrol:thymol and 1,8-cineole:thymol.Index terms: "Alecrim pepper", mealworm, natural compound, toxicity, synergism. RESUMOA composição química do óleo essencial de Lippia sidoides obtido por hidrodestilação foi caracterizada e quantificada por GC/MS, bem como sua atividade inseticida por teste de fumigação foi avaliada sobre Tenebrio molitor. Além disso, a toxicidade dos monoterpenos carvacrol, 1,8-cineol e timol, também foi avaliada quando esses compostos foram aplicados isoladamente, ou em misturas binárias (1:1), ou terciárias (1:1:1). O óleo essencial de L. sidoides tem como principais constituintes o carvacrol (31,68%), ñ-cimeno (19,58%), 1,8-cineol (9,26%) e -terpineno (9,21%), em 21 compostos identificados, sendo 92,53% do total. Termos para indexação: Alecrim pimenta, bicho-da-farinha, produto natural, toxicidade, sinergismo.

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“…The profile obtained from our GC and GC-MS analysis of L. rugosa essential oil was quantitatively different from that reported by Ngassoum et al, (2005) and Tatsadjieu et al, (2008) who found that L. rugosa leaves collected from Ngaoundere was mainly constituted of geraniol (51.6%), nerol (18.2%), geranial (10.8%) and Linalool (4.6%). That difference in the chemical composition confirmed the fact that the chemical compounds of any plant essential oil can vary greatly with geographical region, the age of the plant, local climatic, seasonal and experimental conditions (Regnault-Roger and Hamaraou 1995;Daferara et al, 2000).…”

Section: Chemical Constituents Of the Essential Oilsmentioning

confidence: 57%

Mycelia growth inhibition of some Aspergillus and Fusarium species by essential oils and their potential use as antiradical agent

Aoudou¹,

Léopold²

2011

ABJNA

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The essential oils extracted from Lippia rugosa and Plectranthus glandulosus leaves from Cameroon were analysed by GC-MS and evaluated for their antifungal activities against Aspergillus flavus, Aspergillus niger and Fusarium moniliforme common fungi causing spoilage of stored food product, and antiradical activities. The disc diffusion method was used to evaluate the fungal growth inhibition at various concentrations of oils while the antiradical activity was studied by the DPPH (diphenyl picryl hydrazyl) method. The main components found in P. glandulosus leaves oil were terpinolene (30.8%), fenchone (13.2%), terpene 4-ol (11%) and piperitenone oxyde (8%) whereas L. rugosa leaves oil is mainly constituted of thymol (26.7%), p-cymene (15.5%), thymol acetate (13.2%) and γ-terpinene (9.4%). L. rugosa exhibited the lowest MIC value in liquid medium ranged from 0.2 to 0.3 mg/ml against all fungal strain, and P. glandulosus which was less active with value ranged from 0.8 to 1mg/ml against all fungal strain. The antiradical activity of L. rugosa essential oil (SC 50 = 6.7 g/l) was less than that of butylated hydroxyl toluene (BHT) which was used as the reference compound (SC 50 = 0.007 g/l). Results obtained in the present study indicate the possibility of exploiting these essential oils in the fight against strains of A. flavus, A. niger and Fusarium moniliforme responsible for biodeterioration of stored food products.

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Fumigant toxic activity and reproductive inhibition induced by monoterpenes on Acanthoscelides obtectus (Say) (coleoptera), a bruchid of kidney bean (Phaseolus vulgaris L.)

Cited by 269 publications

References 16 publications

Oviposition deterrent activity of basil plants and their essentials oils against Tuta absoluta (Lepidoptera: Gelechiidae)

Oviposition deterrent activity of basil plants and their essentials oils against Tuta absoluta (Lepidoptera: Gelechiidae)

Chemical composition and fumigant effect of essentialoil of Lippia sidoides Cham. and monoterpenes against Tenebrio molitor (L.) (coleoptera: tenebrionidae)

Mycelia growth inhibition of some Aspergillus and Fusarium species by essential oils and their potential use as antiradical agent

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