Fumigant toxicity of Lavandula spica essential oil and linalool on different life stages of Tribolium confusum (Coleoptera: Tenebrionidae)

Kheloul, Lynda; Anton, Sylvia; Gadenne, Christophe; Kellouche, Abdellah

doi:10.1016/j.aspen.2020.02.008

Cited by 24 publications

(9 citation statements)

References 28 publications

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“…Results of this study demonstrated total elimination of emergence when eggs were exposed to 5 μL EO/L, which could be explained by larvicidal effects of lavender EO and their major constituent linalool. This conclusion was consistent with previous results where young larvae (L1) of the cereal seed pest T. confusum were most sensitive to toxic effects of L. spica EO and linalool, with LC 50 = 19.535 μL/L air and LC 50 = 14.198 μL/L air, respectively during 24 h of exposure [ 45 ]. In the same study, linalool caused greater mortality of eggs than did L. spica oil at equal concentrations and reduced emergence of surviving adults, larvae and pupae [ 45 ].…”

Section: Resultssupporting

confidence: 93%

Lavandula dentata L.: Phytochemical Analysis, Antioxidant, Antifungal and Insecticidal Activities of Its Essential Oil

Abdali

Agour

Allali

et al. 2022

Plants

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Antioxidant, antifungal and insecticidal activities of essential oil (EO) extracted from the Moroccan lavender (Lavandula dentata) were investigated and their chemical constituents determined. Gas chromatography with flame ionization detection (GC-FID) and gas chromatography-mass spectrometry analyses (GC-MS) were used to examine the phytochemical composition of EO. Antioxidant potential was examined in vitro by use of three tests: DPPH inhibition, reducing power (FRAP) and total antioxidant capacity (TAC). Antifungal activity was assessed by calculating inhibition of growth of Alternaria alternata, Botrytis cinerea and Fusarium oxysporum. Repellent potential and toxicity of EO by contact and inhalation were performed against Callosobruchus maculatus. Sixteen constituents were detected in the EO of Lavandula dentata. The major component was linalool (45.06%) followed by camphor (15.62%) and borneol (8.28%). EO exhibited a significant antioxidant activity, as measured by DPPH and FRAP assays, with IC50 and EC50 values of 12.95 ± 1.300 mg/mL and 11.88 ± 0.23 mg/mL, respectively. EO of lavender exhibited total antioxidant capacity of 81.28 ± 2.28 mg AAE/g EO. EO of lavender showed an inhibitory effect on mycelial growth against tested fungi and was 100% in the case of B. cinerea. EO caused total mortality of adult C. maculatus from 5 µL/L air with LC50 value of 4.01 µL/L air. Significant reduction in numbers of eggs laid (99.2%) and emergence (100%) was observed in a dose-dependent manner up to maxima of 100% and 99.2%, respectively. EO of lavender also showed a moderate potency to repel insects with a mean of 34.44%. EO of Moroccan Lavandula dentata has potential to be an effective natural agent against free radical damage and could be an environmentally friendly alternative bio-fungicide and bio-insecticide.

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Section: Resultssupporting

confidence: 93%

Lavandula dentata L.: Phytochemical Analysis, Antioxidant, Antifungal and Insecticidal Activities of Its Essential Oil

Abdali

Agour

Allali

et al. 2022

Plants

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“…Indeed, young larvae are the most sensitive to the toxic effects of linalool after 24 hours of exposure, while older larvae were little affected by fumigation. Linalool resulted in high mortality in eggs but lower mortality in pupae and adults (Kheloul et al, 2020). Direct toxicity was observed from monoterpenoids and tannins; the exposure of females to the vapors was found to cause a decrease in fecundity and hatching rate (Stamopoulos et al, 2007).…”

Section: Discussionmentioning

confidence: 99%

Bioactive Substances of Cydonia oblonga Fruit : Insecticidal Effect of Tannins on Tribuliumm confusum

Djilali

Mehraz

Bouacem

et al. 2021

International Journal of Fruit Science

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The objective of this study was to evaluate the phytochemical, antimicrobial, and insecticidal properties of tannins derived from Cydonia oblonga fruit.Qualitative and quantitative methods were used for the determination of the phytochemicals of Cydonia oblonga fruits. The tannins of this fruit were extracted using solvents and salts, and their antimicrobial activity against S. aureus ATCC 25923 and E.coli ATCC 25322 and C.albicans was investigated.The lethal effect of tannins extract was evaluated on Tribolium confusum under controlled laboratory conditions (at temperature 28 ± 2°C, relative humidity 75 ± 5%, and photoperiod of 16:8).The obtained results showed very interesting levels of tannins extraction (9.66%, 7.33%) using solvents and salts, respectively. The obtained tannins exerted no antimicrobial activity for the tested strains.On the other hand, all doses (50 μl, 100 μl, and 200 μl) of tannins tested on Tribolium confusum adults by the inhalation method showed a bioinsecticidal effect with an LD50 of 109.64 μl of tannin extract. Cydonia oblonga fruit can be an alternative for the development of natural drugs and insecticides with an important role in the fight against parasites.

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“…Lavender cultivars used in this study showed fumigant activity against S. granarius, in parallel with the results of other studies against various stored product pests (Al-Ansari et al, 2021;Al-Harbi et al, 2021). Kheloul et al (2020) reported that L. angustifolia EOs showed significant fumigant activity against S. granarius and the LC50 value was 1.57 mg/l. In addition, it has been reported that the main components of the EOs of L. angustifolia are linalool (23.8%), 1,8-cineole (12.0%) and borneol (10.7%).…”

Section: Discussionmentioning

confidence: 99%

Chemical components and insecticidal effects of essential oils from three lavender cultivars against adult Sitophilus granarius (L., 1758) (Coleoptera: Curculionidae)

Alkan¹,

Güzel²,

Akşit³

et al. 2021

Turkish Journal of Entomology

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Fumigant toxicity of Lavandula spica essential oil and linalool on different life stages of Tribolium confusum (Coleoptera: Tenebrionidae)

Cited by 24 publications

References 28 publications

Lavandula dentata L.: Phytochemical Analysis, Antioxidant, Antifungal and Insecticidal Activities of Its Essential Oil

Lavandula dentata L.: Phytochemical Analysis, Antioxidant, Antifungal and Insecticidal Activities of Its Essential Oil

Bioactive Substances of Cydonia oblonga Fruit : Insecticidal Effect of Tannins on Tribuliumm confusum

Chemical components and insecticidal effects of essential oils from three lavender cultivars against adult Sitophilus granarius (L., 1758) (Coleoptera: Curculionidae)

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