scholarly journals Smelling Good Enough to Kill! Plant Essential Oils and their Insecticidal Activity

2020 ◽  
Author(s):  
Fardad Firooznia ◽  
Maryam Said ◽  
Gavin Balkaran ◽  
Jhunior Morillo
2018 ◽  
Vol 111 (2) ◽  
pp. 653-661 ◽  
Author(s):  
Hwa-Jeong Yeom ◽  
Hyo-Rim Lee ◽  
Sung-Chan Lee ◽  
Ji-Eun Lee ◽  
Seon-Mi Seo ◽  
...  

2013 ◽  
Vol 13 (142) ◽  
pp. 1-13 ◽  
Author(s):  
Filitsa Karamaouna ◽  
Athanasios Kimbaris ◽  
Αntonios Michaelakis ◽  
Dimitrios Papachristos ◽  
Moschos Polissiou ◽  
...  

2004 ◽  
Vol 41 (4) ◽  
pp. 699-704 ◽  
Author(s):  
Young-Cheol Yang ◽  
Hoi-Seon Lee ◽  
J. M. Clark ◽  
Young-Joon Ahn

2020 ◽  
Vol 57 (4) ◽  
pp. 1149-1156
Author(s):  
Jun-Hyung Tak ◽  
Quentin Robert Renaud Coquerel ◽  
Maia Tsikolia ◽  
Ulrich R Bernier ◽  
Kenneth Linthicum ◽  
...  

Abstract Aedes aegypti L. (Diptera: Culicidae) is one of the most medically important mosquito species, due to its ability to spread viruses of yellow fever, dengue fever, and Zika in humans. In this study, the insecticidal activity of 17 plant essential oils was evaluated via topical application against two strains of Ae. aegypti mosquito, Orlando (insecticide-susceptible) and Puerto Rico (pyrethroid-resistant). Initial screens with the Orlando strain showed that cucumber seed oil (2017 sample) was the most toxic, followed by sandalwood and thyme oil. When the essential oils were mixed with permethrin, they failed to show any significant synergism of insecticidal activity. Sandalwood and thyme oils displayed consistently high mortality against the resistant Puerto Rico strain, with low resistance ratios of 2.1 and 1.4, respectively. In contrast, cucumber seed oil showed significantly less activity against Puerto Rico mosquitoes, with a resistance ratio of 45. Bioactivity-guided fractionation of the 2017 sample of cucumber seed oil sample via flash column chromatography produced 11 fractions, and gas-chromatography/mass spectrometry analysis revealed that the three active fractions were contaminated with 0.33, 0.36, and 0.33% of chlorpyrifos-methyl, an organophosphorus insecticide, whereas inactive fractions did not show any trace of it. These results suggested that the insecticidal activity of cucumber seed oil was probably due to the presence of the insecticide, later confirmed with a clean batch of cucumber seed oil obtained in 2018, which showed negligible insecticidal activity. These findings demonstrate clearly the need for essential oil analysis to confirm purity before any claims are made about pesticidal potency.


2013 ◽  
Vol 6 (1) ◽  
pp. 337 ◽  
Author(s):  
Annick D Bossou ◽  
Sven Mangelinckx ◽  
Hounnankpon Yedomonhan ◽  
Pelagie M Boko ◽  
Martin C Akogbeto ◽  
...  

2018 ◽  
Vol 17 (6) ◽  
pp. 167-174 ◽  
Author(s):  
Małgorzata Schollenberger ◽  
Tomasz M. Staniek ◽  
Elżbieta Paduch-Cichal ◽  
Beata Dasiewicz ◽  
Agnieszka Gadomska-Gajadhur ◽  
...  

Plant essential oils of six aromatic herb species and interspecies hybrids of the family Lamiaceae – chocolate mint (Mentha piperita × ‘Chocolate’), pineapple mint (Mentha suaveolens ‘Variegata’), apple mint (Mentha × rotundifolia), spearmint (Mentha spicata), orange mint (Mentha × piperita ‘Granada’) and strawberry mint (Mentha × villosa ‘Strawberry’) – were investigated for antimicrobial effects against plant pathogenic bacteria: Agrobacterium tumefaciens, Pseudomonas syringae pv. syringae and Xanthomonas arboricola pv. corylina. The screening was carried out in vitro on agar plates filled with the target organism. All essential oils screened exhibited a higher level of antibacterial activity against A. tumefaciens and X. arboricola pv. corylina than streptomycin used as a standard in all tests. The antimicrobial effect of streptomycin and five mint oils was at the same level for P. syringae pv. syringae. There were no significant differences in the influence of the chocolate mint oil on the growth inhibition of all bacteria tested. Plant essential oils from pineapple mint, apple mint, spearmint and strawberry mint showed the weakest antimicrobial activity against P. syringae pv. syringae and the strongest towards A. tumefaciens and X. arboricola pv. corylina. The essential oils from strawberry mint, pineapple mint, spearmint and apple mint had the strongest effect on A. tumefaciens, and the lowest inhibitory activity was exhibited by the chocolate mint and orange mint essential oils. X. arboricola pv. corylina was the most sensitive to the strawberry mint, pineapple mint and spearmint oils. The chocolate mint oil showed the greatest activity against P. syringae pv. syringae.


Sign in / Sign up

Export Citation Format

Share Document