scholarly journals Insecticidal activity of young and mature leaves essential oil from Eucalyptus globulus Labill. against Tribolium confusum Jacquelin du Val (Coleoptera: Tenebrionidae)

2015 ◽  
Vol 75 (3) ◽  
pp. 375-379 ◽  
Author(s):  
Serafina Russo ◽  
Nora Cabrera ◽  
Hugo Chludil ◽  
Margarita Yaber-Grass ◽  
Silvia Leicach
Keyword(s):  
Essential Oil ◽  
Insecticidal Activity ◽  
Eucalyptus Globulus ◽  
Tribolium Confusum ◽  
Mature Leaves ◽  
Coleoptera Tenebrionidae

Repellent Effects of the Insecticide Based on Porous Starch and Fennel Essential Oil against Tribolium confusum

2010 ◽  
Vol 152-153 ◽  
pp. 476-479
Author(s):  
Xi Hong Li ◽  
Ling Yan Ge ◽  
Jing Wang
Keyword(s):  
Essential Oil ◽  
Insecticidal Activity ◽  
Ethyl Acrylate ◽  
Significant Loss ◽  
Tribolium Confusum ◽  
Fumigant Toxicity ◽  
Production Methods ◽  
Insecticidal Effect ◽  
Repellent Action

The insecticidal effects of the insecticide based on the mixture of porous starch and fennel essential oil was investigated. Its insecticidal activity and its mortality on adults of Tribolium confusum were evaluated. Moreover, the production methods used in the evaluation was studied. Fennel essential oil was put into the porous starch with glycerin and ethyl acrylate. Non-woven was chosen as the substrate, and ethyl acrylate as adhesives. Then the new insecticide was made. According to the fumigant toxicity and persistent of the new insecticide, the insecticidal effect of the insecticide was analyzed. Tribolium confusum mortality was dose dependant and after 4-day exposure the insecticide was more toxic than the pure fennel essential oil. There was, however, a highly significant loss of toxicity after 24 and 48 h following treated with essential oil and insecticide, respectively. The fennel essential oil evoked moderated repellent action and high fumigant toxicity (LD50 = 0.030μL/cm3) against adults of Tribolium confusum.

scholarly journals Insecticidal activity of garlic essential oil and their constituents against the mealworm beetle, Tenebrio molitor Linnaeus (Coleoptera: Tenebrionidae)

2017 ◽  
Vol 7 (1) ◽  
Author(s):  
Angelica Plata-Rueda ◽  
Luis Carlos Martínez ◽  
Marcelo Henrique Dos Santos ◽  
Flávio Lemes Fernandes ◽  
Carlos Frederico Wilcken ◽  
...  
Keyword(s):  
Essential Oil ◽  
Insecticidal Activity ◽  
Tenebrio Molitor ◽  
Mealworm Beetle ◽  
Garlic Essential Oil ◽  
Coleoptera Tenebrionidae

scholarly journals By-product hydrosol of Eucalyptus globulus essential oil distillation as source of botanical insecticides: wealth from waste

2021 ◽  
Vol 13 (1) ◽  
pp. 10854
Author(s):  
Arun D. SHARMA ◽  
Inderjeet KAUR
Keyword(s):  
Medicinal Plants ◽  
Secondary Metabolites ◽  
Essential Oil ◽  
Human Health ◽  
Insecticidal Activity ◽  
Eucalyptus Globulus ◽  
Botanical Insecticides ◽  
Ft Ir ◽  
Mealy Bug ◽  
Chemical Pesticides

Worldwide use of chemical pesticides is on rise which is creating a big problem to environment and human health. Hence great interest has been generated to find out botanical leads having anti-pest properties from medicinal plants. The objective of this work was to evaluate the insecticidal potential of Eucalyptus globulus waste hydrosol obtained after essential oil distillation. Samples of Eucalyptus globulus genus were collected from near-by areas of study, and were hydro-distilled and their by-product ‘hydrosol was analyzed for phenolics and tannin determination. UV-VIS, FT-IR and fluorescent study was also conducted of by-product hydrosol. In addition, insecticidal activity of by-product hydrosol was also monitored against mealy bug. Substantial amount of phenolics and tannins were detected in the by-product hydrosol. UV and fluorescent spectroscopy revealed the presence of secondary metabolites. Significantly higher insecticidal activity was observed of by-product hydrosol against mealy bug. The results suggested that by-product hydrosol from Eucalyptus globulus essential oil distillation can be considered as potential candidates for bio-control of pests.

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

2011 ◽  
Vol 35 (4) ◽  
pp. 664-671 ◽  
Author(s):  
Rafaela Karin Lima ◽  
Maria das Graças Cardoso ◽  
Jair Campos Moraes ◽  
Stephan Malfitano Carvalho ◽  
Vanessa Gregório Rodrigues ◽  
...  
Keyword(s):  
Chemical Composition ◽  
Essential Oil ◽  
Binary Mixture ◽  
Essential Oils ◽  
Insecticidal Activity ◽  
Tenebrio Molitor ◽  
Synergic Effect ◽  
Lippia Sidoides ◽  
Coleoptera Tenebrionidae

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%), ρ-cymene (19.58%), 1,8-cineole (9.26%) and ϒ-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 LC50 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 LC50 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.

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