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 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.

scholarly journals Temperature-dependent Development Model of Larvae of Mealworm beetle, Tenebrio molitor L. (Coleoptera: Tenebrionidae)

2013 ◽  
Vol 52 (4) ◽  
pp. 387-394 ◽  
Author(s):  
Hui-Yeon Koo ◽  
Seon-Gon Kim ◽  
Hyung-Keun Oh ◽  
Jung-Eun Kim ◽  
Duck-Soo Choi ◽  
...  
Keyword(s):  
Tenebrio Molitor ◽  
Development Model ◽  
Temperature Dependent ◽  
Dependent Development ◽  
Mealworm Beetle ◽  
Coleoptera Tenebrionidae
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