Use este identificador para citar ou linkar para este item: https://locus.ufv.br//handle/123456789/12488
Tipo: Artigo
Título: Insecticidal activity of garlic essential oil and their constituents against the mealworm beetle, Tenebrio molitor Linnaeus (Coleoptera: Tenebrionidae)
Autor(es): Plata-Rueda, Angelica
Martínez, Luis Carlos
Santos, Marcelo Henrique Dos
Fernandes, Flávio Lemes
Wilcken, Carlos Frederico
Soares, Marcus Alvarenga
Serrão, José Eduardo
Zanuncio, José Cola
Abstract: This study evaluated the insecticidal activity of garlic, Allium sativum Linnaeus (Amaryllidaceae) essential oil and their principal constituents on Tenebrio molitor. Garlic essential oil, diallyl disulfide, and diallyl sulfide oil were used to compare the lethal and repellent effects on larvae, pupae and adults of T. molitor. Six concentrations of garlic essential oil and their principal constituents were topically applied onto larvae, pupae and adults of this insect. Repellent effect and respiration rate of each constituent was evaluated. The chemical composition of garlic essential oil was also determined and primary compounds were dimethyl trisulfide (19.86%), diallyl disulfide (18.62%), diallyl sulfide (12.67%), diallyl tetrasulfide (11.34%), and 3-vinyl-[4H]-1,2-dithiin (10.11%). Garlic essential oil was toxic to T. molitor larva, followed by pupa and adult. In toxic compounds, diallyl disulfide was the most toxic than diallyl sulfide for pupa > larva > adult respectively and showing lethal effects at different time points. Garlic essential oil, diallyl disulfide and diallyl sulfide induced symptoms of intoxication and necrosis in larva, pupa, and adult of T. molitor between 20–40 h after exposure. Garlic essential oil and their compounds caused lethal and sublethal effects on T. molitor and, therefore, have the potential for pest control.
Palavras-chave: Garlic essential oil
Insecticidal activity
Tenebrio molitor
Coleoptera: Tenebrionidae
Editor: 2045-232
Tipo de Acesso: Open Access
URI: http://dx.doi.org/10.1038/srep46406
http://www.locus.ufv.br/handle/123456789/12488
Data do documento: 20-Abr-2017
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