Chemical composition and insecticidal activity of essential oils from cultivated and native aromatic plants of Argentina against Carpophilus dimidiatus (Fabricius) (Nitidulidae) and Oryzaephilus mercator (L.) (Silvanidae)

• Published in: Natural product research Vol. 37; no. 23; pp. 1 - 4062
• Main Authors: Denett, Gabriel O, Comelli, Nieves C, Rodriguez, María R, Gómez, Analía de Los A, Sanchez Matías, Mariana Del H, Sampietro, Diego A
• Format: Journal Article
• Language: English
• Published: England Taylor & Francis Ltd 02-12-2023
• Subjects: Aloysia gratissima; Carpophilus dimidiatus; Caryophyllene; Chemical composition; Cineole; Cuminum cyminum; Essential oils; Humulene; Insecticides; Ketones; Limonene; Lippia integrifolia; Lippia junelliana; Ocimene; Oryzaephilus mercator; Pimpinella anisum; Spathulenol; Tagetes minuta; Terpinene; Verbenone; α-Pinene; Beetles; essential oils; Carpophilus; Oryzaephilus; insecticidal
• ISSN: 1478-6419; 1478-6427
• DOI: 10.1080/14786419.2023.2166043

Essential oils from aerial parts of six aromatic plants were analysed by GC-MS. The major compounds identified were
-terpinene (11.5%), cuminaldehyde (26.6%) and
-terpinen-7-al (40.6%) in
,
-anethol (95.2%) in
, α-pinene (11.6%), limonene (21.0%), β-caryophyllene (22.3%) and α-humulene (16.7%) in
, limonene (40.8%) and artemisia ketone (19.3%) in
,
-β-ocimene (15.6%), 4-ethyl-4-methyl-1-hexene (24.5%),
-tagetone (20.5%) and verbenone (27.2%) in
, 1,8-cineole (17.9%),elixene (10.3%) and spathulenol (13.8%) in
. Oils with strong insecticidal activity on
and
were from
(LC
= 4 µl/L; LC
= 10 µl/L) and
(LC
=10.19-12.57 µl/L; LC
=20 µl/L). Scents of
and
were strong insecticides on
(LC
=7.02-7.17 µl/L; LC
=10.00-20.00 µl/L). The insecticidal activity was associated to the whole content of C10 molecules and oxygenated constituents. The
oil is promising as protective agent of nut products.