Insecticidal and Repellent Effects of the Essential Oils Extract from Zanthoxylum myriacanthum against Three Storage Pests.
Chem Biodivers
; 20(2): e202200493, 2023 Feb.
Article
em En
| MEDLINE
| ID: mdl-36627746
ABSTRACT
The co-storage of two or more Chinese herbal medicines can effectively prevent the herbs from the damage by pests. Thus, it is important to protect herbs and crops to study Chinese herbal medicines and their medicinal components against storage pests. This study aimed to assess the insecticidal activities and repellent effect of essential oils (EOs) extracted from fruits at different periods from Zanthoxylum myriacanthum Wall. ex Hook. f. (1â
h, 2â
h, 3-5â
h and 5-7â
h), and their major compounds against three kinds of pests (Tribolium castaneum, Lasioderma serricorne, and Liposcelis bostrychophila). The results of gas chromatography-mass spectrometer analysis revealed homomyrtenol (22.56 %, 28.01 %, 28.48 % and 28.41 %, respectively) and p-cymene (30.58 %, 13.95 %, 24.97 % and 6.85 %, respectively) were the common major compounds of the EOs at 1â
h, 2â
h, 3-5â
h, and 5-7â
h. m-Cymene contents in EOs of fruits, 1â
h, 2â
h and 3-5â
h were 3.85 %, 0.95 %, 6.71 %, and 6.15 %, respectively. According to Principal component analysis (PCA), the composition of fruits' EO was significantly different from other EOs due to the different collection times. The bio-assays showed that EOs and major compounds were toxic to all three pests, but the fumigation effect on L. bostrychophila was not noticeable. EOs extracted at different times had a repellent effect on the three pests at the highest concentration (78.63â
nL/cm2 ), but the attractive effects of the EOs of 3-5â
h, 5-7â
h, and p-cymene were observed at the low concentrations (3.15, 0.63 and 0.13â
nL/cm2 ). Our results suggest that Z. myriacanthum have the potential to be developed as biological insecticides.
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Base de dados:
MEDLINE
Assunto principal:
Tribolium
/
Óleos Voláteis
/
Zanthoxylum
/
Repelentes de Insetos
/
Inseticidas
Idioma:
En
Ano de publicação:
2023
Tipo de documento:
Article