Insecticidal and repellence activity of the essential oil of Pogostemon cablin against urban ants species

Insecticidal and repellence activity of the essential oil of Pogostemon cablin against urban ants species

This study reveals the insecticidal and repellence activity of patchouli essential oil (Pogostemon cablin) against three species of urban ants potentially vectors of pathogens. •Species of urban ants can cause damage to human health.•Insecticidal and repellence activity of this essential oil was tes...

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Published in:Acta tropica Vol. 127; no. 3; pp. 181 - 186
Main Authors: Albuquerque, Elânia L.D., Lima, Janaína K.A., Souza, Felipe H.O., Silva, Indira M.A., Santos, Abraão A., Araújo, Ana Paula A., Blank, Arie F., Lima, Rafaely N., Alves, Péricles B., Bacci, Leandro
Format: Journal Article
Language:English
Published: Netherlands Elsevier B.V 01-09-2013
Subjects:
Animals
Ants - drug effects
bioassays
Biological Assay
Camponotus
Camponotus melanoticus
Camponotus novogranadensis
chemical composition
Dorymyrmex
Dorymyrmex thoracicus
essential oils
Formicidae
gas chromatography
human health
insect control
Insect Repellents - chemistry
Insect Repellents - pharmacology
insecticides
Insecticides - chemistry
Insecticides - pharmacology
insects
Lamiaceae - chemistry
lethal dose 50
mass spectrometry
mortality
Oils, Volatile - chemistry
Oils, Volatile - pharmacology
Patchouli
Pest
plant fats and oils
Plant Oils - chemistry
Plant Oils - pharmacology
Pogostemon cablin
Time Factors
tropics
Neotropical Region
Camponotus novogranadensis
Dorymyrmex thoracicus
Pest
Camponotus melanoticus
Patchouli
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Summary:This study reveals the insecticidal and repellence activity of patchouli essential oil (Pogostemon cablin) against three species of urban ants potentially vectors of pathogens. •Species of urban ants can cause damage to human health.•Insecticidal and repellence activity of this essential oil was tested on three species of urban ants.•Essential oil of P. cablin may be promising for the control of urban ants. Ants are highly abundant in neotropical regions, with certain species adapted to the urban environment, where they can cause damage to human health. The main method for controlling ants consists of using organosynthetic insecticides, which are potentially toxic to the environment. Essential plant oils are considered a viable alternative to the use of conventional insecticides. In this study, we analyze the bioinsecticidal activity and repellence of patchouli essential oil (Pogostemon cablin) against three species of urban ants: Camponotus melanoticus, Camponotus novograndensis, and Dorymyrmex thoracicus. The chemical composition of the essential oil was analyzed by GC–MS and GC-FID. The major compounds were patchoulol (36.6%) followed by α-bulnesene (13.95%), and α-guaiene (11.96%). Toxicity and repellency bioassays were performed using the essential oil over the ants, and mortality evaluations were performed at 4, 24, and 48h after performing the bioassays. Mortality percentage of the ants on 7μg/mg was on average 84%. The essential oil of P. cablin displayed toxicity against all three species of urban ants, with the lowest LD50 being observed for D. thoracicus (2.02μg oil/mg insect) after 48h of exposure compared to C. melanoticus (2.34μg oil/mg insect) and C. novogranadensis (2.95μg oil/mg insect). The essential oil of P. cablin was strongly repellent to the three species of ants in all concentrations tested (0.01% and 1% v/v). Considering the potential toxicity and repellency of the P. cablin essential oil to the urban ants, future studies could investigate the practical application of this oil to control of this insects.
Bibliography:http://dx.doi.org/10.1016/j.actatropica.2013.04.011
ObjectType-Article-1
SourceType-Scholarly Journals-1
ObjectType-Feature-2
content type line 23
ISSN:0001-706X
1873-6254
DOI:10.1016/j.actatropica.2013.04.011