In this study, the chemical composition, repellent, and oviposition deterrent effects of five plant essential oils (EOs) extracted from
Lantana camara (Verbenaceae),
Schinus terebinthifolia (Anacardiaceae),
Callistemon viminalis (Myrtaceae),
Helichrysum odoratissimum (Asteraceae), and
Hyptis suaveolens (Lamiaceae) were evaluated against
Aedes aegypti,
Anopheles gambiae
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In this study, the chemical composition, repellent, and oviposition deterrent effects of five plant essential oils (EOs) extracted from
Lantana camara (Verbenaceae),
Schinus terebinthifolia (Anacardiaceae),
Callistemon viminalis (Myrtaceae),
Helichrysum odoratissimum (Asteraceae), and
Hyptis suaveolens (Lamiaceae) were evaluated against
Aedes aegypti,
Anopheles gambiae, and
Culex quinquefasciatus. When tested at 33.3 µg/cm
2,
L. camara,
S. terebinthifolia,
C. viminalis, and
H. odoratissimum were effective repellents against
Ae. aegypti (89%, 91%, 90%, and 51% repellency, respectively), but they were less repellent against
An. gambiae (66%, 86%, 59%, and 49% repellency, respectively). Interestingly,
L. camara,
S. terebinthifolia,
C. viminalis, and
H. odoratissimum exhibited 100% repellency against
Cx. quinquefasciatus at 33.3 μg/cm
2. In time-span bioassays performed at 333 μg/cm
2, the EO of
L. camara exhibited 100% repellence against
Ae. aegypti and
An. gambiae for up to 15 min and against
Cx. quinquefasciatus for 75 min. The oviposition bioassays revealed that
L. camara exhibited the highest activity, showing 85%, 59%, and 89% oviposition deterrence against
Ae. aegypti,
An. gambiae, and
Cx. quinquefasciatus, respectively. The major compounds of
L. camara,
S. terebinthifolia, and
C. viminalis were
trans-β-caryophyllene (16.7%), α-pinene (15.5%), and 1,8-cineole (38.1%), respectively. In conclusion, the
L. camara and
S. terebinthifolia EOs have the potential to be natural mosquito repellents.
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