In vitro Evaluation of Acaricidal Efficacy of Selected
Essential Oils against Dermanyssus gallinae
Radomir Ratajac1†,
Aleksandar Pavlićević4†, Jelena Petrović1,
Igor Stojanov1, Dejan Orčić2, Filip Štrbac3*
and Nataša Simin2
1Department
of Drug Analysis and Veterinary Toxicology, Scientific Veterinary
Institute “Novi Sad” Novi Sad, Serbia; 2Department of
Chemistry, Biochemistry and Environmental Protection, Faculty of
Sciences, University of Novi Sad, Novi Sad, Serbia; 3Institute
for Multidisciplinary Research, University of Belgrade, Belgrade,
Serbia; 4“Aves mit" d.o.o., Bajmok – Subotica, Serbia
†These
authors share the first authorship
*Corresponding author:
filip.strbac@imsi.bg.ac.rs
Abstract
Intensification of poultry production has been
associated with an increase in parasite prevalence and adaptation of an invasive
external parasitic species, such as the poultry red mite (Dermanyssus
gallinae). The studies of biological efficacy (contact and fumigant) and
level of toxicity to mites indicated that the external application of essential
oils (EOs) can be an alternative to acaricides. In this study, the results of
acaricidal efficacy of eight selected EOs -
Lavandula angustifolia Mill.,
Laurus nobilus L.,
Mentha x piperita L.,
Mentha spicata L.,
Ocimum basilicum L., Salvia
officinalis L., Satureja montana
L. and Thymus vulgaris L. are
presented. Their chemical profiles were analyzed by gas chromatography coupled
with mass spectrometry (GC–MS). The acaricidal efficacy of EOs (6%
concentration) was tested on adult mites over 10 days in laboratory conditions
using the Petri-dish method, through direct exposure for 1 min (contact
toxicity) and subsequent exposure for 1 h (residual toxicity). The most
effective EO in direct exposure-contact, after 48 h of observation, was
S. montana (100% toxicity), while the
greatest residual effect was observed in
T. vulgaris (11% toxicity). The obtained results showed high efficacy of the
EOs against the mites through direct contact and thus their great acaricidal
potential. However, the activity was lost with subsequent exposure, indicating
the absence of prolonged effect. Possible ways to overcome this problem are
discussed further in this paper. In any case, the present study confirmed the
acaricidal potential of herbal medicines that can be used in the integrated
control of poultry red mite.
To Cite This Article:
Ratajac R, Pavlićević A, Petrović J, Stojanov I,
Orčić D, Štrbac F and Simin N, 2023. In vitro evaluation of acaricidal efficacy
of selected essential oils against dermanyssus gallinae. Pak Vet J, 44(1): 93-98. http://dx.doi.org/10.29261/pakvetj/2023.123