Efficacy and Comparative Toxicity of Phytochemical Compounds Extracted
from Aromatic Perennial Trees and Herbs against Vector Borne
Culex pipiens (Diptera: Culicidae) and Hyalomma dromedarii
(Acari: Ixodidae) as Green Insecticides
Mohamed M Baz1*, Alanoud T Alfagham2,
Laila A Al-Shuraym3 and Ahlam Farag Moharam4
1Department
of Entomology, Faculty of Science, Benha University, Benha 13518,
Egypt; 2Botany and Microbiology Department, college of
Science, King Saud University, Riyadh, Saudi Arabia; 3Biology
Department, Faculty of Science, Princess Nourah Bint Abdulrahman
University, Riyadh, Saudi Arabia; 4Department of
parasitology, Faculty of medicine, Benha University, Benha 13518,
Egypt
*Corresponding author:
Mohamed.albaz@fsc.bu.edu.eg
Abstract
The control of vector-borne
diseases with pesticides is becoming a real challenge due to rapid development
of insecticide resistance. The study aimed to find out the efficacy of
phytochemical compounds found in perennial aromatic trees (Araucaria (A.)
heterophylla, Eucalyptus (E.) camaldulensis, and Pinus (P.) halepensis)
or herbs (Cyperus (C.) rotundus, Mentha (M.) arvensis, and Rosmarinus
(R.) officinalis) as natural insecticides against Culex (Cx.) pipiens
and Hyalomma (H.) dromedarii. Methanol and hexane plant leaves and resin
oils were extracted by Soxhlet extraction methods, separately. These compounds
are specialized metabolites that are synthesized in environments with high or
low pressure, depending on growing conditions and plant type. Data showed that
the aromatic perennial tree, A. heterophylla (100%MO, LC50 =
90.47 ppm), and the herb R. officinalis (100%MO, LC50 = 110.56
ppm), are having activity against Cx. pipiens, while we found that Aleppo
pine, P. halepensis (100%MO, LC50 = 1.95 mg/mL),
and the herb M. arvensis (100%MO, LC50 = 2.25 mg/mL) were
among the best essential oils against ticks, H. dromedarii, 24 hours
post-treatment. The results confirmed that the diversity of phytochemicals found
in aromatic perennial trees and herbs, such as sesquiterpene (á-ylangene,
23.26%), monoterpene (Eucalyptol, 22.15%), fatty acid (Linoleic acid, 19.54%),
sesquiterpene (α-cyperone, 21.12%), phenol (Menthyl acetate, 15.14%), flavonoids
(Bornyl acetate, 8.18%), and other active biological phytochemical compounds.
The current findings indicated that aromatic pine trees essential oils, methanol
extract in general, and hexane extract were the best at controlling pests and
distinctive in containing phytochemicals.
To Cite This Article:
Baz MM, Alfagham AT, Al-Shuraym LA and Moharam
AF, 2024. Efficacy and comparative toxicity of phytochemical
compounds extracted from aromatic perennial trees and herbs against vector borne
Culex pipiens (Diptera: Culicidae) and Hyalomma dromedarii (Acari:
Ixodidae) as green insecticides.
Pak Vet J, 44(1): 55-62. http://dx.doi.org/10.29261/pakvetj/2024.144