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eISSN: 2083-5906
ISSN: 1230-1485
ISSN: 1230-1485
ORIGINAL RESEARCH
Effect of Plant Oils against the Main
Insect Pest of Stored Products, Sitophilus
Oryzae, in Wheat Grains
1
Department of Chemistry, College of Science, King Faisal University, Al-Ahsa 31982, Saudi Arabia
2
Department of Stored Products, Plant Protection Research Institute, Agricultural Research Center, Egypt
3
Department of Biology, Faculty of Science, Umm Al-Qura University, Makkah, Saudi Arabia
4
Department of Biology, College of Science, Jouf University, Sakaka 72341, Aljouf, Saudi Arabia
5
Department of Biology, University College of Tayma, University of Tabuk, Tabuk 47512, Saudi Arabia
6
Department of Pesticides Chemistry and Toxicology, Faculty of Agriculture, Kaferelsheikh University, Egypt
7
Department of Stored Grain and Product Pests Research, Plant Protection Research Institute, Agricultural Research
Center, Giza, Egypt
8
EPCRS Excellence Center, Plant Pathology and Biotechnology Laboratory, Agricultural Botany Department, Faculty of
Agriculture, Kafrelsheikh University, 33516, Egypt
Submission date: 2026-02-08
Final revision date: 2026-03-10
Acceptance date: 2026-03-27
Online publication date: 2026-07-30
Corresponding author
Khaled Abdelaal
EPCRS Excellence Center, Plant Pathology and Biotechnology Laboratory, Agricultural Botany Department, Faculty of Agriculture, Kafrelsheikh University, 33516, Egypt
EPCRS Excellence Center, Plant Pathology and Biotechnology Laboratory, Agricultural Botany Department, Faculty of Agriculture, Kafrelsheikh University, 33516, Egypt
KEYWORDS
TOPICS
ABSTRACT
Laboratory experiments were carried out to evaluate the three tested plant oils, neem (Azadirachta indica),
moringa (Moringa oleifera), and clove (Syzygium aromaticum) against Sitophilus oryzae adults, to prevent
or minimize the infestation of wheat grains by this insect. To achieve this aim, the current study examined
the contact and fumigant toxicity of the oils, their effects on emerged adults, the percentage reduction, and
their impact on weight loss. Further studies were conducted to investigate the side effects of these oils on
the quality parameters of wheat grains by determining the percentages of carbohydrates, protein, fat, fiber,
and ash. The results showed that the tested oils had marked effects on the parameters of toxicity, progeny,
and weight loss. Additionally, the increase in concentration and exposure period led to an increase in the
effects of these plant oils. Furthermore, the responses of insect adults to the tested oils were varied. The
side effects of the tested oils on some quality parameters of wheat grains showed slight differences relative
to those of the control. The current study suggests using the tested oils in an integrated pest management
program for stored-product insects, especially S. oryzae adults.
CONFLICT OF INTEREST
The authors declare that they have no known competing financial interests or personal relationships that could have appeared to influence the work reported in this paper.
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| eISSN: | 2083-5906 |
| ISSN: | 1230-1485 |
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