Quantitative Evaluation of the Lethal Impact of High Temperature from Summer Sunlight on the Life Stages of the Sawtoothed Grain Beetle, Oryzaephilus surinamensis L. Under the climatic conditions of the city of Kirkuk.
DOI:
https://doi.org/10.21070/nabatia.v14i1.1688Keywords:
Oryzaephilus surinamensis, Thermal Mortality, Sunlight-based Pest Control, Solar Heat Exposure, Stored-grain Insect PestAbstract
This study aimed to evaluate the lethal efficacy of high temperatures from sunlight during July and August on the larvae and adults of the sawtoothed grain beetle, Oryzaephilus surinamensis L. Insect colonies were obtained from local wheat grain stores in Kirkuk markets, containing adult individuals of this insect. They were utilized by rearing them in an incubator at 30±2°C and 70±5% relative humidity in the laboratories of the College of Education for Women, Department of Life Sciences. The resulting larvae and adults were then used to conduct the experiments of this study. Advanced-stage larvae were taken and placed in Petri dishes at a rate of ten larvae per dish. Similarly, one-week-old adults were taken and placed in Petri dishes at a rate of ten adults per dish, with three replicates for each treatment. They were then exposed to direct sunlight using three exposure periods (10:00 AM, 12:00 PM, and 2:00 PM) for durations of (15, 30, 45) minutes during July and August 2025 under the conditions of Kirkuk city.
References
[1] Rees, D. (2004). Insects of Stored Products. CSIRO Publishing.
[2] Gourgouta, M., Agrafioti, P., & Athanassiou, C. G. (2021). Insecticide resistance in stored product insects: a review. Insects, 12(5), 442.
[3] Nayak, M. K., Daglish, G. J., & Phillips, T. W. (2020). Managing resistance to chemical treatments in stored product pests. Insects, 11(4), 241.
[4] Fields, P. G. (1992). The control of stored-product insects and mites with extreme temperatures. Journal of Stored Products Research, 28(2), 89-118.
[5] Vincent C., Hallman G., Lessard F.F. (2003). Management of agricultural insects with physical control methods. Annu. Rev. Entomol. 48: 261-81.
[6] Rhida H.A. & Qader, F. A. (2015). The efficiency of different insect trap in capturing of onion maggot Delia antiqua (Diptera: Anthomyiidae). Iraqi academic scientific journals.
[7] Abdelghany, A. Y., & Awadalla, S. S. (2015). Efficacy of solar energy in controlling the sawtoothed grain beetle, Oryzaephilus surinamensis (L.) (Coleoptera: Silvanidae) in stored dates. Journal of Entomology and Zoology Studies, 3(5), 437-441.
[8] Saber, N. G., Mansor, M. Sh. & Qader, F. A. (2024). The effect of ten plant powders on lesser grain borer, Rhizopertha dominica during different storage periods. Iop conference series: Earth and environmental science. 5th international conference of modern technologies in agricultural sciences.
[9] Mahroof, R. M., & Hagstrum, D. W. (2012). Biology and behavior of the sawtoothed grain beetle, Oryzaephilus surinamensis (L.). Journal of Insect Science, 12(1), 1-12.
[10] Saber, N. G., Mansor, M. Sh. & Qader, F. A. (2024). The effect of solar heating on lesser grain borer, Rhyzopertha dominica (Fab.) (Coleoptera: Bostrichidae). 5th international conference of modern technologies in agricultural sciences. IOP conference series: Earth and environmental sciences 1371.
[11] Beckett, S. J., & Morton, R. (2003). The mortality of three species of Psocoptera at elevated temperatures. Journal of Stored Products Research, 39(3), 229-244.
[12] FAO. (1975). Recommended methods for the detection and measurement of resistance of agricultural pests to pesticides. FAO Method No. 15. FAO Plant Protection Bulletin.
[13] Finney, D. J. (1971). Probit Analysis (3rd ed.). Cambridge University Press.
[14] Mahroof, R. M., & Phillips, T. W. (2007). Responses of stored-product insects to heat. In Heat Treatments for Postharvest Pest Control: Theory and Practice (pp. 193-220). CAB International.
[15] Al-Ahmadi, M. S. (2019). Efficiency of high temperatures on the mortality of sawtoothed grain beetle, Oryzaephilus surinamensis (L.) (Coleoptera: Silvanidae). Journal of Entomology and Zoology Studies, 7(3), 1272-1276.
[16] Neven, L. G. (2000). Physiological responses of insects to heat. Postharvest Biology and Technology, 21(1), 103-111.
[17] Theodorou, P. A., & Athanassiou, C. G. (2021). Heat shock protein expression in stored product insects in response to thermal stress. Journal of Economic Entomology, 114(3), 1121-1130.
[18] Chauhan, Y. R., & Ghormade, V. P. (2018). Solar heating of stored grain for disinfestation. In Sustainable Grain Storage (pp. 85-102). Springer.
[19] Dowdy, A. K., & Fields, P. G. (2002). Heat combined with diatomaceous earth to control the confused flour beetle (Coleoptera: Tenebrionidae) in a flour mill. Journal of Stored Products Research, 38(1), 11-22.
[20] Al-hamawandy SH.A.K., Shahraban S.M. (2024). Integrated management of the oriental citrus mite Eutetranychus orientalis (Klein) (review article). Kirkuk university journal for agricultural sciences. Vol. 15 (1): 47-53.
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Copyright (c) 2026 Nagham Abdulghani Mohammed, Fadel Abbas Qader
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