2026 Articles
Zhang, W., Toprak, U., Mohamed, A., Chakkalakkal, G., Al-Dhafer, H., Smagghe, G., Eleftherianos, I. 2026. RNAi-based biopesticides: Biosafety and risk assessment—an outline. Entomologia Generalis. Accepted.
Narva, K., Gordon, E., İnak, E., Smith, S., Whipple, S., Manley, B., Moreira do Nascimento, J., Zhurov, V., Singh, V., Bruinsma, K., Koç-İnak, N., Grbić, M., Toprak, U., Grbić, V. 2026. RNAi-based acaricides: On the path to commercialization of new tools for mite management in crops and hives. Insect Biochemistry and Molecular Biology 189: 104520. https://doi.org/10.1016/j.ibmb.2026.104520 Toprak, U. 2026. The hidden engines of insect life: The cellular machinery driving physiology. Current Opinion in Insect Science 75: 101486. https://doi.org/10.1016/j.cois.2026.101486Tettamanti, G., Casartelli, M., Mohamed, A., Toprak, U., Daniele, B., Ling, T. 2026. Targeting cell death processes for insect pest control: a promising but still underexploited strategy. Current Opinion in Insect Science, 74:. Musselman, L.P., Cedden, D., Güney, G., Toprak, U. 2026. Insect lipidomics: Advances, applications, and physiological insights. Eds: Toprak, U., Musselman, L., In: Advances in Experimental Medicine and Biology, 1494, pp. 261–291. Springer, Cham. https://doi.org/10.1007/5584_2025_878 Toprak, U. 2026. Lipid metabolism in relation to calcium homeostasis. Eds: Toprak, U., Musselman, L., In: Advances in Experimental Medicine and Biology,1494, pp. 217–237. Springer, Cham. https://doi.org/10.1007/5584_2025_875 Toprak, U. . Teets, N.M., Cedden, D., Guney, G. 2026. Lipid metabolism in diapause. In “Insect Lipid Metabolism”, Eds: Toprak, U., Musselman, L., In: Advances in Experimental Medicine and Biology, 1494, pp. 293–312. Springer, Cham. https://doi.org/10.1007/5584_2025_850 Toprak, U., İnak, E., Nauen, R. 2026. Lipid metabolism as a target site in pest control. Eds: Toprak, U., Musselman, L., In: Advances in Experimental Medicine and Biology, 1494, pp. 519–547. Springer, Cham. https://doi.org/10.1007/5584_2024_822
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2025 Articles
Susurluk, H., Toprak, U. 2025. Dual-mode evaluation of five essential oils for rapid knockdown and seed protection against Acanthoscelides obtectus (Coleoptera: Chrysomelidae). Journal of Asia-Pacific Entomology, 28(4) Susurluk, H., İlktan, M., Sepin, S., Hasdemir, S.G., Bütüner, A.K., Uz Yıldırım, E., Susurluk, İ.A., Toprak, U. 2025. Insecticidal effect of Photorhabdus temperata subsp. thracensis derived secondary metabolites against three stored product pests. Journal of Stored Products Research, 114: Cedden, D., Güney, G., Bayram, Ş., Baldwin, D., Coutu, C., Hegedus, D., Lipke, M.N., Groves, R.L., Doğan, C., Toprak, U. 2025. Multi-omics analysis reveals diapause-associated lipid remodeling in the fat body of Colorado Potato Beetle. BMC Biology Güney, G., Schmitt, K., Zicola, J., Toprak, U., Rostás, M., Scholten, S., Cedden, D. 2025. The microRNA pathway regulates obligatory aestivation in the cabbage stem flea beetle Psylliodes chrysocephala. Communications Biology 8: 1288. https://doi.org/10.1038/s42003-025-08721-5 Demirci, B., Söylemezoğlu, G., Van Leeuwen, T., Toprak, U., İnak, E. 2025. Monitoring and molecular mechanisms of resistance to complex III inhibitors in Tetranychus urticae populations from Türkiye. Pesticide Biochemistry and Physiology, 214: Toprak, U. 2025. RNAi comes of age: Translating insect molecular insights into field applications. Insect Molecular Biology, 34(4):Narva, K., Toprak, U ., Alyokhin, A., Groves, R., Jurat-Fuentes, J.L., Moar, W., Nauen, R., Whipple, S., Head, G. 2025. Insecticide resistance management scenarios differ for RNA-based sprays and traits. Insect Molecular Biology. 34(4):. https://doi.org/10.1111/imb.12986 Toprak, U. 2025. Recent Insights Into Insect Physiology and Biochemistry. Archives of Insect Biochemistry and Physiology 118: e70034. https://doi.org/10.1002/arch.70034Mehrvar, A., Ghanbari, S., Söylemezoğlu, G., Toprak, U. 2025. Carbon quantum dot nanoparticles enhance the efficacy of Spodoptera littoralis nucleopolyhedrovirus suspoemulsion. Archives of Insect Biochemistry and Physiology. 118e70027 . https://doi.org/10.1002/arch.70027 Mehrvar, A., Ghanbari, S., Söylemezoğlu, G., Toprak, U. 2025. A novel tank-mix formulation increases the efficacy of alphabaculoviruses on different phylloplanes. Journal of Economic Entomology, 118(1): 83–92. https://doi.org/10.1093/jee/toae282 Mortazavi, H., Ferizli, A.G., Toprak, U., Tütüncü, Ş., Emekci, M., Ormanoğlu, N. 2025. Long-term efficacy of diatomaceous earth, SilicoSec® against three major stored grain insect pests. Journal of Stored Products Research, 111: İnak, A., Demirci, B., Erdem, E., Randa-Zelyüt, F., Karanfil, A., Idan, A.Y., Toprak, U., İnak, E., Van Leeuwen, T. 2025. Insecticide resistance status and vector potential of Bemisia tabaci populations on vegetable crops in Türkiye. Crop Protection 190: 107097. https://doi.org/10.1016/j.cropro.2024.107097 Toprak, U. 2025. Yeni nesil biyoinsektisitler. In E. Bayhan, S. Ölmez Bayhan & Y. K. Haspolat (Eds.), Pestisitler (ss. 151–204). Ankara: Orient Yayınları. e-ISBN: 978-625-5976-76-5.
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2024 Articles
Cedden, D., Güney, G., Toprak, U. The integral role of de novo lipogenesis in the preparation for seasonal dormancy. Proceedings of the National Academy of Sciences of the United States of America, 121(29) Ertürk, S., Atay, T., Alkan, M., Kordali, Ş., Yılmaz, F., Ghanbari, S., Doğan, C., Toprak, U. Boron compounds are effective on Sitophilus granarius (Coleoptera: Curculionidae) and Rhyzopertha dominica (Coleoptera: Bostrichidae). Journal of Stored Products Research, Mortazavi, H., Toprak, U., Tütüncü, Ş., Ormanoğlu, N., Ferizli, A.G. 2024. Surface applications of diatomaceous earth, SilicoSec® are effective on Sitophilus granarius and Rhyzopertha dominica, but less on Tribolium confusum . Journal of Stored Products Research, Sezen, K., Güney Aydın, E., Yıldız, H.S., Yıldız, İ., Can, F., Ghanbari, S., Toprak, U. 2024. First record of the genus Haritalodes Warren, 1890 and H. derogata (Fabricius, 1775) (Lepidoptera: Crambidae: Spilomelinae) from Türkiye and its morphological and molecular identification. Zootaxa, 5447(1): 124-132.https://doi.org/10.11646/ZOOTAXA.5447.1.8 Atay, T., Ertürk, S., Alkan, M., Kordali, Ş., Yılmaz, F., Barış, A., Ghanbari, S., Doğan, C., Toprak, U. 2024. Boron compounds are effective on Tribolium castaneum (Coleoptera: Tenebrionidae): Reduced lipogenesis and induced weight loss. Archives of Insect Biochemistry and Physiology, 115:e22098. https://doi.org/10.1002/arch.22098 Erdogan, C., Toprak, U., Gurkan, M.O. 2024. Biochemical and molecular analyses of insecticide resistance in greenhouse populations of Bemisia tabaci (Hemiptera: Aleyrodidae) in Türkiye. Phytoparasitica, 52:41. https://doi.org/10.1007/s12600-024-01155-5 Güney, G., Cedden, D., Hänniger, S., Hegedus, D., Heckel, D.G., Toprak, U. 2024. Peritrophins are involved in the defense against Bacillus thuringiensis and nucleopolyhedrovirus formulations in Egyptian cotton leafworm (Spodoptera littoralis ) (Lepidoptera: Noctuidae). Insect Biochemistry and Molecular Biology
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2023 Articles
Atay, T., Alkan, M., Ertürk, S., Toprak, U. 2023. Individual and combined effects of α-pinene and a native diatomaceous earth product on control of stored product beetle pests. Journal of Asia-Pacific Entomology, 26(4):102149. doi:10.1016/j.aspen.2023.102149 İnak, E., Demirci, B., Vandenhole, M., Söylemezoğlu, G., Van Leeuwen, T., Toprak, U. 2023. Molecular mechanisms of resistance to spirodiclofen and spiromesifen in Tetranychus urticae . Crop Protection Alkan, M., Özdem, A., Yılmaz, A., Yücel, C., İnak, E., Ertürk, S., Toprak, U. 2023. Emulsion oil in water formulation of methyl-eugenol increases its insecticidal activity against the codling moth, Cydia pomonella L. (Lepidoptera: Tortricidae). Applied Entomology and Zoology
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2022 Articles
İnak, E., Alpkent, Y.N., Çobanoğlu, S., Toprak, U. , Van Leeuwen, T. 2022. Incidence of spiromesifen resistance and resistance mechanisms in Tetranychus urticae populations collected from strawberry production areas in Turkey. Crop Protection Albayrak, T., Yorulmaz Salman, S., İnak, E., Toprak, U., Van Leeuwen, T. 2022. Pirimicarb resistance and associated mechanisms in field-collected and selected populations of Neoseiulus californicus . Pesticide Biochemistry and Physiology, 180:104984. https://doi.org/10.1016/j.pestbp.2021.104984 Berber, G., Demirci, B., Toprak U., İnak, E., Yorulmaz, S. 2022. Acetamiprid resistance in the Green peach aphid Myzus persicae (Sulzer) (Hemiptera: Aphididae): Selection, cross-resistance, biochemical and molecular resistance. Gaziosmanpaşa Üniversitesi Ziraat Fakültesi Dergisi
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2021 Articles
Doğan, C., Güney, G., Güzel, K., Can, A., Hegedus, D., Toprak, U. 2021. What you eat matters: Nutrient inputs alter the metabolism and neuropeptide expression in Egyptian cotton leaf worm, Spodoptera littoralis (Lepidoptera: Noctuidae). Frontiers in Physiology, 12: 773688. https://doi.org/10.3389/fphys.2021.773688 Güney, G., Cedden, D., Hänniger, S., Heckel, D.G., Coutu, C., Hegedus, D.D., Amutkan Mutlu, D., Suludere, Z., Sezen, K., Güney, E., Toprak, U. 2021. Silencing of an ABC transporter, but not a cadherin, decreases the susceptibility of Colorado potato beetle larvae to Bacillus thuringiensis ssp. tenebrionis Cry3Aa toxin. Archives of Insect Biochemistry and Physiology, 108: Toprak, U., Doğan, C., Hegedus, D. 2021. A Comparative perspective on functionally-related, intracellular calcium channels: The insect ryanodine and inositol 1,4,5-trisphosphate receptors. Biomolecules, Toprak, U., Palanker Musselman, L. 2021. From cellular biochemistry to systems physiology: New insights into insect lipid metabolism. Insect Biochemistry and Molecular Biology Doğan, C., Hänniger, S., Heckel, D.G., Coutu, C., Hegedus, D.D., Crubaugh, L., Groves, R.L., Amutkan Mutlu, D., Suludere, Z., Bayram, Ş., Toprak, U. 2021. Characterization of calcium signaling proteins from the fat body of the Colorado Potato Beetle, Leptinotarsa decemlineata (Coleoptera: Chrysomelidae): Implications for diapause and lipid metabolism. Insect Biochemistry and Molecular Biology 133: 103549. https://doi.org/10.1016/j.ibmb.2021.103549. Güney, G., Toprak, U., Hegedus, D.D., Bayram, Ş., Coutu, C., Bekkaoui, D., Baldwin, D., Heckel, D.G., Hänniger, S., Cedden, D., Amutkan-Mutlu, D., Suludere, Z. 2021. A look into Colorado potato beetle lipid metabolism through the lens of lipid storage droplet proteins. Insect Biochemistry and Molecular Biology 133: 103473. https://doi.org/10.1016/j.ibmb.2020.103473 Doğan, C., Hänniger, S., Heckel, D.G., Coutu, C., Hegedus, D.D., Crubaugh, L., Groves, R.L., Bayram, Ş., Toprak, U. 2021. Two calcium-binding chaperones from the fat body of the Colorado potato beetle, Leptinotarsa decemlineata (Coleoptera: Chrysomelidae) involved in diapause. Archives of Insect Biochemistry and Physiology106: e21755. https://doi.org/10.1002/arch.21755
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2020 Articles
Yilmaz, T., Tutuncu, S., Toprak, U., Emekci, M., Ferizli, A.G. 2020. Insecticidal efficacy of spinetoram against Sitophilus zeamais : Influence of dose, exposure interval and temperature. Journal of Stored Products Research Ertürk, S., Atay, T., Toprak, U., Alkan, M. 2020. The efficacy of different surface applications of wettable powder formulation of Detech® diatomaceous earth against rice weevil, Sitophilus oryzae (Coleoptera: Curculionidae). Journal of Stored Products Research Mortazavi, H., Toprak, U., Emekci, M., Bağcı, F., Ferizli, A.G. 2020. Persistence of diatomaceous earth, SilicoSec® against three stored grain beetles. Journal of Stored Products Research Toprak, U. Roles of peptide hormones in insect lipid metabolism. Frontiers in Physiology Toprak, U., Hegedus, D., Doğan, C., Güney, G. 2020. A journey into the world of insect lipid metabolism. Archives of Insect Biochemistry and Physiology Ertürk, S., Toprak, U. The effect of phosphine fumigation on some stored product pests at low-temperature conditions. Harran Journal of Agricultural and Food Science,
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2019 Articles
Erlandson, M., Toprak, U., Hegedus, D.D. 2019. Role of the peritrophic matrix in insect-pathogen interactions. Journal of Insect Physiology Hegedus, D.D., Toprak, U., Erlandson, M. 2019. Peritrophic Matrix Formation. Journal of Insect Physiology Toprak, U., İnak, E., Özdemir, E. 2019. Use of molecular techniques in the studies of insecticide resistance. Proceedings of The Symposium for Phosphine Resistance in Stored Grain Pests
Toprak, U. 2019. Turkish Academy of Sciences, Scientific terms dictionary, Entomology Core Section. Ed. by Sankur, B., Ankara, Turkey.
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2018 Articles
Kaydan, M.B., Toprak, U. 2018. Molecular insights into plant protection. TarlaSera 98:
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2016 Articles
Toprak, U., Erlandson, M., Baldwin, D., Karcz, S., Wan, L., Coutu, C., Gillott, C., Hegedus, D.D. 2016. Identification of the Mamestra configurata (Lepidoptera: Noctuidae) peritrophic matrix proteins and enzymes involved in peritrophic matrix chitin metabolism. Insect Science , 23: 656-674. Hegedus, D.D., Toprak, U., and Erlandson, M. 2016. Lepidopteran peritrophic matrix composition, function, and formation. In “Short Views on Insect Genomics and Proteomics”, Vol 2, pp 63-87, Eds: Raman, C., Goldsmith, M.R., Agunbiade, T.A., Springer, Switzerland, ISBN: 978-3-319-24244-6.
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2014 Articles
Toprak, U., Hegedus, D.D., Baldwin, D., Coutu, C., Erlandson, M. 2014. Spatial and temporal synthesis of Mamestra configurata peritrophic matrix through a larval stadium. Insect Biochemistry and Molecular Biology 54: 89-97. Guz, N., Toprak, U., Dageri, A., Gurkan, M.O., Denlinger, D.L. 2014. Identification of a putative antifreeze protein gene that is highly expressed during preparation for winter in the sunn pest, Eurygaster maura. Journal of Insect Physiology , 68: 30-35. Toprak, U., Coutu, C., Baldwin, D., Erlandson, M., Hegedus, D. 2014. Development of an improved RNA interference vector system for Agrobacterium -mediated plant transformation. Turkish Journal of Biology 38: 40-47 (Turkish Journal of Biology is an international journal indexed in ISI Thompson Reuters Web of Science, Elsevier-Scopus, Science Citation Index Expanded Journal List ). Toprak, U., Guz, N., Gurkan, M.O., Hegedus, D.D. 2014. Identification and coordinated expression of perilipin genes in the biological cycle of sunn pest, Eurygaster maura (Hemiptera: Scutelleridae): Implications for lipolysis and lipogenesis. Comparative Biochemistry and Physiology Part B: Molecular Biology Part B 171: 1-11.
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2013 Articles
Toprak, U., Baldwin, D., Hegedus, D.D., Erlandson, M. 2013. Per os feeding with antisera specific to peritrophic matrix proteins stimulates larval growth in Mamestra configurata Walker (Lepidoptera: Noctuidae). Turkish Journal of Entomology 37: 203-212 (Turkish Journal of Entomology is an international journal indexed in ISI Thompson Reuters Web of Science, Elsevier-Scopus, Science Citation Index Expanded Journal List ).Toprak, U., Baldwin, D., Erlandson, M., Gillott, C., Harris, S., Hegedus, D.D. 2013. In vitro and in vivo application of RNA interference for targeting genes involved in peritrophic matrix synthesis in a lepidopteran system. Insect Science : 92-100. Susurluk, H.,Toprak, U., Gürkan, M.O. 2013. Concentration of sodium dodecyl sulphate used in the occlusion body extraction affects Spodoptera littoralis nucleopolyhedrovirus biological activity. Turkish Journal of Biology 37: 171-175 (Turkish Journal of Biology is an international journal indexed in ISI Thompson Reuters Web of Science, Elsevier-Scopus, Science Citation Index Expanded Journal List ).
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2012 Articles
Toprak, U., Harris, S., Baldwin, D., Theilmann, D.A., Gillott, C., Hegedus, D.D., Erlandson, M. 2012. Role of enhancin in Mamestra configurata nucleopolyhedrovirus virulence: Selective degradation of host peritrophic matrix proteins. Journal of General Virology 93: 744-753.
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2011 Articles
Terenius, O., Papanicolaou, A., Garbutt, J.S., Eleftherianos, I., Huvenne, H., Sriramana, K., Albrechtsen, M., An, C., Aymeric, J-L., Barthel, A., Bebas, P., Bitra, K., Bravo, A., Chevalier, F., Collinge, D.P., Crava, C.M., de Maagd, R.A., Duvic, B., Erlandson, M., Faye, I., Felföldi, G., Fujiwara, H., Futahashi, R., Gandhe, A.S., Gatehouse, H.S., Gatehouse, L.N., Giebultowicz, J., Gómez, I., Grimmelikhuijzen, C.J., Groot, A.T., Hauser, F., Heckel, D.G., Hegedus, D.D., Hrycaj, S., Huang, L., Hull, J.J., Iatrou, K., Iga, M., Kanost, M.R., Kotwica, J., Li, C., Li, J., Liu, J., Lundmark, M., Matsumoto, S., Meyering-Vos, M., Millichap, P.J., Monteiro, A., Mrinal, N., Niimi, T., Nowara, D., Ohnishi, A., Oostra, V., Ozaki, K., Papakonstantinou, M., Popadic, A., Rajam, M.V., Saenko, S., Simpson, R.M., Soberón, M., Strand, M.R., Tomita, S., Toprak, U., Wang, P., Wee, C.W., Whyard, S., Zhang, W., Nagaraju, J., ffrench-Constant, R.H., Herrero, S., Gordon, K., Swevers, L., Smagghe, G. 2011. RNA interference in Lepidoptera: an overview of successful and unsuccessful studies and implications for experimental design. Journal of Insect Physiology , 57: 231-245.
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2010 Articles
Toprak, U. , Erlandson, M., Hegedus, D. 2010. Peritrophic matrix proteins. Trends in Entomology 6: 23-51. Erlandson, M., Hegedus, D., Baldwin, D., Noakes, A., Toprak, U. 2010. Characterization of the Mamestra configurata (Lepidoptera: Noctuidae) larval midgut protease complement and adaptation to feeding on artificial diet, Brassica species and protease inhibitor. Archives of Insect Biochemistry and Physiology 75: 70-91. Toprak, U., Baldwin, D., Erlandson, M., Gillott, C., Harris, S., Hegedus, D. 2010. Expression patterns of genes encoding proteins with peritrophin A domains and protein localization in Mamestra configurata . Journal of Insect Physiology 56: 1711-1720. Toprak, U., Baldwin, D., Erlandson, M., Gillott, C., Hegedus, D. 2010. Insect intestinal mucins and serine proteases associated with the peritrophic matrix from feeding, starved and molting Mamestra configurata larvae. Insect Molecular Biology 19: 163-175.
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2009 Articles
Hegedus, D., Erlandson, M., Gillott, C., Toprak, U. 2009. New insights into peritrophic matrix synthesis, architecture, and function. Annual Review of Entomology 54: 285-302.
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2008 Articles
Toprak, U., Baldwin, D., Erlandson, M., Gillott, C., Hou, X., Coutu, C., Hegedus, D. 2008. A chitin deacetylase and putative insect intestinal lipases are components of Mamestra configurata peritrophic matrix. Insect Molecular Biology 17: 573-585.
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2007 Articles
Toprak, U., Gürkan, M.O., Bayram, Ş. 2007. Impact of a Turkish isolate and a plaque purified variant of SpliNPV-B on larval stage development of Spodoptera littoralis (Lepidoptera: Noctuidae) Boisd. Pest Management Science 63: 564-568. Toprak, U., Susurluk, H., Gürkan, M.O. 2007. Viral-enhancing activity of an optical brightener for Spodoptera littoralis (Lepidoptera: Noctuidae) nucleopolyhedrovirus. Biocontrol Science and Technology 17: 423-431.
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2006 Articles
Toprak, U., Bayram, Ş., Gürkan, M.O. 2006. Comparative biological activities of a plaque-purified variant and a Turkish native isolate of SpliNPV-B against Spodoptera littoralis (Lepidoptera: Noctuidae). Pest Management Science 62: 57-63. Susurluk, I.A., Toprak, U. 2006. Molecular identification of three entomopathogenic nematodes from Turkey by PCR-RFLP of the ITS regions. Phytoparasitica 34: 17-20.
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2005 Articles
Toprak, U., Susurluk,I.A., and Gürkan, M.O. 2005. The partial sequence comparison of lef-8 gene obtained from a Turkish SpliNPV-B with several baculoviruses. Journal of Agricultural Sciences 11: 384-390. Toprak, U., Bayram, Ş., Gürkan, M.O. 2005. Gross pathology of SpliNPVs and alterations in Spodoptera littoralis Boisd. (Lepidoptera: Noctuidae) morphology due to baculoviral infection. Journal of Agricultural Sciences 11: 65-71. Toprak, U., Bayram, Ş., Gürkan, M.O. 2005. Baculoviruses as biological control agents, do they have a future in Turkey? Çukurova University Agricultural Faculty Journal 20: 33-43.
Toprak, U., Gürkan Turkish Agriculture 163: 50-51.
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