University of Tehran Iranian Journal of Plant Protection Science 2008-4781 53 2 2023 01 21 Thermal biology Carob moth, Ectomyelois ceratoniae Zeller (Lep.: Pyralidae) Based on Degree-Day and Ikemoto-Takai linear models Thermal biology Carob moth, Ectomyelois ceratoniae Zeller (Lep.: Pyralidae) Based on Degree-Day and Ikemoto-Takai linear models 225 238 90861 10.22059/ijpps.2022.346072.1007009 FA Soltan Ravan Associate Professorse of Plant Protection, Department of Plant Protection, Faculty of Agriculture, University of Zabol, Zabol, Iran. Kabir Eyidozehi PHD Student, Department of Plant Protection, University of Zabol, Zabol, Iran. Mahmoud Soufbaf Plant Protection Department-Nuclear Agriculture Research School- NSTRI- Karaj- Iran Abbas Khani Associate Professorse of Plant Protection, Department of Plant Protection, Faculty of Agriculture, University of Zabol, Zabol, Iran. Journal Article 2022 07 28 Carob moth, Ectomyelois ceratoniae Zeller (Lep.: Pyralidae) is an economic pest, polyphagous, and globally distributed that attacks many crops throughout field and storage times. Developmental time of incubation period, larval period, pupal period, and overall immature stages of the carob moth were recorded in temperatures ranging from 10 to 35 °C under laboratory conditions. According to results outputs, temperature affected significantly developmental time of the carob moth at 1% significance level and increasing temperature lead to decreasing developmental time. Degree-Day and Ikemoto-Takai linear models were used to describe temperature-dependent development of the carob moth in this research. Although both of the linear models had shown an acceptable fitting to the experimental data, due to better statistical criteria, estimation of the Ikemoto-Takai linear model was considered as thermal indices of the pest. Estimated values for thermal requirement of incubation period, total larval period, pupal period and overall immature stages of the carob moth were 46.19, 577.73, 167.44 and 831.00 degree-days, respectively. Moreover, the values of the lower temperature threshold for the mentioned developmental stages were 11.29, 4.29, 4.55 and 4.83°C, respectively, using Ikemoto-Takai linear model. Carob moth, Ectomyelois ceratoniae Zeller (Lep.: Pyralidae) is an economic pest, polyphagous, and globally distributed that attacks many crops throughout field and storage times. Developmental time of incubation period, larval period, pupal period, and overall immature stages of the carob moth were recorded in temperatures ranging from 10 to 35 °C under laboratory conditions. According to results outputs, temperature affected significantly developmental time of the carob moth at 1% significance level and increasing temperature lead to decreasing developmental time. Degree-Day and Ikemoto-Takai linear models were used to describe temperature-dependent development of the carob moth in this research. Although both of the linear models had shown an acceptable fitting to the experimental data, due to better statistical criteria, estimation of the Ikemoto-Takai linear model was considered as thermal indices of the pest. Estimated values for thermal requirement of incubation period, total larval period, pupal period and overall immature stages of the carob moth were 46.19, 577.73, 167.44 and 831.00 degree-days, respectively. Moreover, the values of the lower temperature threshold for the mentioned developmental stages were 11.29, 4.29, 4.55 and 4.83°C, respectively, using Ikemoto-Takai linear model. https://ijpps.ut.ac.ir/article_90861_559ab49e825acd3535b85fb620ed91bf.pdf