The pink stem borer, Sesamia cretica Lederer is considered as the main insect pest of maize and sugarcane worldwide. Reproductive and life table parameters of two populations of S. cretica were studied at 10 constant temperatures ranging from 12 to 36 (±1)°C, 50 ± 10% RH and a photoperiod of 0:24 (L:D) h for the larval stage and 16:8 (L:D) h for the other stages. At 12°C, no eggs hatched and at 15, 35, and 36°C only the incubation period was completed. The longest (135.81 and 156.49 d) and shortest (49.61 and 52.09 d) female life span were observed at 20 and 32°C for the Varamin and Rey populations, respectively. The highest (181.66 and 180.94 eggs/female) and lowest (13.40 and 32.85 eggs/female) total fecundity of the Varamin and Rey populations were found at 20°C and 34°C, respectively. At the same time, these two populations had the highest intrinsic rate of increase (r) (0.0343 and 0.0349 d-1) at 30 and 27°C, respectively. Similarly, both Varamin and Rey populations had the highest finite rate of increase (λ) at 27°C (1.0349 and 1.0355 d-1, respectively). It was found that the geographical populations of S. cretica were different in terms of the life table parameters at the same temperatures, and this issue can affect the results of forecasting studies. Accordingly, it is suggested that in the major corn-growing areas, a comprehensive study should be performed on different pest populations to address their commonalities and differences for future managing programs.

中文翻译：

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两个地理上孤立的芝麻（鳞翅目：夜蛾科）种群的温度依赖性人口学

粉红色螟虫 Sesamia cretica Lederer 被认为是世界范围内玉米和甘蔗的主要害虫。在 12 至 36 (±1)°C、50 ± 10% RH 和 0:24 (L:D) h 光周期的 10 个恒定温度下研究了两个 S. cretica 种群的繁殖和生命表参数。幼虫阶段和其他阶段的 16:8 (L:D) h。在 12°C 时，没有卵孵化，在 15、35 和 36°C 时，只有孵化期完成。Varamin 和 Rey 种群的最长（135.81 和 156.49 天）和最短（49.61 和 52.09 天）女性寿命分别在 20 和 32°C 时观察到。Varamin 和 Rey 种群的最高（181.66 和 180.94 个卵/雌）和最低（13.40 和 32.85 个卵/雌）的总繁殖力分别在 20°C 和 34°C 时发现。同时，这两个群体分别在 30 和 27°C 时具有最高的内在增长率 (r)（0.0343 和 0.0349 d-1）。同样，Varamin 和 Rey 种群在 27°C 时具有最高的有限增长率 (λ)（分别为 1.0349 和 1.0355 d-1）。研究发现，在相同温度下，不同地理种群在生命表参数方面存在差异，这一问题会影响预测研究的结果。因此，建议在玉米主产区，对不同的害虫种群进行综合研究，以解决它们的共性和差异，为未来的管理计划。0349 和 1.0355 d-1）。研究发现，在相同温度下，不同地理种群在生命表参数方面存在差异，这一问题会影响预测研究的结果。因此，建议在玉米主产区，对不同的害虫种群进行综合研究，以解决它们的共性和差异，为未来的管理计划。0349 和 1.0355 d-1）。研究发现，在相同温度下，不同地理种群在生命表参数方面存在差异，这一问题会影响预测研究的结果。因此，建议在玉米主产区，对不同的害虫种群进行综合研究，以解决它们的共性和差异，为未来的管理计划。