Cereal Research Centre, Agriculture & Agri-Food Canada, 195 Dafoe Rd., Winnipeg, MB, R3T 2M9, Canada.
J Econ Entomol. 2010 Oct;103(5):1909-14. doi: 10.1603/ec10054.
The drugstore beetle, Stegobium paniceum (L.) (Coleoptera: Anobiidae), is a pest of stored medicinal and aromatic plants. Generally, mortality of each stage increased with an increase of temperature and exposure time. Heat tolerance for different stages from highest to lowest was young larvae, old larvae, eggs, adult, and pupae. The mortality after 7 h at 42 degrees C for young larvae, old larvae, eggs, adults, and pupae, respectively, was 16 +/- 5, 31 +/- 6, 48 +/- 3, 63 +/- 8, and 86 +/- 2% (mean +/- SEM). Similar trends for stage specific mortality were seen with the lethal time for 90% mortality (LT90) at 42 degrees C; 773, 144, 12, and 11 h for old larvae, eggs, adults, and pupa respectively. Mortality was too low with young larvae to estimate LT90. The LT90 for young larvae at 42, 45, 50, 55, and 60 degrees C was 25, 20, 3.9, 0.18, and 0.08 h, respectively. The cold tolerance of different stages at 0 degree C from highest to lowest was adults, old larvae, young larvae, pupae, and eggs. The LT90 at 0 degrees C was 298, 153, 151, 89, and 53 h, respectively. The LT90 for adults at 5, -5, -10, and -15 degrees C was 792, 58, 2, and 0.8 h, respectively. The supercooling point of adults was -15.2 +/- 2 degrees C; young larvae, -9.0 +/- 0.8 degrees C; old larvae, -6.5 +/- 0.5 degrees C; and pupae, -4.0 +/- 1.4 degrees C. Heat treatments that control young larvae should control all other stages of S. paniceum. Cold treatments that control adults should control all other stages of S. paniceum. Dried plants stored at 5 degrees C for 45 d or 42 degrees C for 30 h and then kept below 18 degrees C throughout the rest of the year, should remain pest-free without any chemical control.
药谷盗，扁谷盗（鞘翅目：扁甲科），是一种储存在药用和芳香植物的害虫。通常，每个阶段的死亡率随着温度和暴露时间的增加而增加。不同阶段的耐热性从高到低依次为幼幼虫、老幼虫、卵、成虫和蛹。在 42°C 下分别经过 7 小时后，幼幼虫、老幼虫、卵、成虫和蛹的死亡率分别为 16 +/- 5、31 +/- 6、48 +/- 3、63 +/- 8 和 86 +/- 2%（平均值 +/- SEM）。在 42°C 下，90%致死时间（LT90）的致死时间也呈现出类似的趋势；老幼虫、卵、成虫和蛹分别为 773、144、12 和 11 小时。幼幼虫的死亡率太低，无法估计 LT90。在 42、45、50、55 和 60°C 下，幼幼虫的 LT90 分别为 25、20、3.9、0.18 和 0.08 小时。在 0°C 下，不同阶段的耐寒性从高到低依次为成虫、老幼虫、幼幼虫、蛹和卵。在 0°C 下，LT90 分别为 298、153、151、89 和 53 小时。在 5、-5、-10 和-15°C 下，成虫的 LT90 分别为 792、58、2 和 0.8 小时。成虫的过冷点为-15.2 +/- 2°C；幼幼虫为-9.0 +/- 0.8°C；老幼虫为-6.5 +/- 0.5°C；蛹为-4.0 +/- 1.4°C。能控制幼幼虫的热处理应该能控制扁谷盗的所有其他阶段。能控制成虫的冷处理应该能控制扁谷盗的所有其他阶段。在 5°C 下储存 45 天或在 42°C 下储存 30 小时，然后在一年中的其余时间保持在 18°C 以下，植物应保持无虫害，无需任何化学控制。
