Tang, C., Huang, D.C., Tong, X.L., & Huang, Z. 2001 [Effect of alternate temperatures on the experimental population of Oracella acuta.]. Journal of South China Agricultural University 22(1): 46-48.

Notes: The development, survival and reproduction of the overwintering females and eggs of O. acuta were studied under nine different alternate temperature treatments. The results indicated that survival rate decreases as the alternate temperature increases. Similar trend was observed with the number of eggs per female, but the effect of temperature on this parameter was less than the effect on survival rate. The females were not able to survive for long periods at high temperatures (35-29°C). The alternate temperature 27-21°C was considered as the best temperature based on the development and survival rate of adults, while the alternate temperature 29-23°C was considered as the best temperature based on the development and survival rate of eggs. Altering the low temperature range below the alternate temperature 29-23°C slowed down the development of O. acuta eggs, but altering the high temperature range above the alternate temperature 29-23°C accelerated the development of O. acuta eggs.