Zhou Zhong-Shi, Guo Jian-Ying, Chen Hong-Song, Wan Fang-Hao
State Key Laboratory for Biology of Plant Diseases and Insect Pests, Institute of Plant Protection, Chinese Academy of Agricultural Sciences, Beijing, China.
Environ Entomol. 2010 Jun;39(3):1021-7. doi: 10.1603/EN09176.
Ophraella communa (Coleoptera: Chrysomelidae) is a leaf beetle that is unintentionally introduced in China. It is a potential biological control agent against common ragweed, Ambrosia artemisiifolia (Asterales: Asteraceae). The effects of temperature on the development and fecundity of O. communa were studied at eight constant temperature regimens (15, 20, 22, 25, 28, 30, 32, 36 degrees C) in the laboratory. The results showed that the developmental periods for egg, larva, pupa, and entire immature stages decreased in response to the increasing temperature, with the exception of 30 degrees C. The survival rates at different developmental stages were higher at 25 and 28 degrees C than at other temperatures. Ovipositional period and longevity of female shortened with the increasing temperature. The highest fecundity of female was observed to be 2,712.3 eggs/female at 28 degrees C. Life table of O. communa was constructed based on the data at 20-32 degrees C. The innate capacity for increase (r(m)), the net reproductive rate (R(0)), and the finite rate of increase (lambda) reached the maximum at 28 degrees C, with values of 0.247, 1,773.0, and 1.280, respectively. The shortest period of a generation (T) was 24.6 d at 32 degrees C, whereas the longest T value was recorded as 79.3 d at 20 degrees C. These results offer valuable insight on the establishment potential of O. communa in new environments with diverse temperature regimens and on its mass-rearing techniques in laboratory.
豚草叶甲（鞘翅目：叶甲科）是一种无意间被引入中国的叶甲。它是一种潜在的用于防治普通豚草（菊目：菊科）的生物防治剂。在实验室中，研究了8种恒温条件（15、20、22、25、28、30、32、36摄氏度）对豚草叶甲发育和繁殖力的影响。结果表明，卵、幼虫、蛹以及整个未成熟阶段的发育历期随温度升高而缩短，但30摄氏度时除外。不同发育阶段的存活率在25和28摄氏度时高于其他温度。雌虫的产卵期和寿命随温度升高而缩短。在28摄氏度时观察到雌虫的最高繁殖力为2712.3粒卵/雌虫。根据20至32摄氏度的数据构建了豚草叶甲的生命表。内禀增长率（r(m)）、净生殖率（R(0)）和周限增长率（λ）在28摄氏度时达到最大值，分别为0.247、1773.0和1.280。最短的世代周期（T）在32摄氏度时为24.6天，而最长的T值在20摄氏度时记录为79.3天。这些结果为豚草叶甲在不同温度条件的新环境中的定殖潜力及其实验室大量饲养技术提供了有价值的见解。
