Latest Cover

Online Office

Contact Us

Issue:ISSN 2095-1353
           CN 11-6020/Q
Director:Chinese Academy of Sciences
Sponsored by:Chinese Society of Entomological;institute of zoology, chinese academy of sciences;
Address:Chaoyang District No. 1 Beichen West Road, No. 5 hospital,Beijing City,100101, China
Your Position :Home->Past Journals Catalog->2021年58 No.4

Influence of environmental temperature and adult body size on the mortality and fecundity of Dastarcus helophoroides
Author of the article:QIU Lan-Fen ZHONG Li SHAO Jin-Li CHE Shao-Chen LI Guang WANG Jian-Hong WEI Jian-Rong
Author's Workplace:Beijing Institute of Landscape Architecture, Beijing Key Laboratory of Ecological Function Assessment and Regulation Technology of Green Space, Beijing 100102, China; College of Life Science, Hebei University, Baoding 071002, China
Key Words:Dastarcus helophoroides; mortality rate; fecundity; body size; natural enemy insect
[Objectives]  Dastarcus helophoroides is an important insect predator of wood borers, especially cerambycids. This paper tests the influence of adult body size on the mortality rate and fecundity of adult D. helophoroides in order to improve the mass husbandry of this species. [Methods]  D. helophoroides adults were divided into three groups according to body size; small, medium and large and the survival rates and fecundities of these groups were recorded at 20, 24 and 28 ℃, respectively. [Results]  Mortality increased with temperature for adults in the same body size group. Mortality rates did not differ significantly among the three groups at 24 ℃ and 28 ℃, but did at 20 ℃, at which temperature mortality was significantly higher in the small group. Temperature had a significant effect on fecundity in the medium group; fecundity was higher at 24 ℃ and 28 ℃ than that at 20 ℃. Fecundity varied significantly with body size; at the same temperature, the large group had the highest fecundity. [Conclusion]  Body size did not significantly affect the mortality of D. helophoroides adults but did affect fecundity.
CopyRight©2021 Chinese Journal of Aplied Entomology