Thermal requirements of Aprostocetus hagenowii (Ratzeburg, 1852) (Hymenoptera, Eulophidae) reared in oothecae of Periplaneta americana Linnaeus, 1758 (Blattaria, Blattidae)

Biotemas

Jucelio Peter Duarte¹  Marcial Corrêa Cárcamo¹  Paulo Bretanha Ribeiro¹  Élvia Elena Silveira Vianna¹  Rodrigo Ferreira Krüger¹  Francielly Felchicher¹ 

[1] Universidade Federal de Pelotas

关键词: Biological control;    Oothecae parasitoid;    Temperature;   

DOI  :  

学科分类：生物科学（综合）

来源: Universidade Federal de Santa Catarina * Centro de Ciencias Biologicas

【 摘 要 】

http://dx.doi.org/10.5007/2175-7925.2013v26n2p271 This study aimed to determine the thermal requirements ofAprostocetus hagenowii i n oothecae ofPeriplaneta americana , as well as the influence of different temperatures on the biology of this parasitoid. Oothecae with maximum age of eight days and weight ranging from 0.09 to 0.10 g were individualized in Petri plates with a couple ofA. hagenowii , being exposed to parasitism. Parasitoids and oothecae stayed together for 24 h at 25°C; after this period, the couples were removed and the Petri plates containing oothecae were transferred to chambers at the temperatures of 15, 20, 25, 27, 30, and 35°C. Thirty replicates were conducted for each temperature. The cycle length (egg-adult) ofA. hagenowiipresented an inverse tendency to the temperature. The highest viability of emergence of this parasitoid (70%) found in this study was at the temperature of 25°C and the lowest viability (50%) occurred at 30°C. At the temperature extremes tested (15 and 35°C) no emergence of parasitoids was observed. Bt was 11.47ºC and K was 613.5 degrees-day. The results obtained provide basic information to plan the rearing ofA. hagenowiiin laboratory, and they also present traces on the population dynamics of this parasitoid in the environment.

【 授权许可】

Unknown