Effects of temperature on the development and reproduction of Serangiella sababensis Sasaji (Coleoptera: Coccinellidae)
Author of the article:YANG Guo-Run ZHAO Dong-Mei LIANG Jian-Feng GUAN Yue-Shan YANG Yi-Han WANG Xing-Min
Author's Workplace:Key Laboratory of Bio-Pesticide Innovation and Application of Guangdong Province, Engineering Research Center of Biological Control of Agricultural Pests of Guangdong Province, Department of Entomology, College of Plant Protection, South China Agricultural University, Guangzhou 510642, China; Shandong (Linyi) of Modern Agriculture, Zhejiang University, Linyi 276034, China; Maoming Branch, Guangdong Laboratory for Lingnan Modern Agriculture, Maoming 525099, China
Key Words:Serangiella sababensis; temperature; developmental duration; fecundity; life table; Bemisia tabaci
Abstract:
[Objectives] To determine the effects of different temperatures on the development
and reproduction of Serangiella sababensis, so as to provide information to guide the use of this species as a
biological control for Bemisia tabaci. [Methods] The
survival rate and developmental duration of S. sababensis were measured at constant temperatures of 17, 20, 25,
30 and 32 ℃, and the development threshold temperature, effective
accumulated temperature and life table parameters were calculated. [Results] The
survival rate 80.78%±6.42% and preadult fecundity (284.00±59.71) eggs were
highest at 25 ℃. The developmental duration from egg to adult was longest at 17 ℃ (57.06±1.28) d and shortest at 30 ℃ (13.85±0.12) d. The
developmental threshold temperature and effective accumulated temperature in
the preadult stage were(11.29±1.86) ℃ and (271.40±34.44) degree·days, respectively. The net reproductive rate
(R0) was highest at 25 ℃, and the intrinsic rate of increase (rm) was highest at 30 ℃. [Conclusion] 25-30 ℃ is a suitable temperature range for raising S. sababensis. Because this is similar to the preferred temperature
range for B. tabaci, S. sababensis has high potential as a biological control during B. tabaci outbreaks.