Effect of temperature on development and reproduction of Neoseiulus barkeri (Acari: Phytoseiidae) fed on Aleuroglyphus ovatus |
| |
Authors: | Xia Bin Zou Zhiwen Li Pengxin Lin Peng |
| |
Institution: | (1) College of Life Science, Nanchang University, Nanchang, 330031, China;(2) Institute of Life Science, Nanchang University, Nanchang, 330031, China |
| |
Abstract: | The effect of five constant temperatures (16, 20, 24, 28 and 32°C) on the development, survival and reproduction of Neoseiulus
barkeri Hughes fed on Aleuroglyphus ovatus Toupeau (Acari: Acaridae) was examined in the laboratory at 85% relative humidity. Development time of different immature
stages decreased with increasing temperature, total egg-to-adult development time varied from 5.0 ± 0.13 to 17.5 ± 0.29 days.
The lower thermal threshold for development was 9.7 ± 2.48°C and the thermal constant from egg to adult was 111.1 ± 12.34
degree-days. Pre- and post-oviposition period and female longevity all shortened as temperature increased. The longest oviposition
period was observed at 24°C with 20.4 ± 1.13 days. At 20, 24, 28 and 32°C, mated females laid on average 0.7 ± 0.08, 1.5 ± 0.04,
1.6 ± 0.11 and 1.5 ± 0.11 eggs per day, respectively, but no eggs were laid at 16°C. Both the maximum fecundity (30.9 eggs
per female) and the highest intrinsic rate of increase (r
m = 0.166) were obtained at 28°C. The results of this study indicated that a mass rearing of N. barkeri with A. ovatus as prey is feasible at the appropriate temperature. |
| |
Keywords: | |
本文献已被 PubMed SpringerLink 等数据库收录! |
|