Larval survival and feeding by immature Metaseiulus occidentalis, Neoseiulus fallacis, Amblyseius andersoni and Typhlodromus pyri on life stage groups of Tetranychus urticae Koch and phytoseiid larvae

1993 ◽  
Vol 17 (9) ◽  
pp. 685-693 ◽  
Author(s):  
B. A. Croft ◽  
M. B. Croft
Keyword(s):  
Tetranychus Urticae ◽  
Life Stage ◽  
Larval Survival ◽  
Typhlodromus Pyri ◽  
Amblyseius Andersoni ◽  
Neoseiulus Fallacis ◽  
Metaseiulus Occidentalis ◽  
Tetranychus Urticae Koch

scholarly journals Effects of temperature on a Chinese population of Amblyseius andersoni (Acari: Phytoseiidae) fed with Tetranychus urticae

Acarologia ◽  
2019 ◽  
Vol 59 (4) ◽  
pp. 475-483
Author(s):  
Yu-Jing Li ◽  
Qing-Yan Liu ◽  
Jing Chang ◽  
Yong-Hong Jia ◽  
Rui-Xia Meng
Keyword(s):  
Tetranychus Urticae ◽  
Intrinsic Rate ◽  
Intrinsic Rate Of Increase ◽  
Reproduction Rate ◽  
Amblyseius Andersoni ◽  
Rate Of Increase ◽  
Different Temperatures ◽  
Effects Of Temperature ◽  
Tetranychus Urticae Koch ◽  
Net Reproduction

The development and fecundity of Amblyseius andersoni (Chant) fed with Tetranychus urticae Koch was studied at five different temperatures (17, 20, 25, 30 and 35 °C) and life parameters of the population were calculated. The development, reproduction, longevity, and life table parameters of A. andersoni were significantly affected by the different temperatures. The duration of the egg, larval, protonymph, deutonymph and total immature stages were reduced when the temperature increased. The total oviposition of A. andersoni was highest at 25 °C and lowest at 35 °C, and the daily average oviposition increased as the temperature increased, but few eggs were laid at 17 °C. The values of the intrinsic rate of increase (rm, 0.108--0.200), net reproduction rate (R0, 18.71--36.47) and the mean generation time (T, 14.68--29.73) significantly differed among the five temperatures. The highest net reproduction rate (R0 = 36.47) was obtained at 25 °C. The results of this study indicated that A. andersoni has a high inherent potential for the control of the T. urticae at certain temperatures.

Sign in / Sign up

Export Citation Format

Share Document