Acta Entomologica Sinica (1999) 42, 277-283

Jinjun Wang, Zhimo Zhao and Lungshu Li (1999)
[An ecological study on the laboratory population of psocid, Liposcelis bostrychophila Badonnel (Psocoptera : Liposcelididae)]
Acta Entomologica Sinica 42 (3), 277-283
Abstract: An ecological study on the laboratory population of psocid, Liposcelis bostrychophila B. , was carried out on a diet composed of whole wheat flour, yeast and skimmed milk powder (10: 1 : 1) at 8 levels of temperatures ranging from 17.5°C to 35°C, as well as 5 humidities ranging from 50 to 90% RH. The parameters for development, survival and fecundity of the psocid laboratory population were obtained by means of statistics analysis in various rearing experiments. The results showed that the temperature lower than 20°C and relative humidity less than 60% RH had adverse influence on survival. Within the range of 20~35°C, the mean development period of a generation was 59.8~19.1 days, the theoretical developmental threshold and the total effective temperature were 13.45°C and 414.05 day-degree. The average numbers of eggs laid per female was 51.9~74.7. The highest generation survival rate was recorded at 27.5°C , while the lowest at 20 °C . Within the range of 60%~90 % RH, the shortest developmental duration at different stages was at 90% RH, while the highest survival rate and fecundity were observed at 80 % RH. Consequently, the optimum temperature and relative humidity for its growth and reproduction were 27.5~30°C and 80%RH. Finally, theoretical models for developmental speed, survival rate and fecundity were suggested.
(The abstract is excluded from the Creative Commons licence and has been copied with permission by the publisher.)
(original language: Chinese)
Database assignments for author(s): Jin-Jun Wang

Research topic(s) for pests/diseases/weeds:
general biology - morphology - evolution
rearing/culturing/mass production

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Pest and/or beneficial records:

Beneficial	Pest/Disease/Weed	Crop/Product	Country	Quarant.
	Liposcelis bostrychophila