International Journal of Pest Management (2001) 47, 55-62

Jin-Jun Wang, James H. Tsai, Zhi-Mo Zhao and Lung-Shu Li (2001)
Interactive effects of temperature and controlled atmosphere at biologically relevant levels on development and reproduction of the psocid, Liposcelis bostrychophila Badonnel (Psocoptera: Liposcelididae)
International Journal of Pest Management 47 (1), 55-62
Abstract: The interactive effects on the development, survivorship and reproduction of Liposcelis bostrychophila Badonnel, of two biologically relevant controlled atmosphere (CA) environments 10% CO₂ + 5% O₂, and 12%CO₂ + 9% O₂, were determined at eight constant temperatures (17.5, 20, 22.5, 25, 27.5, 30, 32.5 and 35°C) in the laboratory. The life cycle parameters measured under nonmodified atmosphere conditions served as a control. A population reared at 17.5°C failed either to develop or to reproduce regardless of atmospheric conditions, whereas populations reared under combined conditions successfully completed their life cycles. However, development, survivorship, and reproduction were all inhibited by hypoxia and hypercarbia compared with the control atmosphere. Egg development was more sensitive to 12% CO₂ than to 10% CO₂ exposure. Nymphal development, survivorship, and reproduction were more sensitive to 5% O₂ (10% CO₂) than 9% O₂ (12% CO₂). Sensitivity was evident at higher temperatures. The first and second nymphal instars were the most sensitive life stages to CA exposure. We conclude that 10-12% CO₂ and 5-9% O₂ atmospheres found in sealed storage containers as the result of respiration of the grain, insect and related organisms, would not be effective in the control of L. bostrychophila.
(The abstract is excluded from the Creative Commons licence and has been copied with permission by the publisher.)
Link to article at publishers website
Database assignments for author(s): Jin-Jun Wang, James H. Tsai

Research topic(s) for pests/diseases/weeds:
control - general
environment - cropping system/rotation

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Pest and/or beneficial records:

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