Bulletin of Entomological Research (1990) 80, 353-358

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D.P. Rees and A.J. Walker (1990)
The effect of temperature and relative humidity on population growth of three Liposcelis species (Psocoptera: Liposcelidae) infesting stored products in tropical countries
Bulletin of Entomological Research 80 (3), 353-358
Abstract: The effect of a range of temperatures (15-42°C) and relative humidities (40-80%) on growth of populations of Liposcelis entomophilus (Enderlein), Liposcelis bostrychophilus Badonnel and Liposcelis paetus Pearman infesting a rice-based medium was investigated. These species are often found infesting stored cereal grains in the tropics. Both L. entomophilus and L. bostrychophilus bred most rapidly at 30°C, 70-80% r.h. Neither survived at temperatures of 36°C and above. In contrast, L. paetus bred most rapidly at 33-36 °C, 70% r.h., and was able to breed at 42°C, 80% r.h. No species survived humidities below 60%: As well as consuming mould growth, Liposcelis spp. also caused visible damage in rice grains. Implications of these findings in the understanding of pest status and geographical distribution of severe outbreaks of Liposcelis spp. are discussed.
(The abstract is excluded from the Creative Commons licence and has been copied with permission by the publisher.)
Link to article at publishers website


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


Pest and/or beneficial records:

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


Liposcelis paeta
Liposcelis bostrychophila
Liposcelis entomophila