Journal of Economic Entomology (1998) 91, 1208-1212

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M.K. Nayak, P.J. Collins and S.R. Reid (1998)
Efficacy of grain protectants and phosphine against Liposcelis bostrychophila, L. entomophila, and L. paeta (Psocoptera : Liposcelidae)
Journal of Economic Entomology 91 (5), 1208-1212
Abstract: The effectiveness of 8 grain protectants and the fumigant phosphine was tested against Liposcelis bostrychophila Badonnel, L. entomophila (Enderlein), and L. paeta Pearman: These species are common pests in Asia and have become important pests in the Australian grain-handling system. L. entomophila and L. paeta were tolerant to all protectants tested, whereas only organophosphates were effective against L. bostrychophila. Phosphine was highly effective against all 3 species. A survey of field populations of L. entomophila and L. bostrychophila suggested that the tolerance to protectant insecticides was a natural phenomenon and not due to resistance. We conclude that of these chemical tactics only phosphine has a place in the management of psocids in general. Organophosphorous grain protectants could be used where L. bostrychophila is prevalent.
(The abstract is excluded from the Creative Commons licence and has been copied with permission by the publisher.)
Database assignments for author(s): Manoj K. Nayak, Patrick J. Collins

Research topic(s) for pests/diseases/weeds:
control - general
pesticide resistance of pest


Pest and/or beneficial records:

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


Liposcelis paeta Stored grain
Liposcelis bostrychophila Stored grain
Liposcelis entomophila Stored grain