Journal
JOURNAL OF ECONOMIC ENTOMOLOGY
Volume 93, Issue 4, Pages 1357-1363Publisher
OXFORD UNIV PRESS INC
DOI: 10.1603/0022-0493-93.4.1357
Keywords
Liposcelis bostrychophila; Liposcelis entomophila; Liposcelis paeta; Psocoptera; organophosphate insecticide; residual efficacy
Categories
Ask authors/readers for more resources
Four organophosphate insecticides, azamethiphos, fenitrothion, chlorpyrifos-methyl, and pirimiphos-methyl, were tested as surface treatments on concrete (porous surface) and galvanized steel (nonporous surface) panels (0.3 Ly 0.3 m) against adults of three Liposcelid psocid spp.--Liposcelis bostrychophila Badonnel, Liposcelis entomophila (Enderlein), and Liposcelis pacta Pearman. Residual efficacy of these chemicals was assessed at 30 +/- 1 degrees C, 70 +/- 2% RH, and a photoperiod of 12:12 (L:D) h from 1 d after treatment (0 wk) and thereafter at reeks 1, 2, 4, 6, and 8, and then every 4 wk up to reek 40. Mortality was recorded at exposure periods of 6 h and then every 24 h until end-point was achieved. L. bostrychophila was the most susceptible species to the organophosphates tested, followed by L. pacta and L. entomophila. We conclude that for long-term protection, azamethiphos is the preferred organophosphate against L. bostrychophila (up to 36 uk on steel and 24 wk on concrete storage sm faces) and L. pacta infestations only on steel surface (up to 28 wk). None of the four organophosphates tested, however, would provide long-term protection against L. pacta on concrete surface and against L. entomophila infestations on either concrete or steel storage surfaces.
Authors
I am an author on this paper
Click your name to claim this paper and add it to your profile.
Reviews
Recommended
No Data Available