@article {40168,
	title = {Pyrethroid synergism by piperonyl butoxide in Bovicola ovis (Schrank) (Phthiraptera, Trichodectidae)},
	journal = {Journal of the Australian Entomological Society},
	volume = {33},
	year = {1994},
	month = {1994},
	pages = {123 - 126},
	abstract = {Piperonyl butoxide (PBO) synergised the synthetic pyrethroids (SPs) cypermethrin, deltamethrin, cyhalothrin and alpha- cypermethrin in a concentration-dependent manner in susceptible and both low- and high- SP-resistant strains of the sheep body louse Bovicola ovis. Synergism ratios as high as 23 x were recorded when 200 mg/L PBO was mixed with deltamethrin in bioassays with the highly resistant Hartley strain. High PBO synergism implicates mono-oxygenase detoxification of SPs as a major cause of SP resistance in B. ovis. The possibility of mixing PBO with existing SP lousicide products to control pyrethroid resistant lice is discussed.},
	keywords = {Australia, body, Damalinia ovis, Diptera, flies, Helicoverpa, insecticide, lepidoptera, louse, metabolism, Pyrethrum, sheep, toxicity},
	author = {Levot,G. W.}
}
