Abstract
Extract At the Wallaceville Animal Research Centre, Thomas ( 1958 Thomas, P. L. 1958. The control of lice (Damalinia ovis) and keds (Melophagus ovinus) — a comparison of the efficiency of common insecticides. N.Z. Jl agric. Res., 1: 217–223. [Taylor & Francis Online] [Google Scholar] ) and Greenwood ( 1964 Greenwood, E. S. 1964. Louse control in sheep — a comparison of seven dipping preparations. N.Z. Jl agric. Res., 7: 382–385. [Taylor & Francis Online] [Google Scholar] ) have tested a number of insecticides against biting lice and keds on sheep. The present paper reports hitherto unpublished work by Millar (nee Greenwood) up to 1966 and more recent work carried out since her departure.