§ 45. Mr. Hurdasked the Minister of Agriculture if his Department has tested the effectiveness and economy of spraying sheep with D.D.T. and similar preparations compared with using arsenical dips as a means of destroying parasites and preventing scab infection; and if he intends to amend the sheep dipping regulations to take account of new knowledge.
The Minister of Agriculture (Mr. Thomas Williams)I am advised that D.D.T. is not effective against sheep scab and that under farm conditions spraying, even with preparations that are effective, would not normally give such good control as dipping. The regulations (which relate only to sheep scab) have been amended to permit single dipping (in place of double dipping) with dips containing certain of the new preparations, but I do not propose to amend them to permit spraying.