It is shown that the steam-distilled oil of the plant Tagetes minima has strong repellent properties for blowflies and that it is suitable for use in a blowfly dressing.
Carbon tetrachloride and tetrachlorethylene are excellent larvicides for use against blowfly maggots, but tetrachlorethylene is irritating on wounds. Both these drugs are distinctly more effective than benzine.
Emulsions of the abovementioned substances are suitable as blowfly dressings and woolgrease was found to be the most satisfactory emulsifier. Particulars are given in regard to the preparation of a suitable emulsion.
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