Word: pyrethrum
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...British East Africa, the government has forbidden the killing of them there. A discovery which may furnish a better method of controlling the spread of sleeping sickness was announced recently by R. H. T. P. Harris, director of research in Zululand. He found the tsetse fly sensitive to pyrethrum (insect powder.) and veratrine (obtained from the root of the Indian poke). Especially effective was a .5% mixture of veratrine and cocoanut oil. Applied to a live animal, this mixture killed the attacking fly immediately. Since there are great stretches of land in Zululand which are unfit for agriculture, protesters...
...Pyrethrum extract...