Letter | Published:

Pyrethrum Resistance conferred by Resistance to DDT in the Blue Tick


IN a general investigation of the effectiveness of pyrethrum formulations for the control of a variety of species of cattle ticks in South Africa, a laboratory study of the effect of pyrethrum on the blue tick, Boophilus decoloratus Koch, was undertaken.

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  1. 1

    Whitehead, Bull. Ent. Res., 49, 661 (1958).

  2. 2

    Metcalf, Phys. Rev., 35, 197 (1955)

  3. 3

    Busvine, Trans. Ninth Internat. Cong. Ent., 2, 335 (1953).

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