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The relative Toxicity of Rotenone and Pyrethrum in Oil to the Argasid Tick, Ornithodorus moubata, Murray

Published online by Cambridge University Press:  10 July 2009

G. G. Robinson
G. G. Robinson
Affiliation:
London School of Hygiene and Tropical Medicine.
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Extract

(1) Coal-tar phenols are useful intermediate solvents for making solutions of rotenone in both mineral and vegetable oils.

(2) Medium petroleum oil showed superiority to ground-nut oil as a carrier of rotenone in xylenol tested against Ornithodorus moubata.

(3) The solutions of rotenone in xylenol and oil showed no deterioration after storage in the dark at room temperature for six weeks.

(4) In these solutions rotenone proved far less toxic to Ornithodorus moubata than an equal weight of pyrethrin I in medium petroleum oil.

Type
Original Articles
Information
Bulletin of Entomological Research , Volume 33 , Issue 4 , December 1942 , pp. 273 - 281
Copyright
Copyright © Cambridge University Press 1942

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