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The Use of a Plaster Substratum for testing Pyrethrum-oil Films against Ornithodorus moubata, Murray (Acarina : Argasidae)

Published online by Cambridge University Press:  10 July 2009

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

Extract

Pyrethrum-oil films were tested in various forms on plaster substrata against the tick, Ornithodorus moubata. The insecticide was most effective if applied :—

1. Concentrated rather than dilute.

2. In a medium rather than a light petroleum oil.

3. As an emulsion in Lanette Wax Solution rather than in oil alone.

4. With an irritant (such as 4-chlor-2-methyl-phenol) present in the solution.

Type
Original Articles
Copyright
Copyright © Cambridge University Press 1943

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References

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