Hostname: page-component-78c5997874-mlc7c Total loading time: 0 Render date: 2024-11-13T04:59:36.770Z Has data issue: false hasContentIssue false

The susceptibility of tsetse flies to topical applications of insecticides. I.—Young adults of Glossina morsitans Westw. and chlorinated hydrocarbons

Published online by Cambridge University Press:  10 July 2009

G. F. Burnett
Affiliation:
Tropical Pesticides Research Institute, Arusha, Tanganyika.

Extract

Solutions of six chlorinated-hydrocarbon insecticides in kerosene have been applied in drops of about 0·02 microlitre (µl.) to adults of Glossina morsitans Westw., 2–5 days old, one day after the first meal. This species is found to be unusually susceptible to this group of insecticides. In order of increasing toxicity they are: DDT and aldrin, γ BHC, dieldrin and endrin, Telodrin (1,3,4,5,6,7,8,8-octachloro-3a,4,7,7a-tetrahydro-4,7-methanophthalan). The LD50 of DDT was 0·0165 µg. (males) and 0·025 µg. (females), that of Telodrin was 0·00062 µg. (males). Susceptibility of the two sexes to DDT, γ BHC and dieldrin did not differ significantly. Two batches of flies tested with an interval of eight months differed by about two times in their response to dieldrin and γ BHC; but the response to DDT was unchanged. This difference was not seasonal.

For practical use, dieldrin is the best and cheapest available insecticide, a fact confirmed in the field. Only Telodrin might replace it.

Type
Research Paper
Copyright
Copyright © Cambridge University Press 1961

Access options

Get access to the full version of this content by using one of the access options below. (Log in options will check for institutional or personal access. Content may require purchase if you do not have access.)

References

Burnett, G. F., Yeo, D., Miller, A. W. D. & White, P. J. (1961). Aircraft applications of insecticides in East Africa. XIII.—Bull. ent. Res. 52 pp. 305316.CrossRefGoogle Scholar
Busvine, J. R. (1952). The newer insecticides in relation to pests of medical importance.—Trans. R. Soc. imp. Med. Hyg. 46 pp. 245252.CrossRefGoogle ScholarPubMed
Fisher, R. A. & Yates, F. (1948). Statistical tables for biological, agricultural and medical research.—3rd edn., 112 pp. Edinburgh, Oliver & Boyd.Google Scholar
Foster, R., White, P. J. & Yeo, D. (1961). Aircraft applications of insecticides in East Africa. XII.—Bull. ent. Res. 52 pp. 293303.CrossRefGoogle Scholar
Hadaway, A. B. (1956). Cumulative effect of sub-lethal doses of insecticides on housenies.—Nature, Lond. 178 pp. 149150.CrossRefGoogle Scholar
Hocking, K. S., Burnett, G. F. & Sell, R. C. (1954). Aircraft applications of insecticides in East Africa. VIII.—Bull. ent. Res. 45 pp. 613622.CrossRefGoogle Scholar
Hocking, K. S., Parr, H. C. M., Yeo, D. & Anstey, D. (1953). Aircraft applications of insecticides in East Africa. IV.—Bull. ent. Res. 44 pp. 627640.CrossRefGoogle Scholar
Hocking, K. S. & Yeo, D. (1956). Aircraft applications of insecticides in East Africa. XI.—Bull. ent. Res. 47 pp. 631644.CrossRefGoogle Scholar
Kerr, R. W. (1954). A method for the topical application of small measured doses of insecticide solutions to individual insects.—Bull. ent. Res. 45 pp. 317321.CrossRefGoogle Scholar
Lewallen, L. L. (1954). Biological and toxicological studies of the little house fly.—J. econ. Ent. 47 pp. 11371141.CrossRefGoogle Scholar
Litchfield, J. T. & Wilcoxon, F. (1949). A simplified method of evaluating dose-effect experiments.—J. Pharmacol. 96 pp. 99113.Google ScholarPubMed
Rogoff, W. M. & Metcalf, R. L. (1951). Some insecticidal properties of heptachlor.—J. econ. Ent. 44 pp. 910918.CrossRefGoogle Scholar
Yeo, D. & Thompson, B. W. (1954). Aircraft applications of insecticides in East Africa. V.—Bull. ent. Res. 45 pp. 7992.CrossRefGoogle Scholar