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The effects of smoke from mosquito coils on Anopheles gambiae Giles and Mansonia uniformis (Theo.) in verandah-trap huts at Magugu, Tanzania

Published online by Cambridge University Press:  10 July 2009

J. E. Hudson  and
S. Esozed
J. E. Hudson
Affiliation:
East African Community, Tropical Pesticides Research Institute, P.O. Box 3024, Arusha, Tanzania.
S. Esozed
Affiliation:
East African Community, Tropical Pesticides Research Institute, P.O. Box 3024, Arusha, Tanzania.
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Extract

The effects of smoke from mosquito coils containing pyrethrins or DDT on Anopheles gambiae Giles and Mansonia uniformis (Theo.) were investigated by burning coils for five nights per week in three man-baited verandah-trap huts. Three other verandah-trap huts served as controls. Smoke from 004–0–3% pyrethrins coils deterred 24–84% of A. gambiae and 71–93% of M. uniformis from entering treated huts, and that from 7–3–130% DDT coils deterred 91 % of A. gambiae and 92% of M. uniformis.In pyrethrum-treated huts 62–76% A. gambiae were unfed (33–67% in the controls) and 80–99% were in the exit traps (43–79% in the controls). In DDT-treated huts 85% A.gambiae were unfed (48% in the controls) and 100% were in the exit traps (55% in the controls). With M. uniformis, 61–84% in the pyrethrum-treated huts were unfed (38–54% in the controls) and in the DDT-treated huts 71 % (69% in the controls). The effects of the smokes on the egress of M. uniformis could not be assessed since 82–100% were in the exit traps in the treated and in the control huts. Overall mortalities never exceeded 22% of A. gambiae and 12% of M. uniformis, but some dead mosquitoes may have been removed by ants. With pyrethrum coils, feeder-survivor indices were 15–84% for A. gambiae and 90–98% for M. uniformis, and with the DDT coils, 94% and 96%, respectively. When caged A. gambiae females were exposed all night in the huts, 24-h delayed mortalities caused by 019–0–30% pyrethrins coils were 38–56%, by 009% pyrethrins coils 12–27%, and by 004% pyrethrins coils 3–5%. DDT coils produced 99–100% mortality in 24 h, but this may have been due to contact with contaminated mosquito netting.

Type
Research Paper
Information
Bulletin of Entomological Research , Volume 61 , Issue 2 , November 1971 , pp. 247 - 265
Copyright
Copyright © Cambridge University Press 1971

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References

Bertram, D. S. & McGregor, I. A. (1956). Catches in the Gambia, West Africa, of Anopheles gambiae Giles and A. gambiae var, melas Theobald in entrance traps of a baited portable wooden hut, with special reference to the effect of wind direction.—Bull. ent. Res. 47, 669–681.CrossRefGoogle Scholar
Dethier, V. G., Browne, L. B. & Smith, C. N. (1960). The designation of chemicals in terms of the responses they elicit from insects.—J. econ. Ent. 53, 134–136.CrossRefGoogle Scholar
East Africa High Commission (1960). Report on the Pare-Taveta malaria scheme 1954–59. Editer by Wilson, D. B..—90 pp. Dar es Salaam, Govt. Printer.Google Scholar
Fales, J. H., Mills, G. D. jr &Dubin, C. G. jr. (1968). Evaluation of smoke from insecticidal coils against mosquitoes.—Mosquito News 28, 547–553.Google Scholar
Fennah, R. G. (1945). Preliminary tests with DDT against insect pests of food crops in the Lesser Antilles.—Trop. Agric., Trin. 22, 222–226.Google Scholar
Foll, C. V., Pant, C. P. & Lietaert, P. E. (1965). A large-scale field trial with dichlorvos as a residual fumigant insecticide in Northern Nigeria.—Bull. Wld Hlth Org. 32, 531–550.Google ScholarPubMed
Godin, P. J. & Sleeman, R. J. (1964). A qualitative examination of mosquito coil smoke by gas-liquid chromatographic analysis.—Pyrethrum Post 7 (3), 18–19.Google Scholar
Gratz, N. G., Bracua, P. & Caitmiciall, A. (1963). A village-scale trial with dichlorvos as a residual fumigant insecticide in Southern Nigeria.—Bull. Wld Hlth Org. 29, 251–270.Google Scholar
Hamon, J., Mouchet, J., Chauvet, G. & Lumaret, R. (1965). Bilan de quatorze années de lutte contre le paludisme dans les pays francophones d'afrique tropicale et à Madagascar. Considérations sur la persistance de la transmission et perspectives d'avenir.—Bull. Soc. Path. exot. 56, 933–971.Google Scholar
Kogan, M. (1961). Determination of the repellency of pyrethrum used in mosquito coils and the synergistic effect of piperonyl butoxide.—Rev. bras. biol. 21, 17—36 [in Portuguese].Google Scholar
Laws, E. R., Curley, A. & Biros, F. J. (1967). Men with intensive occupational exposure to DDT—a clinical and chemical study.—Arch. Environ. Health. 15, 766–776.CrossRefGoogle Scholar
Mace, E. F. (1969). Biological test method for mosquito coils.—Pyrethrum Post 10 (1), 41–43.Google Scholar
Maciver, D. R. (1963). Mosquito coils, part I: General description of coils, their formulation and manufacture.—Pyrethrum Post 7 (2), 22–27.Google Scholar
Maciver, D. R. (1964 a). Mosquito coils, part II: Studies on the action of mosquito coil smoke on mosquitoes.—Pyrerhrum Post 7 (3), 7–14.Google Scholar
Maciver, D. R. (1964 b). Mosquito coils, part III: Factors influencing the release of pyrethrins from coils.—Pyrethrum Post 7 (3), 15–17.Google Scholar
Muirhead-Thomson, R. C. (1947). The effects of house spraying with pyrethrum and with DDT on Anopheles gambiae and A. melas in West Africa.—Bull. ent. Res. 38, 449–464.Google Scholar
Nagasawa, S. & Uruha, C. (1949). Studies on the biological assay of insecticides, VII: On the knock down effects of mosquitocide incense made of pyrethrum mixed with benzophenone against the adult of the common housefly (Musca domestica L.).—Botyu Kagaku 14, 31–41. [in Japanese, summary in English]Google Scholar
Nagasawa, S., Katsuda, Y., Okamoto, A. & Ohono, M. (1951). Studies on the biological assay of insecticides, XVII: On the knock down effect of so-called pyrethrins and allethrin coating mosquitocide incense to adults of the common house mosquito (Culex pipiens var. pallens Coquillett).—Botyu Kagaku 16, 176–181. [in Japanese, summary in English]Google Scholar
Neal, P. A., von Oetringen, W. F., Smith, W. W., Malmo, R. B., Dunn, R. C., Moran, H. E.., Sweeney, T. R., Armstrong, D. W. & White, W. C. (1944).—Toxicity and potential dangers of aerosols, mists and dusting powders containing DDT.—Publ. Hlth Rep., Wash. Suppl. no. 177, 32 pp.Google Scholar
Paulini, E. & Ricciardi, I. (1954). The repellent effect of pyrethrin vapour to Culex fatigans.—Trans. R. Soc. trop. Med. Hyg. 48, 276–277.Google Scholar
Quarterman, K. D., Lotte, M. & Schoof, H. F. (1963). Initial field studies in Upper Volta with dichlorvos residual fumigant as a malaria eradication technique, 1: General considerations.—Bull. Wld Hlth Org. 29, 231–235.Google Scholar
Rapley, R. E. (1961). Notes on the construction of experimental huts.—Bull. Wld Hlth Org. 24, 659–663.Google Scholar
Schoental, R. & Gibbard, S. (1967). Carcinogens in Chinese incense smoke.—Nature, Lond. 216, 612.Google Scholar
Smith, A. (1963). Principles in assessment of insecticides by experimental huts.—Nature, Lond. 198, 171–173.CrossRefGoogle ScholarPubMed
Smith, A. (1964 a). Studies on Anopheles gambiae Giles and malaria transmission in the Umbugwe area of Tanganyika.—Bull. ent. Res. 55, 125–137.Google Scholar
Smith, A. (1964 b). A review of the origin and development of experimental hut techniques used in the study of insecticides in East Africa.—E. Afr. med. J. 41, 361–374.Google Scholar
Smith, A. (1965 a). A verandah-trap hut for studying the house-frequenting habits of mosquitos and for assessing insecticides. A description of the verandah-trap hut and of studies on the egress of Anopheles gambiae Giles and Mansonia uniformis (Theo.) from an untreated hut.—Bull. ent. Res. 56, 161–167.CrossRefGoogle ScholarPubMed
Smith, A. (1965 b). A verandah-trap hut for studying the house-frequenting habits of mos quitos and for assessing insecticides. The effect of dichiorvos (DDVP) on egress and mortality of Anopheles gambiae Giles and Mansonia uniformis (Theo.) entering naturally.—Bull. ent. Res. 56, 275–282.CrossRefGoogle Scholar
Smith, A. & Obudho, W. O. (1967). Trials with pyrethrum mosquito coils against Anopheles gambiae entering a verandah-trap hut.—Pyrethrum Post 9 (2), 15–17.Google Scholar
Smith, A., Park, P. O. & Hocking, K. S. (1964). Assessment of the kill of Anopheles gambiae by the fumigant insecticide dichiorvos in experimental huts.—Bull. Wld Hlth Org. 31, 399–409.Google Scholar
Smith, A. & Webley, D. J. (1969). A verandah-trap hut for studying the house-frequenting habits of mosquitoes and for assessing insecticides. III. The effect of DDT on behaviour and mortality.—Bull ent. Res. 59, 33–46.Google Scholar
Winney, R. (1969). The biological activity of mosquito coils based on pyrethrum and coils based on other active ingredients.—Pyrethrum Post 10 (1), 3–6.Google Scholar
WHO (1970). Insecticide resistance and vector control.—17th report of the WHO Expert Committee on insecticides.—Techn. Rep. Ser. Wld Hlth Org. no. 443, 279 pp.Google Scholar