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Further Considerations regarding the repellency of spray components

Published online by Cambridge University Press:  10 July 2009

B. Hocking
Affiliation:
Department of Entomology, University of Alberta.

Extract

The apparatus previously used to demonstrate the repellent properties of DDT, fuel oil and methylated naphthalene auxiliary solvents towards certain Diptera was used in further studies of olfactory repellency in an attempt to narrow down the ingredients responsible for this effect, and consideration was given to the possibility of finding substitutes for them with less repellent or even attractive properties.

Light, medium and heavy fractions were obtained by fractional distillation of fuel oil and each of two methylated naphthalene auxiliary solvents. In all these spray components the repellent properties are inversely related to the boiling point, and appear to be non-specific both chemically and by insects. Tests with materials of low volatility, however, showed that the effect is not a simple broad relationship between volatility and repellency.

Butoxy-polypropylene glycol, widely used as a ‘repellent’ ingredient of livestock sprays, shows olfactory attractiveness to Musca domestica L. and Aëdes aegypti (L.). The odour of Drosophila melanogaster Mg. was shown to be attractive to the insect, regardless of sex.

It is concluded that there seems little hope of an economic non-repellent material.

It is suggested that the repellency of spray components might be counteracted by the addition of specific attractants, sex or other, to spray formulae. Alternatively, a useful space repellent spray, containing no toxicant, might be formulated from the lighter fractions of the solvent materials.

Type
Research Paper
Copyright
Copyright © Cambridge University Press 1961

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References

Bruce, W. N. & Decker, G. C. (1955). Factors affecting the performance of treadle sprayers.—J. econ. Ent. 48 pp. 167169.CrossRefGoogle Scholar
Buxton, P. A. (1945). The use of the new insecticide DDT in relation to the problems of tropical medicine.—Trans. R. Soc. trop. Med. Hyg. 38 pp. 367400.CrossRefGoogle Scholar
Dethier, V. G. (1947). Chemical insect attractants and repellents.—289 pp. Philadelphia, Pa., Blakiston.Google Scholar
Ginsburg, J. M. (1935). Protection from mosquito bites in outdoor gatherings.—Science 82 pp. 490491.CrossRefGoogle ScholarPubMed
Granett, P., Haynes, H. L. & Helm, E. W. (1951). Further evaluation of butoxypolypropylene glycol as a fly repellent for dairy cattle.—J. econ. Ent. 44 pp. 97102.CrossRefGoogle Scholar
Gunther, F. A. (1945). Dichlorodiphenyltrichloroethane. I. Solubility in various solvents.—J. Amer. chem. Soc. 67 pp. 189190.CrossRefGoogle Scholar
Hecker, E. W. (1958). Isolation and characterization of the sex attractant of the silk worm moth (Bombyx mori L.).—Proc. 10th int. Congr. Ent. 2 pp. 293294.Google Scholar
Hocking, B. (1958). On the activity of Blatella germanica L. (Orthoptera: Blattidae).—Proc. 10th int. Congr. Ent. 2 pp. 201—204.Google Scholar
Hocking, B. & Lindsay, I. S. (1958). Reactions of insects to the olfactory stimuli from the components of an insecticidal spray.—Bull. ent. Res. 49 pp. 675683.CrossRefGoogle Scholar
Hodgson, E. S. & Roeder, K. D. (1956). Electrophysiological studies of arthropod chemoreception. I. General properties of the labellar chemoreceptors of Diptera.—J. cell. comp. Physiol. 48 pp. 5175.CrossRefGoogle ScholarPubMed
Jones, H. A., Fluno, H. T. & Hendrick, A. B. (1945). DDT insecticidal preparations.—J. econ. Ent. 38 pp. 207210.CrossRefGoogle Scholar
Kalmus, H. & Hocking, B. (1960). Behaviour of Aedes mosquitos in relation to blood-feeding and repellents.—Ent. exp. appl. 3 pp. 126.CrossRefGoogle Scholar
Norris, M. J. (1954). Sexual maturation in the desert locust (Schistocerca gregaria Forskål) with special reference to the effects of grouping.—Anti-Locust Bull. no. 18, 44 pp.Google Scholar