Hostname: page-component-586b7cd67f-vdxz6 Total loading time: 0 Render date: 2024-11-25T09:45:29.402Z Has data issue: false hasContentIssue false

Observations on the Thermal Death Points of the Blow-fly at different relative Humidities

Published online by Cambridge University Press:  10 July 2009

Mary V. F. Beattie
Affiliation:
Research Student, Department of Medical Entomology, London School of Hygiene and Tropical Medicine.

Extract

In summarising, the following points are to be noted:—

1. The thermal death point of the blow-fly was definitely influenced by the factor of humidity.

2. Saturated and dry air had the effect of lowering the thermal death point.

3. Relative humidities from 60 per cent. to 80 per cent. were more favourable, while relative humidity of 70 per cent. actually was found to be an optimum point.

4. From the weighings it may be concluded that death in saturated air was due to the inability of the flies to regulate their heat by evaporation.

Type
Original Articles
Copyright
Copyright © Cambridge University Press 1928

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

Bachmetjev, P. 1901. “ Experimentelle entomologische Studien.” Leipzig.Google Scholar
Buxton, P. A. 1923. “ On predicting the seasonal prevalence of an insect.”—Trans. Roy. Soc. Trop. Med. & Hyg., xvi, no. 8, pp. 465468.CrossRefGoogle Scholar
Headlee, T. J. 1917. “ Some facts relative to the influence of atmospheric humidity on insect metabolism.”—Jl. Econ. Ent., x, pp. 3138.CrossRefGoogle Scholar
Pierce, W. D. 1916. “ A new interpretation of the relationship of temperature and humidity to insect development.”—Jl. Agric. Res., Washington, v, no. 25, pp. 11831191.Google Scholar
Wardle, R. A. & Buckle, P. 1923. “ The Principles of Insect Control.” Manchester.Google Scholar