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The Penetration of Derris through the Spiracles and Cuticle of Melophagus ovinus, L.

Published online by Cambridge University Press:  10 July 2009

J. E. Webb
J. E. Webb
Affiliation:
The Cooper Technical Bureau, Berkhamsted.
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Extract

In Melophagus ovinus, derris dust is shown to be absorbed through the spiracles and tracheal system. The amount of dust entering the tracheae is governed by the structure of the inspiratory spiracles and the rate of flow of the inspired air.

Factors stimulating the rate of respiration of the insect—i.e., increased muscular activity, the presence of 5 per cent. carbon dioxide and a rise in temperature, increase the rate of entry of derris into the body.

Penetration of derris takes place slowly through the external cuticle at 30° C., but not at all at 20°C. It is postulated that the entry of derris through the cuticle probably depends on the hardness of the lipoid layer.

Type
Original Articles
Information
Bulletin of Entomological Research , Volume 36 , Issue 1 , March 1946 , pp. 15 - 22
Copyright
Copyright © Cambridge University Press 1946

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References

Cotton, R. T. (1932.) The relation of respiratory metabolism of insects to their susceptibility to fumigants.—J. econ. Ent., 25, pp. 1088–1103.CrossRefGoogle Scholar
Hazelhoff, E. H. (1926.) On a new form of breathing regulation (regulation of diffusion) in Insects and Arachnida.—Proc. Acad. Sci. Amst., 29, pp. 492–496.Google Scholar
Hazelhoff, E. H. (1928.) Carbon dioxide a chemical accelerating the penetration of respiratory insecticides into the tracheal system by keeping open the tracheal valves.—J. econ. Ent., 21, p. 790.Google Scholar
Herford, G. M. (1938.) Tracheal pulsation in the flea.—J. exp. Biol., 15, pp. 327–338.CrossRefGoogle Scholar
Kitchel, R. L. & Hoskins, W. M. (1935.) Respiratory ventilation in the cockroach in air, in carbon dioxide and in nicotine atmospheres.—J. econ. Ent., 28, pp. 924–933.CrossRefGoogle Scholar
Lee, M. O. (1925.) On the mechanism of respiration in certain Orthoptera.—J. exp. Zool., 41, pp. 125–154.CrossRefGoogle Scholar
Lee, M. O. (1927.) A note on the mechanism of respiration in the Orthoptera.—J. exp. Zool., 49, pp. 319–320.CrossRefGoogle Scholar
McGovran, E. R. (1932.) The effect of some gases on the tracheal ventilation of grasshoppers.—J. econ. Ent., 25, pp. 271–276.CrossRefGoogle Scholar
Mellanby, K. (1934.) The site of water loss from insects.—Proc. roy. Soc. (B), 116, pp. 139–149.Google Scholar
Roark, R. C. (1939.) Insect pests of derris.—J. econ. Ent., 32, pp. 305–309.CrossRefGoogle Scholar
Shepard, H. H. & Campbell, F. L. (1932.) The relative toxicity of rotenone and some related compounds as stomach insecticides.—J. econ. Ent., 25, pp. 142–144.Google Scholar
Swingle, M. C. (1934.) Difference in action of derris and pyrethrum against the imported cabbage worm shown by experiments with gelatin films containing these plant materials.—J. econ. Ent., 27, pp. 1101–1102.Google Scholar
Tischler, N. (1935.) Studies on how derris kills insects.—J. econ. Ent., 28, pp. 215–220.CrossRefGoogle Scholar
Wigglesworth, V. B. (1935.) The regulation of respiration in the flea, Xenopsylla cheopis, Roths. (Pulicidae).—Proc. roy. Soc., (B), 118, pp. 397–419.Google Scholar
Wigglesworth, V. B. (1941.) The effect of pyrethrum on the spiracular mechanism of insects.—Proc. R. ent. Soc. Lond., (A) 16, pp. 11–14.Google Scholar
Woke, P. A. (1938.) The biological disposition of rotenone after ingestion by the southern army worm.—J. agric. Res., 57, pp. 707–712.Google Scholar