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On the chemotropism of insects and its significance for Economic Entomology

Published online by Cambridge University Press:  10 July 2009

Ivar Trägårdh
Ivar Trägårdh
Affiliation:
Experimentalfültet, Sweden.
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Extract

In a highly interesting article in a previous number of this journal (vol. iii, p. 343) J. Dewitz discussed “The bearing of physiology on economic entomology,” and gave in this connection, amongst other things, an account of the various kinds of tropisms and their use, besides which he also pointed out the necessity for studying these for the purpose of discovering weapons for fighting noxious insects. It strikes me, however, as if the importance of chemotropism had not been emphasised in this survey as in my opinion it ought to have been, and the purpose of these modest lines is partly to draw attention to two important researches in this branch of science, recently carried out independently of each other, partly to point out that with the aid of chemotropism we shall in all probability be able to discover new weapons for the fight against noxious insects.

Type
Original Articles
Information
Bulletin of Entomological Research , Volume 4 , Issue 2 , September 1913 , pp. 113 - 117
Copyright
Copyright © Cambridge University Press 1913

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References

1.Dewitz, J. The bearing of physiology on economic entomology.—Bull. of Ent. Research, vol. iii, pp. 343–354. London, 1912.Google Scholar
2.Verschaffelt, Ed. The cause determining the selection of food in some herbivorous insects.—Konink. Akad. van Wetenschappen te Amsterdam, Proc. of the Section of Sciences, vol. xiii, part 1, pp. 536–542. Amsterdam, 1910.Google Scholar
3.Howlett, F. M.The effect of oil of citronella on two species of Dacus.— Trans. Ent. Soc. London, 1912, pp. 442–448.Google Scholar