Notes on the Chemotropic Responses of Certain Insects

Abstract
This paper discusses very briefly some of the studies on insect chemotropism conducted over a period of 14 years at Clarksville, Tenn. During the period of investigation many different chemicals and substances were tested. The observations and experiments covered insects belonging to several orders including Lepidoptera, Coleoptera, Hymenoptera, Diptera, and Thysanoptera. Though in most instances the results were only indicative, the experiments brought out the fact that hornworm moths were strongly attracted to amyl salicylate and large numbers of moths were caught in the field by placing this chemical in suitable traps. Three types of apparatus are described.

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