Neurophysiological and Behavioral Responses of Gypsy Moth Larvae to Insect Repellents: DEET, IR3535, and Picaridin

Jillian L Sanford, Sharon A Barski, Christina M Seen, Joseph C Dickens and Vonnie D C Shields

PLOS ONE, 2014, vol. 9, issue 6, 1-7

Abstract: The interactions between insect repellents and the olfactory system have been widely studied, however relatively little is known about the effects of repellents on the gustatory system of insects. In this study, we show that the gustatory receptor neuron (GRN) located in the medial styloconic sensilla on the maxillary palps of gypsy moth larvae, and known to be sensitive to feeding deterrents, also responds to the insect repellents DEET, IR3535, and picaridin. These repellents did not elicit responses in the lateral styloconic sensilla. Moreover, behavioral studies demonstrated that each repellent deterred feeding. This is the first study to show perception of insect repellents by the gustatory system of a lepidopteran larva and suggests that detection of a range of bitter or aversive compounds may be a broadly conserved feature among insects.

Date: 2014
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Persistent link: https://EconPapers.repec.org/RePEc:plo:pone00:0099924

DOI: 10.1371/journal.pone.0099924

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