Inhibitory effect of thymol on pheromone-mediated attraction in two pest moth species.

ABSTRACT: Plant essential oils are considered as important bio-sources for the development of natural and environmentally safe pest control tools due to their multiple modes of action on insects. In this paper we have evaluated the activity of commercially available thyme oil and its constituents thymol, carvacrol, and p-cymene, as potential disruptants of the pheromone-mediated communication in the major pest moths Spodoptera littoralis Boisduval (Lepidoptera: Noctuidae), and Grapholita molesta (Busck) (Lepidoptera: Tortricidae). In electroantennographic assays, the antennal response of males to thyme oil, thymol, and carvacrol was altered at high doses (10³-10⁴ µg), shifting the signal waveform into a biphasic negative-positive potential that caused a decay in the response. I

SUBMITTER: Lopez S 

PROVIDER: S-EPMC7807059 | biostudies-literature | 2021 Jan

REPOSITORIES: biostudies-literature