Orientation and Oviposition by Female Plodia interpunctella (Lepidoptera: Pyralidae) in Response to Volatiles from Varieties of Peanuts

Simple Summary The Indian meal moth, the Plodia interpunctella (Hübner, 1813) (Lepidoptera: Pyralidae), is a globally widespread stored-product pest. Female P. interpunctella show a stronger oviposition preference for normal-oleic peanuts over high-oleic peanuts, maize, wheat, and paddy rice. We hypothesize that this preference for peanuts over grains is mediated by plant volatiles. In this study, we collected the volatile compounds from peanuts by dynamic headspace adsorption, selected seventeen compounds that are commonly found in most peanut varieties and have relatively high contents, and evaluated the electrophysiological and behavioral responses to the P. interpunctella. Aldehydes, especially heptanal, nonanal, hexanal, octanal, and decanal, have a significant attraction to moths. Our results provide insight into the chemical cues used by P. interpunctella females to locate the host. These compounds could potentially be developed as novel tools for monitoring and controlling P. interpunctella.

• Publication year

  2025

• Venue

  Insects

• Publication date

  2025-11-01

• Fields of study

  Biology, Agricultural and Food Sciences, Medicine, Environmental Science

• Identifiers
  DOI 10.3390/insects16111145PMID 41302891PMCID 12653512
• External record

  Open on Semantic Scholar

• Source metadata

  Semantic Scholar, PubMed

• No claims are published for this paper.

• No concepts are published for this paper.

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