Leaffooted Bugs, Leptoglossus phyllopus (Hemiptera: Coreidae), Are Attracted to Volatile Emissions from Herbivore-Damaged Cotton Bolls
View abstract on PubMed
Summary
This summary is machine-generated.Leaffooted bugs are attracted to volatile organic compounds (VOCs) released by damaged cotton bolls. Understanding these plant signals can help develop eco-friendly pest management strategies for cotton.
Area Of Science
- Agricultural Entomology
- Plant-Insect Interactions
- Chemical Ecology
Background
- Leaffooted bugs (<i>Leptoglossus phyllopus</i>) damage cotton bolls, necessitating effective pest management.
- Current insecticide use raises concerns regarding resistance and environmental impact.
- Semiochemicals, including volatile organic compounds (VOCs), offer potential alternative pest control strategies.
Purpose Of The Study
- To identify VOCs emitted by cotton bolls damaged by leaffooted bugs.
- To assess the behavioral response of adult leaffooted bugs to these VOCs.
Main Methods
- Portable dynamic headspace sampling collected VOCs from cotton bolls in field conditions.
- Gas chromatography-mass spectrometry (GC-MS) analyzed the collected VOC samples.
- Dual-choice olfactometer assays evaluated adult leaffooted bug attraction/repulsion to specific VOCs.
Main Results
- Leaffooted bug herbivory significantly increased the emission of six compounds from cotton bolls.
- Adult leaffooted bugs were attracted to VOCs from damaged cotton bolls and individual synthetic compounds (benzaldehyde, α-pinene).
- A combination of synthetic benzaldehyde and α-pinene repelled leaffooted bugs.
Conclusions
- Volatile organic compounds from cotton bolls play a role in attracting leaffooted bugs.
- Specific VOCs, like benzaldehyde and α-pinene, show potential for use in pest lures.
- These findings support the development of semiochemical-based integrated pest management strategies for leaffooted bugs in cotton.

