| Title: | "Nonanal, a new fall armyworm sex pheromone component, significantly increases the efficacy of pheromone lures" |
| Author(s): | Saveer AM; Hatano E; Wada-Katsumata A; Meagher RL; Schal C; |
| Address: | "Department of Entomology and Plant Pathology, North Carolina State University, Raleigh, North Carolina, USA. Center for Medical, Agricultural and Veterinary Entomology, United States Department of Agriculture, Agricultural Research Service, Gainesville, Florida, USA" |
| ISSN/ISBN: | 1526-4998 (Electronic) 1526-498X (Linking) |
| Abstract: | "BACKGROUND: The fall armyworm (FAW), Spodoptera frugiperda (J.E. Smith), is a global pest that feeds on >350 plant species and severely limits production of cultivated grasses, vegetable crops and cotton. An efficient way to detect new invasions at early stages, and monitor and quantify the status of established infestations of this pest is to deploy traps baited with species-specific synthetic sex pheromone lures. RESULTS: We re-examined the compounds in the sex pheromone glands of FAW females by gas chromatography-electroantennogram detector (GC-EAD), GC-mass spectrometry (MS), behavioral and field assays. A new bioactive compound from pheromone gland extracts was detected in low amounts (3.0% relative to (Z)-9-tetradecenyl acetate (Z9-14:OAc), the main pheromone component), and identified as nonanal. This aldehyde significantly increased attraction of male moths to a mix of Z9-14:OAc and (Z)-7-dodecenyl acetate in olfactometer assays. Adding nonanal to this two-component mix also doubled male trap catches relative to the two-component mix alone in cotton fields, whereas nonanal alone did not attract any moths. The addition of nonanal to each of three commercial pheromone lures also increased male catches by 53-135% in sorghum and cotton fields. CONCLUSION: The addition of nonanal to pheromone lures should improve surveillance, monitoring and control of FAW populations. (c) 2023 The Authors. Pest Management Science published by John Wiley & Sons Ltd on behalf of Society of Chemical Industry" |
| Keywords: | Animals Female *Sex Attractants/pharmacology/chemistry Spodoptera Gas Chromatography-Mass Spectrometry Pheromones *Moths Aldehydes Spodoptera frugiperda fall armyworm lures nonanal sex pheromone trapping; |
| Notes: | "MedlineSaveer, Ahmed M Hatano, Eduardo Wada-Katsumata, Ayako Meagher, Robert L Schal, Coby eng National Science Foundation/ North Carolina Biotechnology Center/ USDA Southern IPM Center/ England 2023/03/21 Pest Manag Sci. 2023 Aug; 79(8):2831-2839. doi: 10.1002/ps.7460. Epub 2023 Apr 11" |
