| Title: | Identification of sex pheromone in Macdunnoughia crassisigna Warren (Lepidoptera: Noctuidae) and field optimization of the sex attractant |
| Author(s): | Wang L; Yang C; Mei X; Guo B; Yang X; Zhang T; Ning J; |
| Address: | "State Key Laboratory for Biology of Plant Diseases and Insect Pests, Institute of Plant Protection, Chinese Academy of Agricultural Sciences, Beijing, 100193, China. Innovation Center of Pesticide Research, Department of Applied Chemistry, College of Science, China Agricultural University, Beijing, 100193, China. Hebei Academy of Agriculture and Forestry Sciences, Integrated Pest Management Center of Hebei Province, Key Laboratory of IPM on Crops in Northern Region of North China, Ministry of Agriculture, Institute of Plant Protection, Baoding, 071000, China" |
| ISSN/ISBN: | 1526-4998 (Electronic) 1526-498X (Linking) |
| Abstract: | "BACKGROUND: Sex pheromone has proven to be a viable tool for monitoring and controlling pests and has been an important part of integrated pest management (IPM). The noctuid moth Macdunnoughia crassisigna Warren poses a significant threat as a defoliator pest, impacting soybean and cruciferous vegetable production and quality in East Asia. However, the lack of comprehensive knowledge about its sexual chemical signaling hampers the development of semiochemical-based IPM approaches for M. crassisigna. RESULTS: We first determined the mating rhythms of M. crassisigna. We then collected pheromones from the sex glands of virgin females at the mating peak and analyzed their components using gas chromatography-electroantennogram detection (GC-EAD) analysis. The results showed that three components elicited significant electrophysiological responses in male antennae. Gas chromatography-mass spectrometry (GC-MS) analysis characterized these components as (Z)-7-dodecene acetate (Z7-12: OAc), (Z)-9-tetradecene acetate (Z9-14: OAc), and (Z)-11-hexadecen-1-ol (Z11-16: OH). Further field experiments indicated that the mixture of Z7-12: OAc and Z9-14: OAc at a ratio of 3:1 displayed significant attractivity to males, confirming its role as a putative sex pheromone of M. crassisigna. Long-term monitoring tests showed that traps baited with these pheromone lures effectively mirrored the population dynamics of M. crassisigna. CONCLUSION: This study successfully identified and validated the sex pheromone released by female M. crassisigna and formulated potent sex lures for field-based pest monitoring. These findings enriched our understanding of chemical communication in Noctuidae and laid a foundation for developing practical monitoring and control methods against M. crassisigna. This article is protected by copyright. All rights reserved" |
| Keywords: | Chemical communication Ipm Macdunnoughia crassisigna identification monitoring sex pheromone; |
| Notes: | "PublisherWang, Liuyang Yang, Chaoxia Mei, Xiangdong Guo, Bingbo Yang, Xinling Zhang, Tao Ning, Jun eng England 2023/09/22 Pest Manag Sci. 2023 Sep 21. doi: 10.1002/ps.7783" |
