| Title: | "Optimization and field evaluation of sex-pheromone of potato tuber moth, Phthorimaea operculella Zeller (Lepidoptera: Gelechiidae)" |
| Author(s): | Yan J; Zhang M; Ali A; Du X; Mei X; Gao Y; |
| Address: | "State Key Laboratory for Biology of Plant Diseases and Insect Pests, Institute of Plant Protection, Chinese Academy of Agricultural Sciences, Beijing, China. Department of Entomology, Faculty of Agriculture, University of Agriculture Faisalabad, Faisalabad, Pakistan. College of Life Science, Shenyang Normal University, Shenyang, China. National Center of Excellence for Tuber and Root Crop Research, Chinese Academy of Agricultural Sciences, Beijing, China" |
| ISSN/ISBN: | 1526-4998 (Electronic) 1526-498X (Linking) |
| Abstract: | "BACKGROUND: The potato tuber moth, Phthorimaea operculella is a key pest of potato and tobacco in China. We compared the sex pheromone titers released by P. operculella female, and the electroantennogram (EAG) responses of male antennae to pheromone compounds under laboratory conditions. Then, the optimal sex pheromone ratio was screened in the field. RESULTS: The P. operculella sex pheromone feeding on potato or tobacco was extracted by solvent-extraction method. Main sex pheromone compounds including E4, Z7-13: AC (PTM1) and E4, Z7, Z10-13: AC (PTM2) were found in gland. The titer and relative ratio of P. operculella sex pheromone compounds secreted by female adult moths differ between host populations, while the relative EAG responses trend of P. operculella males to the pheromone components were the same when directly stimulated. In field trials, PTM1:PTM2 = 8:1-4:1 and PTM1:PTM2 = 1:4-1:7 was the most attractive ratio to P. operculella males in tobacco and potato fields, respectively. During 2019-2020, after 8 weeks of mass trapping for each year, the sex pheromone could reduce the population of P. operculella in the potato and tobacco fields. CONCLUSIONS: In this study, fixed property and quantity analyzing methods were adopted to compare sex pheromones from feeding on potato versus tobacco. EAG tests then were carried out on P. operculella males. Finally, we optimized the ratio of two sex pheromone compounds in potato and examined how this influenced field trapping. By further improving the parameters of sex pheromone application in the field, we demonstrate that deployment of sex pheromones can provide effective control of P. operculella. (c) 2021 Society of Chemical Industry" |
| Keywords: | Animals China Female Male *Moths Pheromones/pharmacology *Sex Attractants/pharmacology *Solanum tuberosum Eag Phthorimaea operculella ratio sex pheromone trapping test; |
| Notes: | "MedlineYan, Junjie Zhang, Mengdi Ali, Abid Du, Xia Mei, Xiangdong Gao, Yulin eng England 2021/11/19 Pest Manag Sci. 2022 Sep; 78(9):3903-3911. doi: 10.1002/ps.6725. Epub 2021 Dec 6" |
