| Title: | Climate change risk to pheromone application in pest management |
| Author(s): | El-Sayed AM; Ganji S; Gross J; Giesen N; Rid M; Lo PL; Kokeny A; Unelius CR; |
| Address: | "The New Zealand Institute for Plant and Food Research Limited, Gerald Street, Lincoln, 7608, New Zealand. ashraf.el-sayed@plantandfood.co.nz. Department of Chemistry and Biomedical Sciences, Faculty of Health and Life Sciences, Linnaeus University, 392 31, Kalmar, Sweden. Federal Research Centre for Cultivated Plants, Institute for Plant Protection in Fruit Crops and Viticulture, Julius Kuhn-Institut, Schwabenheimer Str. 101, 69221, Dossenheim, Germany. The New Zealand Institute for Plant and Food Research Limited, Hawke's Bay, Private Bag, 1401, Havelock North, 4157, New Zealand" |
| DOI: | 10.1007/s00114-021-01757-7 |
| ISSN/ISBN: | 1432-1904 (Electronic) 0028-1042 (Linking) |
| Abstract: | "Since of the first sex pheromone and the adoption of pheromone in pest management, the global pheromone market size has grown to reach USD 2.4 billion per year in 2019. This has enabled the development of environmentally friendly approaches that significantly reduce the application of pesticides. Recently, there have been reports of the failure of various commercial codlemone: (E,E)-8,10-dodecadien-1-ol formulations used for monitoring the apple pest codling moth, Cydia pomonella (L.). This work was initiated to investigate factors behind the lack of efficacy of codlemone lure in the Northern Hemisphere (Germany) and Southern Hemisphere (New Zealand). We hypothesised that the observed failure could be due to two main factors: (a) a shift in the response of male codling moth to codlemone and (b) degradation of codlemone under field conditions that renders the lure less attractive. Field trial tests of various doses and blends containing minor pheromone compounds suggested no change in response of male codling moth. The addition of an antioxidant and a UV stabiliser to codlemone resulted in a significant increase in the number of males caught in Germany, but not in New Zealand. Mean maximum temperatures during the growing season since 2004 indicate a 3 degrees C increase to 35 degrees C in Germany, but just a 1.5 degrees C rise to 30 degrees C in New Zealand. Chemical analysis of the lures used in the field trials in Germany and New Zealand indicated more degradation products and reduced half-life of the lures in Germany compared with those in New Zealand. Heating codlemone lures to 32 degrees C significantly reduced the number of males caught in traps and increased the isomeric and chemical impurities of codlemone compared with unheated lures. Our data provide the first evidence that climate change affects pheromone molecule stability, thus reducing its biological efficacy. Our finding suggests that climate change could be a general problem for chemical communication and, therefore, could affect the integrity of natural ecosystems" |
| Keywords: | Animals Climate Change Ecosystem Male *Moths Pest Control Pheromones/pharmacology *Sex Attractants/pharmacology Codling moth Cydia pomonella Global warming Monitoring Pest management Pheromones Stabiliser; |
| Notes: | "MedlineEl-Sayed, Ashraf M Ganji, Suresh Gross, Jurgen Giesen, Natalie Rid, Margit Lo, Peter L Kokeny, Anna Unelius, C Rikard eng Germany 2021/10/04 Naturwissenschaften. 2021 Oct 3; 108(6):47. doi: 10.1007/s00114-021-01757-7" |
