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oai:recercat.cat:20.500.12327/1042025-10-22T11:04:25Zcom_2072_4428com_2072_4427col_2072_487898

00925njm 22002777a 4500 dc Teulon, David A. J. author Davidson, Melanie M. author Nielsen, Mette author Butler, Ruth author Bosch, Dolores author Riudavets, Jordi author Castañé, Cristina author 2018-07-25 Non-pheromone semiochemicals or allelochemicals (kairomones, synomones, allomones) are often derived from, or are similar to, host plant odours and depending on their use, these semiochemicals may have to compete with the same or similar odours emanating from adjacent host plants with unknown consequences on trapping efficacy. The aim of this study was to examine the efficacy of the non-pheromone thrips attractant methyl isonicotinate (MI) as a lure for Western flower thrips (WFT; Frankliniella occidentalis) over a range of Prunus persicae nectarine plant growth stages (flowering, green fruit, ripe fruit), when competition from different host plant odours may vary, and different numbers of thrips can be present, in a Catalan nectarine orchard in 2014 and 2015. Significant 2.4–3.9 × increases in WFT numbers in traps with MI compared with those without MI were consistent over the season (flowering, green fruit, mature fruit) despite overall differences in thrips numbers on these different occasions. These results suggest that MI is an effective lure throughout the nectarine growth stages despite the presumed presence of competing and changing host plant odours. Trap type and colour and MI release rate may be important for improving overall trap efficacy. Teulon, David A.J., Melanie M. Davidson, Mette Nielsen, Ruth Butler, Dolores Bosch, Jordi Riudavets, and Cristina Castañé. 2018. "Short Communication: Efficacy Of A Non-Pheromone Semiochemical For Trapping Of Western Flower Thrips In The Presence Of Competing Plant Volatiles In A Nectarine Orchard". Spanish Journal Of Agricultural Research 16 (3): 10-01. http://revistas.inia.es/index.php/sjar/article/view/13060/4144. 2171-9292 http://hdl.handle.net/20.500.12327/104 https://doi.org/10.5424/sjar/2018163-13060 Efficacy of a non-pheromone semiochemical for trapping of western flower thrips in the presence of competing plant volatiles in a nectarine orchard