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New Zealand Plant Protection 67 (2014): 175-183

Evaluation of new volatile compounds as lures for western flower thrips and onion thrips in New Zealand and Spain

D.A.J. Teulon, C. Casta˝Ú, M-C Nielsen, A.M. El-Sayed, M.M. Davidson, R. Gardner-Gee, J. Poulton, A.M. Kean, C. Hall, R.C. Butler, C.E. Sansom, D.M. Suckling and N.B. Perry

ABSTRACT

Two glasshouse trials in a capsicum crop near Warkworth, New Zealand, in January 2011 and two field trials in a nectarine orchard near Lleida, Spain, in July 2013 were undertaken to determine if trap capture of Frankliniella occidentalis (western flower thrips, WFT) and Thrips tabaci (onion thrips, OT) could be increased by alternative volatile compounds beyond the known thrips attractant, methyl isonicotinate (MI). On blue sticky board traps in the crop in New Zealand, none of six alternative compounds tested caught more thrips (mostly WFT, OT and two other species) than the Control traps. In contrast to MI, catches with the alternative lures were mostly significantly lower. For both trials in the orchard in Spain using white water traps, the highest numbers of WFT and OT were caught higher than most of the nine alternative odour compounds tested.

Keywords: Frankliniella occidentalis, Thrips tabaci, lure, methyl isonicotinate, LUREM-TR, nectarine, capsicum.

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