| Title: | Visually and olfactorily enhanced attractive devices for thrips management |
| Author(s): | van Tol R; Davidson MM; Butler RC; Teulon DAJ; de Kogel WJ; |
| Address: | Wageningen University and Research PO Box 69 Wageningen 6700 AB The Netherlands. New Zealand Institute for Plant and Food Research Limited Private Bag 4704 Christchurch New Zealand |
| ISSN/ISBN: | 0013-8703 (Print) 1570-7458 (Electronic) 0013-8703 (Linking) |
| Abstract: | "'Lure-and-infect' is an insect pest management strategy with high potential but so far there are few examples of its application. Using traps as surrogates for auto-dissemination devices, we tested the attractiveness to naturally occurring thrips (Thysanoptera: Thripidae) of three trap types differing in colour and structure, with and without the thrips lure methyl isonicotinate (MI), and sticky plate traps as a control. The aim was to find more effective traps that could be further developed into devices for auto-dissemination and lure-and-infect of thrips. The number of thrips captured varied substantially with trap type and the presence of the MI lure. We found a high visual response to a sticky 'white ruffle' trap (i.e., a 30-cm-long cylindrical outline of folded fabric), compared to a commonly used blue sticky plate trap (Bug-scan) as the control. This effect was seen both in a greenhouse with roses (Rosa spp.), where we encountered western flower thrips, Frankliniella occidentalis (Pergande), and in a grass field, where we encountered onion thrips, Thrips tabaci Lindeman, and New Zealand flower thrips, Thrips obscuratus (Crawford). In the absence of MI, the white ruffle trap caught 7-22x more thrips than the control Bug-scan trap. A similarly designed blue ruffle trap and a modified Lynfield trap caught lower thrips numbers than the white ruffle and the control Bug-scan traps. Presence of MI substantially increased the captures of T. tabaci in all three trap types in the field (2.5-18x). In the greenhouse, without MI the white ruffle trap caught 3.5-14x more thrips than the Bug-scan, blue ruffle, or modified Lynfield traps. Presence of MI increased the captures of F. occidentalis males and females in the Lynfield and blue ruffle traps (1.4-2.8x), but not in the white ruffle trap in the greenhouse (ca. 1.1x). The importance of visual and olfactory factors for the design of effective auto-dissemination and lure-and-infect strategies for thrips management is discussed" |
| Keywords: | Frankliniella occidentalis Thripidae Thrips obscuratus Thrips tabaci Thysanoptera auto-dissemination colour lure-and-infect methyl isonicotinate monitoring olfaction pest management strategy semiochemical sticky plate trap; |
| Notes: | "PubMed-not-MEDLINEvan Tol, Robert W H M Davidson, Melanie M Butler, Ruth C Teulon, David A J de Kogel, Willem Jan eng England 2020/11/06 Entomol Exp Appl. 2020 Sep; 168(9):665-677. doi: 10.1111/eea.12969. Epub 2020 Sep 27" |
