Spatial analysis of mass trapping: how close is close enough?. Issue 10 (30th December 2014)

• Record Type: Journal Article
• Authors: Suckling, David M; Stringer, Lloyd D; Kean, John M; Lo, Peter L; Bell, Vaughn; Walker, James TS; Twidle, Andrew M; Jiménez‐Pérez, Alfredo; El‐Sayed, Ashraf M
• Is Part Of: Pest management science. Volume 71:Issue 10(2015:Oct.)
• Page Start: 1452
• Page End: 1461
• Publication Date: 2014-12-30
• Subjects: Pests -- Control -- Periodicals; Pesticides -- Periodicals; 632.9
• DOI: 10.1002/ps.3950
• Languages: English
• ISSNs: 1526-498X

Abstract

<abstract abstract-type="main" id="ps3950-abs-0001"> <title>Abstract</title> <sec id="ps3950-sec-0001" sec-type="section"> <title>BACKGROUND</title> <p id="ps3950-para-0001">The identification of new attractants can present opportunities for developing mass trapping, but standard screening methods are needed to expedite this. We have developed a simple approach based on quantifying trap interference in 4 × 4 trap arrays with different spacings. We discuss results from sex pheromones in Lepidoptera (light brown apple moth, <italic>Epiphyas postvittana</italic>), Diptera (apple leaf curling midge, <italic>Dasineura mali</italic>) and Homoptera (citrophilous mealybug, <italic>Pseudococcus calceolariae</italic>), compared with a kairomone for New Zealand flower thrips (<italic>Thrips obscuratus</italic>).</p> </sec> <sec id="ps3950-sec-0002" sec-type="section"> <title>RESULTS</title> <p id="ps3950-para-0002">The ratio of catch in corner traps to catch in centre traps was 25:1 at 750 <italic>D. mali</italic> traps ha<sup>−1</sup>, and was still ∼5:1 at 16 traps ha<sup>−1</sup>, suggesting trap interference even at such low trap densities. Trap competition for sex pheromone lures at close spacing (<5 m) was evident in 16‐trap arrays of <italic>P. calceolariae</italic>, but less so for <italic>E. postvittana</italic>. No trap competition was observed at 4 m spacings with the kairomone for <italic>T. obscuratus</italic>.</p> </sec> <sec id="ps3950-sec-0003" sec-type="section"> <title>CONCLUSIONS</title> <p id="ps3950-para-0003">The ratio of catch in traps in the corner and centre of a 16‐trap array at different spacings offers a rapid preliminary assessment method for determining the potential for mass trapping. Additional knowledge of vital rates and dispersal is needed for predicting population suppression. Our approach should have value in mass trapping development. © 2014 Society of Chemical Industry</p> </sec> </abstract>