[1] Ctr Sustainable Pest & Dis Management, Harpenden AL5 4JQ, Herts, England
[2] Univ Neuchatel, Lab Fundamental & Appl Res Chem Ecol, CH-2009 Neuchatel, Switzerland
[3] Univ Neuchatel, Chem Analyt Serv Swiss Plant Sci Web, CH-2009 Neuchatel, Switzerland
[4] Univ Jaume 1, Dept Expt Sci, Plant Physiol Sect, Castellon de La Plana 12071, Spain
[5] Tech Univ Munich, D-85354 Freising Weihenstephan, Germany
[6] Univ Utrecht, Fac Sci, Inst Environm Biol, NL-3508 TB Utrecht, Netherlands
[7] Univ Sheffield, Dept Anim & Plant Sci, Sheffield S10 2TN, S Yorkshire, England