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
The New Zealand Institute for Plant and Food Research Limited, Christchurch, New Zealand.
School of Biological Sciences, University of Auckland, New Zealand.
Pest Manag Sci. 2015 Oct;71(10):1452-61. doi: 10.1002/ps.3950. Epub 2014 Dec 30.
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, Epiphyas postvittana), Diptera (apple leaf curling midge, Dasineura mali) and Homoptera (citrophilous mealybug, Pseudococcus calceolariae), compared with a kairomone for New Zealand flower thrips (Thrips obscuratus).
The ratio of catch in corner traps to catch in centre traps was 25:1 at 750 D. mali traps ha(-1) , and was still ∼5:1 at 16 traps ha(-1) , 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 P. calceolariae, but less so for E. postvittana. No trap competition was observed at 4 m spacings with the kairomone for T. obscuratus.
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.
新型引诱剂的鉴定可为大规模诱捕技术的发展提供机遇，但需要标准筛选方法来加快这一进程。我们基于对不同间距的4×4诱捕器阵列中的诱捕干扰进行量化，开发了一种简单方法。我们讨论了鳞翅目（浅褐苹果蛾，Epiphyas postvittana）、双翅目（苹果卷叶瘿蚊，Dasineura mali）和同翅目（嗜果粉蚧，Pseudococcus calceolariae）性信息素的结果，并与新西兰花蓟马（Thrips obscuratus）的一种利它素进行了比较。
在每公顷750个苹果卷叶瘿蚊诱捕器时，角落诱捕器捕获量与中心诱捕器捕获量之比为25:1，在每公顷16个诱捕器时仍约为5:1，这表明即使在如此低的诱捕器密度下也存在诱捕干扰。在嗜果粉蚧的16个诱捕器阵列中，近距离（<5米）时性信息素诱芯的诱捕竞争明显，但浅褐苹果蛾的情况则不太明显。对于新西兰花蓟马的利它素，在4米间距时未观察到诱捕竞争。
不同间距下16个诱捕器阵列中角落和中心诱捕器的捕获量之比，为确定大规模诱捕潜力提供了一种快速初步评估方法。预测种群抑制还需要有关生命率和扩散的更多知识。我们的方法在大规模诱捕技术开发中应具有价值。© 2014化学工业协会。
