| Title: | Line-Trapping of Codling Moth (Lepidoptera: Tortricidae): A Novel Approach to Improving the Precision of Capture Numbers in Traps Monitoring Pest Density |
| Author(s): | Adams CG; McGhee PS; Schenker JH; Gut LJ; Miller JR; |
| Address: | "Department of Entomology, Michigan State University, E. Lansing, MI 48824. Department of Mathematics, Michigan State University, E. Lansing, MI 48824" |
| ISSN/ISBN: | 1938-291X (Electronic) 0022-0493 (Linking) |
| Abstract: | "This field study of codling moth, Cydia pomonella (L.), response to single versus multiple monitoring traps baited with codlemone demonstrates that precision of a given capture number is alarmingly poor when the population is held constant by releasing moths. Captures as low as zero and as high as 12 males per single trap are to be expected where the catch mode is three. Here, we demonstrate that the frequency of false negatives and overestimated positives for codling moth trapping can be substantially reduced by employing the tactic of line-trapping, where five traps were deployed 4 m apart along a row of apple trees. Codling moth traps spaced closely competed only slightly. Therefore, deploying five traps closely in a line is a sampling technique nearly as good as deploying five traps spaced widely. But line trapping offers a substantial savings in time and therefore cost when servicing aggregated versus distributed traps. As the science of pest management matures by mastering the ability to translate capture numbers into estimates of absolute pest density, it will be important to employ a tactic like line-trapping so as to shrink the troublesome variability associated with capture numbers in single traps that thwarts accurate decisions about if and when to spray. Line-trapping might similarly increase the reliability and utility of density estimates derived from capture numbers in monitoring traps for various pest and beneficial insects" |
| Keywords: | Animals Chemotaxis Dodecanol/*analogs & derivatives/pharmacology Insect Control/*methods Male *Malus/growth & development Michigan Moths/*drug effects Pheromones/*pharmacology Population Density Reproducibility of Results absolute pest density economic th; |
| Notes: | "MedlineAdams, C G McGhee, P S Schenker, J H Gut, L J Miller, J R eng Research Support, Non-U.S. Gov't Research Support, U.S. Gov't, Non-P.H.S. England 2017/09/01 J Econ Entomol. 2017 Aug 1; 110(4):1508-1511. doi: 10.1093/jee/tox147" |
