« Previous AbstractReinvestigation of oak leaf roller sex pheromone components and the hypothesis that they vary with diet    Next Abstract"Spatial variability of volatile organic compound concentrations in Sarnia, Ontario, Canada" »

J Econ Entomol

Title:		Sharpening the Precision of Pest Management Decisions: Assessing Variability Inherent in Catch Number and Absolute Density Estimates Derived from Pheromone-Baited Traps Monitoring Insects Moving Randomly
Author(s):		Miller JR;
Address:		"Professor Emeritus Department of Entomology, Michigan State University, Williamston, MI"
Journal Title:		J Econ Entomol
Year:		2020
Volume:		113
Issue:		5
Page Number:		2052 - 2060
DOI:		10.1093/jee/toaa152
ISSN/ISBN:		1938-291X (Electronic) 0022-0493 (Linking)
Abstract:		"During a trapping study interval, each target insect is either caught or not caught. Therefore, the current analysis treats trapping as a binomial process. Data from a binomial calculator, along with computer simulations of random walkers, documented that the inherent variance associated with estimates of absolute population density generated by a single catch number in a pheromone-baited monitoring trap becomes very high when catch probability averaged across the trap's sampling area falls below 0.02, as is the case for most insect trapping systems operating in the open field. The imprecision associated with interpretations of single catch numbers renders many current pest management decisions risky and unsatisfactory. Here we reinforce how single-trap, multiple-release experiments can and should be used to measure catch probability, plume reach, and trap sampling area. When catch probability lies in the danger zone below 0.02, steps are suggested for how multiple traps might be deployed to raise composite catch probability to a level where estimates of absolute pest density become reliable. Heat transfer is offered as an appropriate conceptual model for the mechanics of trapping. A call is made for a radical rethinking in the designs of insect monitoring traps in light of their significant current deficits highlighted by this study"
Keywords:		Animals *Insect Control Insecta *Pheromones Population Density Catch probability absolute pest density micro-trap monitoring trap design sampling error;
Notes:		"MedlineMiller, James R eng England 2020/08/06 J Econ Entomol. 2020 Oct 16; 113(5):2052-2060. doi: 10.1093/jee/toaa152"