A Comparison of Girdled Ash Detection Trees and Baited Artificial Traps forAgrilus planipennis(Coleoptera: Buprestidae) Detection

Autor:	Rodrigo J. Mercader, Deborah G. McCullough, John M. Bedford
Rok vydání:	2013
Předmět:	Population Density Canopy Agrilus Larva Ecology biology Pilot Projects Fraxinus biology.organism_classification Insect Control Coleoptera Agronomy Insect Science Animals Female Seasons Forest insect Ecology Evolution Behavior and Systematics Buprestidae
Zdroj:	Environmental Entomology. 42:1027-1039
ISSN:	1938-2936 0046-225X 2008-2010
DOI:	10.1603/en12334
Popis:	Detection of newly established populations of Agrilus planipennis Fairmaire, the most destructive forest insect to invade the United States, remains challenging. Regulatory agencies currently rely on artificial traps, consisting of baited three-sided panels suspended in the canopy of ash (Fraxinus spp.) trees. Detection trees represent another survey option. Ash trees are girdled in spring to attract ovipositing A. planipennis females then debarked in fall to assess larval presence and density. From 2008-2010, systematic grids of detection trees and artificial traps were established across a 390-km(2) area for the SLow Ash Mortality pilot project. We compared probabilities of detection associated with detection trees and artificial traps along varying A. planipennis density proxies estimated as distance-weighted averages of larval counts (detection trees) or adult captures (traps) within 800 m of each detection tree or trap. Detection trees were consistently more likely to be positive, that is, detect A. planipennis, than traps in all three years, even when traps were placed in canopies of detection trees. Probability of detection with a single detection tree was >50% when density proxies for the area were
Databáze:	OpenAIRE
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