Species characterization and responses of subcortical insects to trap‐logs and ethanol in a hardwood biomass plantation. (2nd January 2015)

• Record Type: Journal Article
• Authors: Coyle, David R.; Brissey, Courtney L.; Gandhi, Kamal J. K.
• Is Part Of: Agricultural and forest entomology. Volume 17:Number 3(2015:Aug.)
• Page Start: 258
• Page End: 269
• Publication Date: 2015-01-02
• Subjects: Insect pests -- Control -- Periodicals; Agricultural pests -- Control -- Periodicals; Forest insects -- Control -- Periodicals; 632.7
• DOI: 10.1111/afe.12101
• Languages: English
• ISSNs: 1461-9555

Abstract

<abstract abstract-type="main" id="afe12101-abs-0001"> <title>Abstract</title> <p id="afe12101-para-0001"> <list list-type="order"> <list-item> <p>We characterized subcortical insect assemblages in economically important eastern cottonwood (<italic>Populus deltoides</italic> Bartr.), sycamore (<italic>Platanus occidentalis</italic> L.) and sweetgum (<italic>Liquidambar styraciflua</italic> L.) plantations in the southeastern U.S.A. Furthermore, we compared insect responses between freshly‐cut plant material by placing traps directly over cut hardwood logs (trap‐logs), traps baited with ethanol lures and unbaited (control) traps.</p> </list-item> <list-item> <p>We captured a total of 15 506 insects representing 127 species in four families in 2011 and 2013. Approximately 9% and 62% of total species and individuals, respectively, and 23% and 79% of total Scolytinae species and individuals, respectively, were non‐native to North America.</p> </list-item> <list-item> <p>We captured more Scolytinae using cottonwood trap‐logs compared with control traps in both years, although this was the case with sycamore and sweetgum only in 2013. More woodborers were captured using cottonwood and sweetgum trap‐logs compared with control traps in both years, although only with sycamore in 2013.</p> </list-item> <list-item> <p>Ethanol was an effective lure for capturing non‐native Scolytinae; however, not all non‐native species were captured using ethanol lures. <italic>Ambrosiophilus atratus</italic> (Eichhoff) and <italic>Hypothenemus crudiae</italic> (Panzer) were captured with both trap‐logs and control traps, whereas <italic>Coccotrypes distinctus</italic> (Motschulsky) and <italic>Xyleborus glabratus</italic> Eichhoff were only captured on trap‐logs.</p> </list-item> <list-item> <p>Indicator species analysis revealed that certain scolytines [e.g. <italic>Cnestus mutilatus</italic> (Blandford) and <italic>Xylosandrus crassiusculus</italic> (Motschulsky)] showed significant associations with trap‐logs or ethanol baits in poplar or sweetgum trap‐logs. In general, the species composition of subcortical insects, especially woodboring insects, was distinct among the three tree species and between those associated with trap‐logs and control traps.</p> </list-item> </list> </p> </abstract>