Detection and Seasonal Abundance of Sirex nigricornis and Eriotremex formosanus (Hymenoptera: Siricidae) Using Various Lures and Trap Trees in Central Louisiana, U.S.

Johnson, Catherine; Meeker, James R.; Ross, William G.; Petty, S. D.; Bruce, Barry D.; Steiner, Chris A.

doi:10.18474/0749-8004-48.3.173

Cited by 8 publications

(11 citation statements)

References 28 publications

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“…Study of S. nigricornis will further our understanding of its biology and ecology, and aid in prediction of the temporal interactions that it, or its natural enemies, might have with S. noctilio in North America. Both S. noctilio and S. nigricornis are univoltine for most individuals in most areas of their respective rangesor, at least in areas where S. nigricornis has been studied thus far (Morgan, 1968;Ryan et al, 2012a;Johnson et al, 2013). Siricid females are facultatively parthenogenic, males develop from unfertilized eggs (i.e., arrhenotoky) (Rawlings, 1953;Morgan, 1968).…”

Section: Introductionmentioning

confidence: 99%

Predicting Sirex noctilio and S. nigricornis emergence using degree days

Haavik

Meeker

Johnson

et al. 2013

Entomologia Exp Applicata

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The study of temporal interactions between native insects and alien invaders can be facilitated by the ability to forecast adult emergence. We used field-collected adult emergence data of Sirex noctilio Fabricius (Hymenoptera: Siricidae), a woodwasp native of Eurasia that has recently invaded northeastern North America, and Sirex nigricornis Fabricius, a woodwasp native to North America, to develop and test cumulative degree-day (CDD) models. Five data sets were collected each in Ontario, Canada (S. noctilio) and Louisiana, USA (S. nigricornis) over 4 years; three data sets were used to develop models and two were used to test them. Males and females of each species were modelled separately. After testing several potential temperatures, chosen thresholds for CDD were 0°C lower threshold and 25°C upper threshold for both Sirex spp. We used a three-parameter Gompertz growth function to model Sirex spp. emergence against CDD. Models predicted 10% emergence of S. noctilio in Ontario after 1 239 and 1 280 CDD, for males (start date = 1 April; R 2 = 0.91) and females (start date = 1 April; R 2 = 0.86), respectively. Models predicted 10% emergence of S. nigricornis in Louisiana after 3 980 and 5 016 CDD, for males (start date = 1 May; R 2 = 0.83) and females (start date = 1 March; R 2 = 0.73), respectively. Cumulative degree-day models predicted 10 and 90% emergence of woodwasp populations with less error (1-13%) than they did 50% emergence (5-27%). For both Sirex spp., male emergence began a few days before and concluded at about the same time as that of females. In southern Ontario, models predict that S. noctilio adults will be in flight between 1 015 and 2 430 CDD (1 April start date for CDD; from early-July until mid-September). In Louisiana, models predict that S. nigricornis adults will be in flight between 3 854 and 4 700 CDD (1 May start date for CDD; from early-October until late-November).

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Section: Introductionmentioning

confidence: 99%

Predicting Sirex noctilio and S. nigricornis emergence using degree days

Haavik

Meeker

Johnson

et al. 2013

Entomologia Exp Applicata

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“…Intercept traps baited with the commercially available Sirex lure caught more S. nigricornis than unbaited traps, and those baited with pine foliage and log billets caught even more (Barnes et al 2014). Johnson et al (2013) found that intercept traps baited with semiochemicals (e.g., Sirex lure ϩ ipsenol ϩ ipsdienol) generally caught more S. nigricornis than trap trees. Semiochemicals are important for attracting S. noctilio as well (Bö rö czky et al 2009Cooperband et al 2012), but an effective combination and quantity of attractants has yet to be found.…”

Section: Discussionmentioning

confidence: 94%

“…Panel and funnel traps were compared for effectiveness at capturing S. nigricornis in Louisiana in 2011. Traps were Þrst placed in a recently thinned loblolly pine, Pinus taeda L., plantation on 19 October and moved to a newly thinned site containing fresher slash (i.e., green pine tops) on 3 November (Catahoula Ranger District) in anticipation of peak ßight (Johnson et al 2013). All traps were placed within the forest interior, at least 20 m from an edge.…”

Section: Methodsmentioning

confidence: 99%

“…Studies have tested and improved lures for woodwasps (Siricidae) , Cooperband et al 2012, Coyle et al 2012, Johnson et al 2013, Barnes et al 2014), but information on effective trap type is limited to studies of related species (McIntosh et al 2001, Costello et al 2008, Barnes et al 2014. This is probably not because efforts have been lacking, but more likely because of difÞculty in comparing low S. noctilio catch among different traps.…”

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confidence: 99%

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Type of Intercept Trap Not Important for Capturing Female <I>Sirex noctilio</I> and <I>S. nigricornis</I> (Hymenoptera: Siricidae) in North America

et al. 2014

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Current detection tools for Sirex noctilio F. (Hymenoptera Siricidae) in North America are poor. To determine the importance of intercept trap type for capturing females of S. noctilio and its native congener, Sirex nigricornis F., in eastern North America, we report on seven trap comparison studies from different years and geographic locations. Among studies, total numbers of S. noctilio captured were low (mean of < or = 1 wasp per trap). Total numbers of S. nigricornis caught were generally greater, and ranged from a mean of 1-13 wasps per trap. Nearly all studies found no significant differences among intercept trap types in the number of woodwasps caught. For future studies, we recommend that either panel or 12-unit Lindgren funnel traps be used to catch S. noctilio or S. nigricornis in eastern North America.

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“…Late October to early December is the peak ßight period of the most commonly collected siricid in this study (S. nigricornis); treating trap trees with Dicamba in late September could have been too early to sample our native species. However, Johnson et al (2013) demonstrated the relative ineffectiveness of herbicide created trap trees for attracting S. nigricornis in Louisiana, regardless of timing (e.g., mid-August, early September, mid-October, and early November).…”

Section: Discussionmentioning

confidence: 97%

Trapping Techniques for Siricids and their Parasitoids (Hymenoptera: Siricidae and Ibaliidae) in the Southeastern United States

Barnes

Meeker

Johnson

et al. 2014

Annals of the Entomological Society of America

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The recent introduction of Sirex noctilio F. (Hymenoptera: Siricidae) into North America has raised interest in native siricids and their parasitoids to better understand the potential impact of S. noctilio. In the southeastern United States, we assessed various techniques to capture native siricids and their parasitoids using traps, lures, and trap trees. During 2009–2011, in total, 2,434 wasps were caught including Eriotremex formosanus (Matsumura), Sirex nigricornis (F.), Tremex columba (L.), and Urocerus cressoni (Norton) (Siricidae), and Ibalia leucospoides ensiger Norton (Hymenoptera: Ibaliidae). Traps and trap trees, respectively, captured 14 and 86% of total siricids and hymenopteran parasitoids. Majority of siricids (76%) were caught in Louisiana, where 486 I. l. ensiger (28% parasitism rate) were also reared from trap trees. The Sirex lure alone and Sirex lure with ethanol captured two to five times greater numbers of siricids than unbaited traps. Trap types had no effect on catches of siricids. Fewer siricids were caught in traps baited with ethanol alone than in those baited with other lures in Georgia. We caught three to four times greater numbers of S. nigricornis in traps with fresh pine billets (with foliage) as a lure than traps baited with Sirex lure in Louisiana. More S. nigricornis and I. l. ensiger emerged from cut and felled trap trees created in early rather than late November; these trees also had 14 times greater emergence than those treated with Dicamba. Our results indicate that use of host material and timing may be important for monitoring populations and communities of siricids and their parasitoid species in southern pine forests.

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Detection and Seasonal Abundance of Sirex nigricornis and Eriotremex formosanus (Hymenoptera: Siricidae) Using Various Lures and Trap Trees in Central Louisiana, U.S.

Cited by 8 publications

References 28 publications

Predicting Sirex noctilio and S. nigricornis emergence using degree days

Predicting Sirex noctilio and S. nigricornis emergence using degree days

Type of Intercept Trap Not Important for Capturing Female <I>Sirex noctilio</I> and <I>S. nigricornis</I> (Hymenoptera: Siricidae) in North America

Trapping Techniques for Siricids and their Parasitoids (Hymenoptera: Siricidae and Ibaliidae) in the Southeastern United States

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