Parasitism of Sirex noctilio by non-sterilizing Deladenus siricidicola in northeastern North America

Kroll, Stefanie A.; Hajek, Ann E.; Morris, E. Erin; Long, Stefan J.

doi:10.1016/j.biocontrol.2013.08.005

Cited by 36 publications

(34 citation statements)

References 37 publications

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“…material 1: B). Both species can be highly variable in size which depends on sex, parasitism and larval developmental conditions (Ryan and Hurley 2012;Kroll et al 2013;Haavik et al 2016a), but in North American areas of sympatry, S. noctilio adults are usually slightly larger and carry more eggs than S. nigricornis (Haavik et al 2016a;AEH and JCH unpublished data). While S. noctilio is more aggressive and can attack healthier trees, both species will oviposit in pines of poor vigor or that are recently dead (see Suppl.…”

Section: Introductionmentioning

confidence: 99%

Comparing functional traits and abundance of invasive versus native woodwasps

Hajek¹,

Henry²,

Standley³

et al. 2017

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Functional traits are useful for comparing the resource use of invasive and native species, with goals of identifying resource overlap to predict competitive interactions. The invasion of northeastern North America by the woodwasp Sirex noctilio has resulted in competition with the native congeneric Sirex nigricornis for suppressed and weakened pines. We compared sizes of adults, venom glands, fecundity, tree species use, voltinism and abundance of the invasive woodwasp S. noctilio with the native S. nigricornis in northeastern North American pines. Rearing adults from attacked pines showed that these species used the same tree species but S. noctilio were far more abundant, especially with increasing time since establishment. Adults of the invasive S. noctilio were larger than S. nigricornis, female S. noctilio had larger glands carrying phytotoxic venom in relation to body size, average-sized S. noctilio females carried more eggs, and S. noctilio developed faster than S. nigricornis. Sirex noctilio was the dominant woodwasp infesting suppressed pines in our study areas. We hypothesize that the future abundance of S. nigricornis could depend in part on the availability of wood for oviposition by this native that is not available or acceptable to the earlier-emerging S. noctilio.

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Section: Introductionmentioning

confidence: 99%

Comparing functional traits and abundance of invasive versus native woodwasps

Hajek¹,

Henry²,

Standley³

et al. 2017

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“…Mlonyeni et al (78) showed that this has resulted in highly homozygous nematode populations across these disparate areas, most likely as a result of the repeated bottleneck and inbreeding events resulting from the transfer of relatively small numbers of genetically related nematodes during subculturing. The nematode has also recently been reported from North America (62,65,77,125), where two distinct "types" have been …”

Section: Admixture: Interbreeding Between Previously Isolates Populatmentioning

confidence: 87%

“…Bedding (6) reported that egg parasitism is specific to wasp and nematode noctilio (62,77,125) (Figure 2). These same North American strains, however, sterilize South African S. noctilio (B.…”

Section: Fidelity and Specificitymentioning

confidence: 99%

“…Slippers, personal observation). Apart from killing the host, the nematode also has indirect impacts on the fitness of the wasp population, such as female size, fecundity, and energy reserves, which are likely strain specific (8,24,62).…”

Section: Fidelity and Specificitymentioning

confidence: 99%

“…The recent discovery of A. areolatum associated with native siricid species, as well as the occurrence of other strains of this nematode species in North America, appears to make this an unnecessary risk (62,65,77,125). A suite of other natural enemies associated with native siricids is also attacking S. noctilio in North America (4,27,37,66,128).…”

Section: Sirex Population Growthmentioning

confidence: 99%

See 2 more Smart Citations

SirexWoodwasp: A Model for Evolving Management Paradigms of Invasive Forest Pests

Slippers

Hurley

Wingfield

2015

Annu. Rev. Entomol.

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The Sirex woodwasp, Sirex noctilio, and its fungal mutualist, Amylostereum areolatum, together constitute one of the most damaging invasive pests of pine. Despite a century of research and well-established management programs, control remains unpredictable and spread continues to new areas. Variable success in managing this pest has been influenced by complex invasion patterns, the multilayered nature of biological interactions, the varying local ecologies, and microevolutionary population processes in both the biocontrol organisms and in the wasps. Recent research findings are challenging the historical perspectives on methods to manage the Sirex woodwasp, calling for management programs to incorporate the variable local dynamics affecting this pest complex. In this regard, the Sirex woodwasp provides a superb model to illustrate the need for a different approach to develop efficient and sustainable management tools to deal with the growing and global nature of pest invasions in forests and plantations.

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Forest Insect–Natural Enemy Interactions

Grégoire

Gould²

2023

Forest Entomology and Pathology

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As illustrated in several other chapters of this book, “forest insects”, including those linked to woody plants growing outside the forest environment stricto sensu (cities, field margins, hedgerows, river banks, roads, railway tracks, etc.), play various ecological and economic roles (pests, biocontrol agents, pollinators, recyclers of nutrients, key components of trophic webs, etc.). Often, the role of natural enemies in intricate food webs can be extremely complex and may change according to the presence and prevalence of other food web components.

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Parasitism of Sirex noctilio by non-sterilizing Deladenus siricidicola in northeastern North America

Cited by 36 publications

References 37 publications

Comparing functional traits and abundance of invasive versus native woodwasps

Comparing functional traits and abundance of invasive versus native woodwasps

SirexWoodwasp: A Model for Evolving Management Paradigms of Invasive Forest Pests

Forest Insect–Natural Enemy Interactions

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