Publications

interactions among latitude, nematode parasitization, and female sirex nigricornis (hymenoptera: siricidae) fitness.	sirex nigricornis f. (hymenoptera: siricidae) is an innocuous pine-inhabiting woodwasp native to eastern north america, utilizing dead or dying pine trees as hosts. although s. nigricornis f. does not cause economic damage, a closely related species, sirex noctilio, was discovered in new york in 2004 and has continually spread throughout the northeastern united states and southern canada, threatening the multi-billion-dollar pine timber industry of the southeastern united states and raising inte ...	2016	27590256
growth of the sirex-parasitic nematode deladenus siricidicola on the white rot fungus amylostereum.	the kamona strain of the nematode deladenus siricidicola has been extensively used as a biological control agent against invasive sirex noctilio woodwasps in the southern hemisphere, where it sterilizes female hosts. in north america, a non-sterilizing (ns) strain of d. siricidicola, thought to have been introduced with s. noctilio, is commonly found parasitizing this invasive woodwasp. species of deladenus that parasitize sirex have a parasitic form, as well as a mycophagous form. the mycophago ...	2016	26724378
interactions among latitude, nematode parasitization, and female sirex nigricornis (hymenoptera: siricidae) fitness.	sirex nigricornis f. (hymenoptera: siricidae) is an innocuous pine-inhabiting woodwasp native to eastern north america, utilizing dead or dying pine trees as hosts. although s. nigricornis f. does not cause economic damage, a closely related species, sirex noctilio, was discovered in new york in 2004 and has continually spread throughout the northeastern united states and southern canada, threatening the multi-billion-dollar pine timber industry of the southeastern united states and raising inte ...	2016	28028099
detection and identification of amylostereum areolatum (russulales: amylostereaceae) in the mycangia of sirex nigricornis (hymenoptera: siricidae) in central louisiana.	the woodwasp sirex noctilio f. (hymenoptera: siricidae) has become established in north america. a primary tactic for the management of s. noctilio in the southern hemisphere has been the development of a biological control agent, deladenus siricidicola bedding. this nematode has a bicyclic life cycle including a mycetophagous free-living and parasitic cycle. during oviposition, female sirex woodwasps inject a symbiotic fungus. because d. siricidicola only develops well on amylostereum areolatum ...	2013	24468555
phylogenetic analysis of deladenus nematodes parasitizing northeastern north american sirex species.	the parasitic nematode deladenus siricidicola is a biological control agent of the invasive woodwasp, sirex noctilio. since the discovery of s. noctilio in pine forests of northeastern north america in 2005, a biological control program involving the kamona strain of d. siricidicola has been under consideration. however, north american pine forests have indigenous sirex spp. and likely harbor a unique assemblage of associated nematodes. we assessed phylogenetic relationships among native deladen ...	2013	23542205
natural enemies associated with sirex noctilio (hymenoptera: siricidae) and s. nigricornis in ontario, canada.	sirex noctilio f. is an exotic woodwasp now found in eastern north america where it shares natural enemies with native woodwasps of pinus spp. to study the extent to which native hymenopteran parasitoids and parasitic nematodes could affect woodwasp populations, 60 pinus trees with symptoms of s. noctilio attack were felled in 2007 and 2008 in ontario, canada. each tree bole was cut into 1-m sections that were placed in individual rearing tubes; emergence was monitored from may to november of th ...	2012	22507001
test of nonhost angiosperm volatiles and verbenone to protect trap trees for sirex noctilio (hymenoptera: siricidae) from attacks by bark beetles (coleoptera: scolytidae) in the northeastern united states.	sirex noctilio f. (hymenoptera: siricidae) is an invasive woodwasp, currently established in northeastern north america. in other regions of the world, stressed trap trees are used to monitor populations of s. noctilio and to provide inoculation points for the biological control nematode deladenus siricidicola bedding. however, the operational use of trap trees for s. noctilio in north america may be compromised by the large community of native organisms that inhabit stressed and dying pine tree ...	2010	21309230
microsatellite discovery by deep sequencing of enriched genomic libraries.	robust molecular markers such as microsatellites are important tools used to understand the dynamics of natural populations, but their identification and development are typically time consuming and labor intensive. the recent emergence of so-called next-generation sequencing raised the question as to whether this new technology might be applied to microsatellite development. following this view, we considered whether deep sequencing using the 454 life sciences/roche gs-flx genome sequencing sys ...	2009	19317665
deladenus siricidicola, bedding (neotylenchidae) parasitism evaluation in adult sirex noctilio, fabricius, 1793 (hymenoptera: siricidae).	this work aimed to evaluate the deladenus siricidicola, bedding (neotylenchidae) parasitism in adults sirex noctilio, fabricius, 1793 (hymenoptera: siricidae). timber was sampled by cutting out pieces of 0.80 m in length in sirex noctilio attacked and deladenus siricidicola inoculated pinus taeda. longs were 15-20 cm in diameter, according to the tree age. samples were packed in gauze-cages, for daily observations, till s. noctilio adults emergence. the emerged insects were transported, in plast ...	2000	11241969
biocontrol: the potential of entomophilic nematodes in insect management.	a review of the development of entomophilic nematology and a commentary on the potential of entomophilic nematodes in controlling insect pests. the paper considers some of the major contributions to our knowledge of entomophilic nematology; factors involved in insect pest management and how they are applicable to the use of nematodes; nematodes which are most promising as biological control agents; and problems to be solved to facilitate the use of entomophilic nematodes in insect management.	1980	19300702