2018
Cryptic east-west divergence and molecular diagnostics for two species of silver flies (Diptera: Chamaemyiidae: Leucopis) from North America being evaluated for biological control of hemlock woolly adelgid
Havill N, Gaimari S, Caccone A. Cryptic east-west divergence and molecular diagnostics for two species of silver flies (Diptera: Chamaemyiidae: Leucopis) from North America being evaluated for biological control of hemlock woolly adelgid. Biological Control 2018, 121: 23-29. DOI: 10.1016/j.biocontrol.2018.02.004.Peer-Reviewed Original ResearchEastern North AmericaNorth AmericaPacific NorthwestBiological controlHemlock Woolly AdelgidEast-west divergenceMitochondrial COI geneBiological control agentsEastern United StatesDNA sequence dataLeucopis argenticollisPrey associationsWoolly AdelgidAdelgid speciesAdelgidWestern lineageGenetic diversityNuclear genesCOI geneHemlockDistinct lineagesControl agentsBeneficial genotypesSequence dataWestern hemlock
2016
Ancient and modern colonization of North America by hemlock woolly adelgid, Adelges tsugae (Hemiptera: Adelgidae), an invasive insect from East Asia
Havill N, Shiyake S, Lamb Galloway A, Foottit R, Yu G, Paradis A, Elkinton J, Montgomery M, Sano M, Caccone A. Ancient and modern colonization of North America by hemlock woolly adelgid, Adelges tsugae (Hemiptera: Adelgidae), an invasive insect from East Asia. Molecular Ecology 2016, 25: 2065-2080. PMID: 26880353, DOI: 10.1111/mec.13589.Peer-Reviewed Original ResearchConceptsWestern North AmericaEastern North AmericaNorth AmericaAdelges tsugaeHost specializationExtreme genetic bottleneckWorldwide genetic structurePleistocene glacial periodsSouthern JapanMitochondrial COI sequencesGlacial periodSpecies traitsAdelgid invasionApproximate Bayesian computationInvasive insectsHemlock speciesContinental scaleInvasion pathwaysTsuga speciesGenetic bottleneckGenetic structureHost treesEndemic lineagesInvasive pestHemlock trees
2011
DNA barcodes and molecular diagnostics to distinguish an introduced and native Laricobius (Coleoptera: Derodontidae) species in eastern North America
Davis G, Havill N, Adelman Z, Caccone A, Kok L, Salom S. DNA barcodes and molecular diagnostics to distinguish an introduced and native Laricobius (Coleoptera: Derodontidae) species in eastern North America. Biological Control 2011, 58: 53-59. DOI: 10.1016/j.biocontrol.2011.03.016.Peer-Reviewed Original ResearchBiological control agentsDNA barcodesL. nigrinusControl agentsDistinctive morphological charactersSpecies-specific assaysHemlock Woolly AdelgidPowerful identification toolEastern North AmericaMorphological charactersRestriction length polymorphismDNA sequencesLaricobius rubidusNucleotide differencesLaricobius speciesMolecular diagnosticsReal-time PCRWoolly AdelgidCoastal populationsLaricobius nigrinusNigrinusAvailable lab equipmentLength polymorphismSpeciesEastern United States
2006
Mitochondrial DNA from Hemlock Woolly Adelgid (Hemiptera: Adelgidae) Suggests Cryptic Speciation and Pinpoints the Source of the Introduction to Eastern North America
Havill N, Montgomery M, Yu G, Shiyake S, Caccone A. Mitochondrial DNA from Hemlock Woolly Adelgid (Hemiptera: Adelgidae) Suggests Cryptic Speciation and Pinpoints the Source of the Introduction to Eastern North America. Annals Of The Entomological Society Of America 2006, 99: 195-203. DOI: 10.1603/0013-8746(2006)099[0195:mdfhwa]2.0.co;2.Peer-Reviewed Original ResearchEastern North AmericaWestern North AmericaMitochondrial DNANatural rangeA. tsugaeNorth AmericaCryptic speciationMitochondrial lineagesHemlock Woolly AdelgidTsuga speciesPhylogenetic analysisSingle haplotypeT. sieboldiiIntroduced pestMultiple haplotypesAdelges tsugae AnnandAdelgidWoolly AdelgidGeographic originMolecular methodsSouthern JapanLineagesHigher elevationsSevere mortalityT. diversifolia