Publications by A.G. Raske http://cfs.nrcan.gc.ca/authors/read/11032?lang=en_CA Publications by A.G. Raske en-ca 2000-08-26 00:00:00 MST 2000-08-26 00:00:00 MST webmaster@nofc.cfs.nrcan.gc.ca Mitochondrial DNA sequence variation among populations and host races of Lambdina fiscellaria (Gn.) (Lepidoptera: Geometridae) http://cfs.nrcan.gc.ca/publications?id=5298 The hemlock looper, Lambdina fiscellaria (Gn.), is a recurring major forest pest that is widely distributed in North America. Three subspecies (L. f. fiscellaria, L. f. lugubrosa (Hulst) and L. f. somniaria (Hulst) ) have been recognized based on larval host or adult pheromone differences, but no consistent morphological differences have been reported. To clarify their taxonomic status, we surveyed mitochondrial DNA (mtDNA) sequence and restriction site variation in two protein coding genes, cytochrome oxidase I and II (COI and COII), in populations across the range of L. fiscellaria. In addition to variation in COI and COII, we found an intergenic spacer region of 20-23 bp located between the tRNA tyrosine gene and the start of COI. Of the 141 specimens of L. fiscellaria assayed, 137 were grouped into two distinct mtDNA lineages, one of which was disproportionately associated with eastern populations and one with western populations. However, single specimens and two populations in eastern Canada had mtDNA resembling that of western populations. Three divergent and rare haplotypes had basal affinities to the two common lineages. The two major lineages of L. fiscellaria were diverged by approximately 2% from each other, as well as from the mtDNA of two outgroup species, L. athasaria (Walker) and L. pellucidaria (G. & R.). The two outgroup species had essentially the same mtDNA and may be conspecific. We interpret the pattern of mtDNA variation within L. fiscellaria as indicating genetic polymorphism within a single species without clear subspecific divisions, rather than evidence of multiple cryptic species. Sat, 26 Aug 2000 http://cfs.nrcan.gc.ca/publications?id=5298 Bibliographie annotée sur l’arpenteuse de la pruche, Lambdina fiscellaria (Guen.) (Lepidoptera : Geometridae) http://cfs.nrcan.gc.ca/publications?id=20179 Fri, 28 Jun 2002 http://cfs.nrcan.gc.ca/publications?id=20179 Bibliographie annotée sur l'arpenteuse de la pruche, Lambdina fiscellaria (Guen.) (Lepidoptera : Geometridae). http://cfs.nrcan.gc.ca/publications?id=16740 Tue, 22 Aug 2000 http://cfs.nrcan.gc.ca/publications?id=16740 Bionomics of the four-eyed spruce bark beetle, Polygraphus rufipennis (Kirby) (Col., Scolytidae) in Newfoundland II. Host colonization sequence http://cfs.nrcan.gc.ca/publications?id=6014 Fri, 21 Jul 2000 http://cfs.nrcan.gc.ca/publications?id=6014 Bionomics of the four-eyed spruce bark beetle, Polygraphus rufipennis (Kirby) (Col., Scolytidae) in Newfoundland I. Emergence and flight patterns http://cfs.nrcan.gc.ca/publications?id=6015 Fri, 21 Jul 2000 http://cfs.nrcan.gc.ca/publications?id=6015 Incidence and impact of Polygraphus rufipennis (Coleoptera: Scolytidae) in Newfoundland http://cfs.nrcan.gc.ca/publications?id=6016 Fri, 21 Jul 2000 http://cfs.nrcan.gc.ca/publications?id=6016 Annotated bibliography of the hemlock looper, Lambdina fiscellaria (Guen.) (Lepidoptera: Geometridae) http://cfs.nrcan.gc.ca/publications?id=6856 Fri, 21 Jul 2000 http://cfs.nrcan.gc.ca/publications?id=6856 Hemlock looper, Lambdina fiscellaria http://cfs.nrcan.gc.ca/publications?id=22269 Wed, 09 Jul 2003 http://cfs.nrcan.gc.ca/publications?id=22269 Host and vector surveys for the pinewood nematode, Bursaphelenchus xylophilus (Steiner and Buhrer) Nickle (Nematoda: Aphelenchoididae) in Canada http://cfs.nrcan.gc.ca/publications?id=20185 Tue, 02 Jul 2002 http://cfs.nrcan.gc.ca/publications?id=20185 Forest Insect and Disease Conditions in Newfoundland and Labrador in 1990 http://cfs.nrcan.gc.ca/publications?id=6841 Fri, 21 Jul 2000 http://cfs.nrcan.gc.ca/publications?id=6841 Forest insect and disease conditions in Newfoundland and Labrador in 1991 http://cfs.nrcan.gc.ca/publications?id=6846 Fri, 21 Jul 2000 http://cfs.nrcan.gc.ca/publications?id=6846 The effectiveness of Bacillus thuringiensis, diflubenzuron and fenitrothion against the hemlock looper, Lambdina fiscellaria, in Newfoundland in 1987 http://cfs.nrcan.gc.ca/publications?id=6837 Fri, 21 Jul 2000 http://cfs.nrcan.gc.ca/publications?id=6837 Efficacy of oil-based formulations of Bacillus thuringiensis Berliner var. kurstaki against the hemlock looper, Lambdina fiscellaria fiscellaria (Guen.) (Lepidoptera: Geometridae) http://cfs.nrcan.gc.ca/publications?id=22663 Thu, 31 Jul 2003 http://cfs.nrcan.gc.ca/publications?id=22663 Fenitrothion deposits on simulated and live fir foliage following aerial spraying of two formulations. http://cfs.nrcan.gc.ca/publications?id=22268 Wed, 09 Jul 2003 http://cfs.nrcan.gc.ca/publications?id=22268 The eastern larch beetle, another threat to our forests (Coleoptera: Scolytidae) http://cfs.nrcan.gc.ca/publications?id=11256 Isolated infestations of the eastern larch beetle, Dendroctonus simplex LeConte, have been reported in North America for over 100 years. Historically, this species has been considered a secondary pest of tamarack, Larix laricina (Du Roi) K. Koch, infesting only weakened or recently felled host material. However, recent widespread outbreaks of this bark beetle in northeastern North America and Alaska suggest that the species can be a primary killer of trees. More than 1.4 million m3 of tamarack was killed in the Atlantic provinces of Canada from 1976 to 1986. No damage estimates are available for Quebec and the United States. Fire, flooding, drought and defoliation by insects are often important agents predisposing tamarack to beetle attack and fostering localized build-up of D. simplex populations which then spread to healthy stands resulting in a widespread outbreak. Tue, 22 Aug 2000 http://cfs.nrcan.gc.ca/publications?id=11256 A history of the eastern larch beetle, Dendroctonus Simplex (Coleoptera: Scolytidae) in North America http://cfs.nrcan.gc.ca/publications?id=11258 Tue, 22 Aug 2000 http://cfs.nrcan.gc.ca/publications?id=11258 Spray atomization and deposition patterns of one Newtonian and two pseudoplastic formulations after aerial application over a mature conifer forest in Newfoundland http://cfs.nrcan.gc.ca/publications?id=22476 Mon, 21 Jul 2003 http://cfs.nrcan.gc.ca/publications?id=22476 Evaluation of diflubenzuron as a control agent for hemlock looper (Lepidoptera: Geometridae) http://cfs.nrcan.gc.ca/publications?id=22296 Thu, 10 Jul 2003 http://cfs.nrcan.gc.ca/publications?id=22296 Mortality factors and life tables of the eastern larch beetle, Dendroctonus simplex (Coleoptera: Scolytidae), in Newfoundland http://cfs.nrcan.gc.ca/publications?id=11259 Mortality of Dendroctonus simplex LeConte was investigated near St. John's, Newfoundland, in 1983, where two broods were produced. The fourth larval instar had the highest mortality at 18.9% and pupae the lowest at 2.9%. Percent mortality of the third and fourth larval instars was significantly less in the lower meter of the bole than at 2.5-3.5 m and 5.0-6.0 m above ground. Egg mortality within the second brood was 69% higher than within the first brood. Total mortality was 79% and 82% for first and second broods, respectively. Generally, pathogens caused the highest mortality among eggs, second-instar larvae, and pupae; resinosis among first-instar larvae; and parasitoids among third- and fourth-instar larvae. Prewinter mortality among new brood adults was 6.4% and 8.7% for the first and second broods, respectively. Tue, 22 Aug 2000 http://cfs.nrcan.gc.ca/publications?id=11259 Annotated Bibliography of the eastern larch beetle, Dendroctonus simplex LeConte (Coleoptera: Scolytidae) http://cfs.nrcan.gc.ca/publications?id=6824 Fri, 21 Jul 2000 http://cfs.nrcan.gc.ca/publications?id=6824 Effect of formulation properties on ground and foliar deposits of two insecticides in flushed and one-year-old balsam fir needles following aerial application. http://cfs.nrcan.gc.ca/publications?id=22529 Thu, 24 Jul 2003 http://cfs.nrcan.gc.ca/publications?id=22529 Effect of application rate on droplet size spectra and deposit characteristics of Dimilin spray mixtures in an aerial spray trial. http://cfs.nrcan.gc.ca/publications?id=22467 Mon, 21 Jul 2003 http://cfs.nrcan.gc.ca/publications?id=22467 Efficacy of various Bacillus thuringiensis Berliner var. kurstaki formulations and dosages in the field against the hemlock looper, Lambdina fiscellaria fiscellaria (Guen.) (Lepidoptera: Geometridae), in Newfoundland http://cfs.nrcan.gc.ca/publications?id=20289 Thu, 18 Jul 2002 http://cfs.nrcan.gc.ca/publications?id=20289 Emergence, host attack, and overwintering behavior of the eastern larch beetle, Dendroctonus Simplex LeConte (Coleoptera: Scolytidae), in Newfoundland http://cfs.nrcan.gc.ca/publications?id=11257 Tue, 22 Aug 2000 http://cfs.nrcan.gc.ca/publications?id=11257 Reproduction and development of the eastern larch beetle, Dendroctonus Simplex LeConte (Coleoptera: Scolytidae), in Newfoundland http://cfs.nrcan.gc.ca/publications?id=11260 Tue, 22 Aug 2000 http://cfs.nrcan.gc.ca/publications?id=11260 The Effectiveness of Diflubenzuron and Fenitrothion against the Eastern Hemlock Looper, Lambdina Fiscellaria Fiscellaria, in Newfoundland in 1986 http://cfs.nrcan.gc.ca/publications?id=6821 Fri, 21 Jul 2000 http://cfs.nrcan.gc.ca/publications?id=6821 The effectiveness of Bacillus thuringiensis, Dimilin, Sumithion and Matacil against the Hemlock Looper, Lambdina fiscellaria fiscellaria, in Newfoundland in 1985 http://cfs.nrcan.gc.ca/publications?id=20202 Fri, 05 Jul 2002 http://cfs.nrcan.gc.ca/publications?id=20202 The status of the spruce budworm in Newfoundland and Labrador in 1983-1985 http://cfs.nrcan.gc.ca/publications?id=20205 Fri, 05 Jul 2002 http://cfs.nrcan.gc.ca/publications?id=20205 The status of the spruce budworm in Newfoundland and Labrador in 1982 http://cfs.nrcan.gc.ca/publications?id=20206 Fri, 05 Jul 2002 http://cfs.nrcan.gc.ca/publications?id=20206 Decline and mortality of black spruce caused by spruce budworm defoliation and secondary organisms http://cfs.nrcan.gc.ca/publications?id=6794 Fri, 21 Jul 2000 http://cfs.nrcan.gc.ca/publications?id=6794 Vulnerability rating of forests in Newfoundland to spruce budworm damage http://cfs.nrcan.gc.ca/publications?id=6797 Fri, 21 Jul 2000 http://cfs.nrcan.gc.ca/publications?id=6797 Eastern larch beetle being studied http://cfs.nrcan.gc.ca/publications?id=20372 Thu, 25 Jul 2002 http://cfs.nrcan.gc.ca/publications?id=20372 The status of the spruce budworm in Newfoundland in 1980 http://cfs.nrcan.gc.ca/publications?id=6766 Fri, 21 Jul 2000 http://cfs.nrcan.gc.ca/publications?id=6766 The status of the spruce budworm in Newfoundland in 1981 http://cfs.nrcan.gc.ca/publications?id=6768 Fri, 21 Jul 2000 http://cfs.nrcan.gc.ca/publications?id=6768 Review of the spruce budworm outbreak in Newfoundland - its control and forest management implications http://cfs.nrcan.gc.ca/publications?id=6763 Fri, 21 Jul 2000 http://cfs.nrcan.gc.ca/publications?id=6763 Effects of aerial application of matacil on larval and pupal parasites of the eastern spruce budworm, Choristoneura Fumiferana (Lepidoptera: Tortricidae) http://cfs.nrcan.gc.ca/publications?id=20209 Mon, 08 Jul 2002 http://cfs.nrcan.gc.ca/publications?id=20209 The effects of fenitrothion, matacil, and Bacillus thuringiensis plus orthene on larval parasites of the spruce budworm, Choristoneura fumiferana (Lepidoptera: Tortricidae) http://cfs.nrcan.gc.ca/publications?id=6742 Fri, 21 Jul 2000 http://cfs.nrcan.gc.ca/publications?id=6742 Cold-hardiness of first instar larvae of the forest tent caterpillar, Malacosoma disstria (Lepidoptera: Lasiocampidae) http://cfs.nrcan.gc.ca/publications?id=23458 Fri, 28 Nov 2003 http://cfs.nrcan.gc.ca/publications?id=23458 Wood borer control in spruce logs with P-Dichlorobenzene and plastic sheeting (Coleoptera: Cerambycidae) http://cfs.nrcan.gc.ca/publications?id=23459 Fri, 28 Nov 2003 http://cfs.nrcan.gc.ca/publications?id=23459 Introduction of the Parasites Campoplex spp. into Newfoundland for the Biological Control of the Birch Casebearer http://cfs.nrcan.gc.ca/publications?id=6666 Fri, 21 Jul 2000 http://cfs.nrcan.gc.ca/publications?id=6666 Intra-tree Distribution of Late-instar Birch Casebearer Larvae on White Birch http://cfs.nrcan.gc.ca/publications?id=6683 Fri, 21 Jul 2000 http://cfs.nrcan.gc.ca/publications?id=6683 Notes on the biology of Tetropium parvalum (Coleoptera: Cerambycidae) in Alberta http://cfs.nrcan.gc.ca/publications?id=31157 Mon, 18 Jan 2010 http://cfs.nrcan.gc.ca/publications?id=31157 Tetropium parvulum elevated to species rank and contrasted to T. cinnamopterum in morphology and host preference (Coleoptera: Cerambycidae) http://cfs.nrcan.gc.ca/publications?id=23699 Wed, 14 Jan 2004 http://cfs.nrcan.gc.ca/publications?id=23699 Taxonomic relationship between Monochamus scutellatus and M. oregonensis (Coleoptera: Cerambycidae) http://cfs.nrcan.gc.ca/publications?id=23700 Wed, 14 Jan 2004 http://cfs.nrcan.gc.ca/publications?id=23700 Immature stages, genitalia, and notes on the biology of Coenopoeus palmeri (Coleoptera: Cerambycidae) http://cfs.nrcan.gc.ca/publications?id=23751 Tue, 27 Jan 2004 http://cfs.nrcan.gc.ca/publications?id=23751 Immature forms, genitalia, and notes on the bilogy of Anelaphus albofasciatus Linnell http://cfs.nrcan.gc.ca/publications?id=23752 Tue, 27 Jan 2004 http://cfs.nrcan.gc.ca/publications?id=23752 Biology and control of Monochamus and Tetropium, the economic wood borers of Alberta (Coleoptera: Cerambycidae) http://cfs.nrcan.gc.ca/publications?id=12051 Tue, 22 Aug 2000 http://cfs.nrcan.gc.ca/publications?id=12051 Multiple sex chromosomes and configuration polymorphism in the Monochamus scutellatus-oregonensis complex (Coleoptera: Cerambycidae) http://cfs.nrcan.gc.ca/publications?id=23841 Fri, 06 Feb 2004 http://cfs.nrcan.gc.ca/publications?id=23841 Sequential sampling plan for larvae of Monochamus in lodgepole pine logs http://cfs.nrcan.gc.ca/publications?id=23854 Fri, 06 Feb 2004 http://cfs.nrcan.gc.ca/publications?id=23854 Sequential sampling plan for determining infestation and damage levels of Monochamus (Coleoptera: Cerambycidae) woodborers in decked lodgepole pine logs in Alberta http://cfs.nrcan.gc.ca/publications?id=23099 Thu, 30 Oct 2003 http://cfs.nrcan.gc.ca/publications?id=23099 Insect families common under bark in Alberta - annotated checklist and keys http://cfs.nrcan.gc.ca/publications?id=23087 Wed, 29 Oct 2003 http://cfs.nrcan.gc.ca/publications?id=23087