Johns, R.C.
-
Nontarget impacts of insecticide-based population control of eastern spruce budworm (Lepidoptera: Tortricidae) on nontarget caterpillar communities and parasitism. 2023. Glaus, V., Nisole, A., Edwards, S., Bélanger, S., Johns, R., Djoumad, A., Martel, V. The Canadian Entomologist, 155, E8.
Glaus, V.; Nisole, A.; Edwards, S; Bélanger, S.; Johns, R.C.; Djoumad, A.; Cusson, M.; Fournier, V.; Martel, V.
Year: 2023
Catalog ID: 40884
Issued by: Laurentian Forestry Centre
Availability: PDF (request by e-mail)
-
The Use of UAS to Release the Egg Parasitoid Trichogramma spp. (Hymenoptera: Trichogrammatidae) Against an Agricultural and a Forest Pest in Canada. 2021. Martel, V.; Johns, R.C.; Jochems-Tanguay, L.; Jean, F.; Maltais, A.; Trudeau, S.; St-Onge, M.; Cormier, D.; Smith, S.M.; Boisclair, J. Journal of Economic Entomology 114 (5).
Year: 2021
Catalog ID: 40584
Issued by: Atlantic Forestry Centre
Availability: PDF (request by e-mail)
-
Host-choice by a specialist folivore reflects trade-offs between foliage quality and 1 parasitism risk. 2021. Stead, L.; Heard, S.B.; Johns, R.C. Ecological Entomology 46: 4
-
Un cadre conceptuel pour l’intervention précoce contre la tordeuse des bourgeons de l’épinette : Peut-on arrêter les épidémies? 2021. Johns, R.C.; and Martel, V. Note d'impact No. 65.
-
A conceptual framework for spruce budworm early intervention: Can outbreaks be stopped? 2021. Johns, R.C.; and Martel, V. Impact Note No. 65.
-
The Use of UAS to Release the Egg Parasitoid Trichogramma spp. (Hymenoptera: Trichogrammatidae) Against an Agricultural and a Forest Pest in Canada. 2021. Martel, V.; Johns, R.C.; Jochems-Tanguay, L.; Jean, F.; Maltais, A.; Trudeau, S.; St-Onge, M.; Cormier, D.; Smith, S.M.; Boisclair, J.; Journal of Economic Entomology. 1-15
Martel, V.; Johns, R.C.; Jochems-Tanguay, L.; Jean, F.; Maltais, A.; Trudeau, S.; St-Onge, M.; Cormier, D.; Smith, S.M.; Boisclair, J.
Year: 2021
Catalog ID: 40306
Issued by: Laurentian Forestry Centre
Availability: PDF (request by e-mail)
-
Impact of the Invasive Beech Leaf-Mining Weevil, Orchestes fagi, on American Beech in Nova Scotia, Canada. 2020. Sweeney, J.D.; Hughes, C.; Zhang, H.; Hillier, N.K.; Morrison, A.; Johns, R. Frontiers in Forests and Global Change
Sweeney, J.D.; Hughes, C.C.; Johns, R.C.
Year: 2020
Catalog ID: 40591
Issued by: Atlantic Forestry Centre
Availability: PDF (request by e-mail)
-
Interguild interactions between a non-native phloem feeder and a native outbreaking defoliator. 2020. MacDonnell, M.; Edwards, S.; Heard, S.B.; Pureswaran, D.S.; Johns, R.C. Ecological Entomology 45 (3): 697-708.
Year: 2020
Catalog ID: 40537
Issued by: Atlantic Forestry Centre
Availability: Not available through the CFS (click for more information).
-
Identification of Spruce Budworm Natural Enemies Using a qPCR-Based Molecular Sorting Approach. 2020. Nisole, A.; Stewart, D.; Kyei-Poku, G.; Nadeau, M.; Trudeau, S.; Huron, P.; Djoumad, A.; Kamenova, S.; Smith, M.A.; Eveleigh, E.; Johns, R.C.; Martel, V.; Cusson, M. Forests 11 : 621.
Nisole, A.; Stewart, D.; Kyei-Poku, G.; Nadeau, M.; Trudeau, S.; Huron, Paule, PH; Djoumad, A.; Kamenova, S., ; Smith, M.A.; Eveleigh, E.S.; Johns, R.C.; Martel, V.; Cusson, M.
Year: 2020
Catalog ID: 40162
Issued by: Laurentian Forestry Centre
Availability: PDF (request by e-mail)
-
Tracking insect outbreaks: a case study of community-assisted moth monitoring using sex pheromone traps. 2020. Carleton, R.D.; Owens, E.; Blaquière, H.; Bourassa, S.; Bowden, J.J.; Candau, J.-N.; DeMerchant, I.; Edwards, S.; Heustis, A.; James, P.M.A.; Kanoti, A.M.; MacQuarrie, C.J.K.; Martel, V.; Moise, E.R.D.; Pureswaran, D.S.; Shanks, E.; Johns, R.C. FACETS 5: 91–104.
Carleton, R.D.; Owens, E; Blaquière, H.; Bourassa, S.; Bowden, J.; Candau, J.-N.; DeMerchant, I.; Edwards, S; Huestis, A.; James, P.M.A.; Kanoti, A.M.; MacQuarrie, C.J.K.; Martel, V.; Moise, E.R.D.; Pureswaran, D.S.; Shanks, E.; Johns, R.C.
Year: 2020
Catalog ID: 40112
Issued by: Great Lakes Forestry Centre
Availability: PDF (download)
-
Positive results of an early intervention strategy to suppress a spruce budworm outbreak after five years of trials. MacLean, D. A., Amirault, P., Amos-Binks, L., Carleton, D., Hennigar, C., Johns, R., & Régnière, J. (2019). Forests, 10(5), 448.
MacLean, D.A.; Amos-Binks, L.; Carleton, D.; Hennigar, C.R.; Amirault, P.; Johns, R.C.; Regniere, J.
Year: 2019
Catalog ID: 40261
Issued by: Atlantic Forestry Centre
Availability: PDF (download)
-
A Conceptual Framework for the Spruce Budworm Early Intervention Strategy: Can Outbreaks be Stopped? 2019. Johns, Robert C. ; Bowden, Joseph J.; Carleton, Drew R.; Cooke, Barry J.; Edwards, Sara; Emilson, Erik J. S.; James, Patrick M. A.; Kneeshaw, Dan; MacLean, David A.; Martel, Véronique; Moise, Eric R. D.;Mott, Gordon D.; Norfolk, Chris J.; Owens, Emily; Pureswaran, Deepa S.; Quiring, Dan T.; Régnière,Jacques;Richard, Brigitte; Stastny, Michael. Forests Vol. 10, Issue 10
Johns, R.C.; Bowden, J.; Moise, E.R.D.; Owens, E; Stastny, M.
Year: 2019
Catalog ID: 39960
Issued by: Atlantic Forestry Centre
Availability: PDF (download)
-
Canadian Forest Service spruce budworm L2 processing lab. 2019. R.C. Johns. Atlantic Forestry Centre - Making a Difference Note. NRCan, CFS-AFC, Fredericton, NB, Canada
-
Density has more influence than drought on spruce budworm (Choristoneura fumiferana) performance under outbreak conditions. 2019. Moise, E.R.D.; Lavigne, M.B.; Johns, R.C. Forest Ecology and Management 433: 170-175.
Moise, E.R.D.; Lavigne, M.B.; Johns, R.C.
Year: 2019
Catalog ID: 39640
Issued by: Atlantic Forestry Centre
Availability: PDF (download)
-
Density has more influence than drought on spruce budworm (Choristoneura fumiferana) performance under outbreak conditions. 2018. Moise, E.; Lavigne, M.B.; Johns, R.C. Forest Ecology & Management 433 170-175.
Moise, E.R.D.; Lavigne, M.B.; Johns, R.C.
Year: 2018
Catalog ID: 40547
Issued by: Atlantic Forestry Centre
Availability: PDF (request by e-mail)
-
Dispersion de la tordeuse des bourgeons de l'épinette. Johns, R.C., et Owens, E. 2018. RNCan Une Contribution Significative 017.
-
Spruce budworm dispersal. Johns, R.C., and Owens, E. 2018. NRCan Making a Difference 17E.
-
Testing the efficacy of Trichogramma minutum in the context of an 'Early Intervention Strategy' against the spruce budworm using different release methods. 2018. Martel, V.; Trudeau, S.; Johns, R.; Owens, E.; Smith, S.M.; Boivin, G. In SERG International 2018 Workshop Proceedings. pp. 276-283.
Martel, V.; Trudeau, S.; Johns, R.C.; Owens, E; Smith, S.M.; Boivin, G.
Year: 2018
Catalog ID: 39037
Issued by: Laurentian Forestry Centre
Availability: PDF (download)
-
Landscape level impacts of EIS on SBW, other herbivores and associates natural enemies (ACOA RD100 2.2.2). 2018. Martel, V.; Johns, R.; Eveleigh, E.; McCann, K.; Pureswaran, D.; Sylvain, Z.; Morrison, A.; Morin, B.; Owens, E.; Hébert, C. In SERG International 2018 Workshop Proceedings. pp. 138-146.
Martel, V.; Johns, R.C.; Eveleigh, E.S.; McCann, K.S.; Pureswaran, D.S.; Morrison, A.; Morin, B.; Owens, E; Hébert, C.
Year: 2018
Catalog ID: 39036
Issued by: Laurentian Forestry Centre
Availability: PDF (download)
-
Hitching a ride: firewood as a potential pathway for range expansion of an exotic beech leaf-mining weevil, Orchestes fagi (Coleoptera: Curculionidae). 2017. Morrison, A.; Sweeney, J.D., Hughes, C.C., and Johns, R.C. The Canadian Entomologist 149: 129-137.
Morrison, A.; Sweeney, J.D.; Hughes, C.C.; Johns, R.C.
Year: 2017
Catalog ID: 39563
Issued by: Atlantic Forestry Centre
Availability: PDF (download)
-
Hanging in the treetops: an in situ experiment in ancient hemlock assessing outbreak defoliator performance among crown levels. 2016. Hervieux, M.; Maguire, D.Y.; Johns, R.C.; Bauce, E.; Buddle, C.M.; Quiring, D.T. Ecological Entomology 41: 413–420.
Hervieux, M.; Maguire, D.Y.; Johns, R.C.; Bauce, E.; Buddle, C.M.; Quiring, D.T.
Year: 2016
Catalog ID: 39559
Issued by: Atlantic Forestry Centre
Availability: PDF (download)
-
Charançon du hêtre. 2016. Sweeney, J.D., et Johns, R.C. Ressources naturelles Canada, Service canadien des Forêts - Centre de foresterie de l'Atlantique, Note d'impact 61F.
-
Beech leaf-mining weevil. 2016. J.D. Sweeney and R.C. Johns. Natural Resources Canada, Canadian Forest Service - Atlantic Forestry Centre Impact Note 61.
-
Paradigms in eastern spruce budworm (Lepidoptera: Tortricidae) population ecology: A century of debate. 2016. Pureswaran, D.S.; Johns, R.; Heard, S.B.; Quiring, D. Environ. Entomol. 45: 1333-1342.
Pureswaran, D.S.; Johns, R.C.; Heard, S.; Quiring, D.T.
Year: 2016
Catalog ID: 37306
Issued by: Laurentian Forestry Centre
Availability: PDF (request by e-mail)
-
Stratégie d'intervention précoce - efficacité des insecticides et leurs efforts non-spécifiques. 2016. Johns, R.C.; Martel, V. RNCan: Une contribution significative 16F
-
Early intervention strategy—efficacy and the non-target impact of insecticides. 2016. Johns, R.C.; Martel, V. NRCan: Making a Difference 16E.
-
Pisteurs de tordeuses : un projet de science citoyenne. 2015. Johns, R.C.; Pureswaran, D.S.; Owens, E. Ressources naturelles Canada, Service canadien des forêts - Centre de foresterie de l'Atlantique, Une Contribution Significative 14
Johns, R.C.; Pureswaran, D.S.; Owens, E
Year: 2015
Catalog ID: 36772
Issued by: Atlantic Forestry Centre
Availability: PDF (download)
-
Budworm tracker: a citizen science project. 2015. Johns, R.C.; Pureswaran, D.S.; Owens, E. Natural Resources Canada, Canadian Forest Service - Atlantic Forestry Centre, Making a Difference 14.
Johns, R.C.; Pureswaran, D.S.; Owens, E
Year: 2015
Catalog ID: 36771
Issued by: Atlantic Forestry Centre
Availability: PDF (download)
-
Evidence for a substantial host use bottleneck following the invasion of an exotic, polyphagous weevil. 2015. Moise, E.; Forbes, G.B.H.; Morrison, A.; Sweeney, J.D.; Hillier, N.K.; Johns, R.C. Ecological Entomology 40: 796–804.
Moise, E.R.D.; Forbes, G.B.H.; Morrison, A.; Sweeney, J.D.; Hillier, N.K.; Johns, R.C.
Year: 2015
Catalog ID: 36409
Issued by: Atlantic Forestry Centre
Availability: PDF (request by e-mail)
-
Adaptive advantages of dietary mixing different-aged foliage within conifers for a generalist defoliator. 2015. Johns, R.C.; Tobita, H.; Hara, H.; Ozaki, K. Ecological Research 30:783-802.
Johns, R.C.; Tobita, H; Hara, H; Ozaki, K
Year: 2015
Catalog ID: 36388
Issued by: Atlantic Forestry Centre
Availability: PDF (request by e-mail)
-
Diel activity patterns of Paradiplosis tumifex (Diptera: Cecidomyiidae) and its inquilinie, Dasineura balsamicola (Diptera: Cecidomyiidae), within young balsam fir. 2015. Carleton, R.D.; Johns, R.C.; Edwards, B.V.; Eveleigh, E.S.; Silk, P.J. The Canadian Entomologist 147: 181-192.
Carleton, D.; Johns, R.C.; Edwards, B.V.; Eveleigh, E.S.; Silk, P.J.
Year: 2015
Catalog ID: 36309
Issued by: Atlantic Forestry Centre
Availability: PDF (request by e-mail)
-
Plant module size influences the intra-tree distribution and abundance of a shoot-boring sawfly in young balsam fir. 2015. Johns, R.C.; Edwards, S.; Carleton, D.; Morrison, A.; Morin, B. Entomologia Experimentalis et Applicata 156: 220-224.
Johns, R.C.; Edwards, S; Carleton, D.; Morrison, A.; Morin, B.
Year: 2015
Catalog ID: 36303
Issued by: Atlantic Forestry Centre
Availability: PDF (download)
-
Willows (Salix spp.) as pollen and nectar sources for sustaining fruit and berry pollinating insects. 2015. Ostaff, D.P.; Mosseler, A.; Johns, R.C.; Javorek, S.; Klymko, J.; Ascher, J.S. Canadian Journal of Plant Science 95: 505-516.
Ostaff, D.P.; Mosseler, A.; Johns, R.C.; Javorek, S.; Klymko, J.; Ascher, J.S.
Year: 2015
Catalog ID: 36159
Issued by: Atlantic Forestry Centre
Availability: PDF (request by e-mail)
-
Notes on the life-history of the balsam shootboring sawfly in the Maritimes region. 2014. Carleton, R.D.; Johns, R.C.; Morrison, A.; Morin, B. Journal of the Acadian Entomological Association 10: 23-29.
Carleton, D.; Johns, R.C.; Morrison, A.; Morin, B.
Year: 2014
Catalog ID: 35736
Issued by: Atlantic Forestry Centre
Availability: PDF (download)
-
A technical guide to installing beetle traps in the upper crown of trees. 2014. Hughes, C.C.; Johns, R.C.; Sweeney, J.D. Journal of the Acadian Entomological Society 10: 12–18.
Hughes, C.C.; Johns, R.C.; Sweeney, J.D.
Year: 2014
Catalog ID: 35735
Issued by: Atlantic Forestry Centre
Availability: PDF (download)
-
Diel activity patterns of Paradiplosis tumifex (Diptera: Cecidomyiidae) and its inquiline, Dasineura balsamicola (Diptera: Cecidomyiidae), within young balsam fir. 2014. Carleton, R.D.; Johns, R.C.; Edwards, B.V.; Eveleigh, E.S.; Silk, P.J. The Canadian Entomologist : online early.
Carleton, D.; Johns, R.C.; Edwards, B.V.; Eveleigh, E.S.; Silk, P.J.
Year: 2014
Catalog ID: 35678
Issued by: Atlantic Forestry Centre
Availability: PDF (request by e-mail)
-
Intratree variation in the seasonal distribution and mortality of spruce budworm (Lepidoptera: Tortricidae) from the peak to collapse of an outbreak. Eveleigh, E.S.; Johns, R.C. 2014. Annals of the Entomological Society of America 107(2): 435-444.
Year: 2014
Catalog ID: 35395
Issued by: Atlantic Forestry Centre
Availability: PDF (request by e-mail)
-
Host-tree oviposition preference of balsam fir sawfly, Neodiprion abietis (Hymenoptera: Diprionidae), in New Brunswick, Canada. 2013. Johns, R.C.; Fidgen,J.; Ostaff, D.P. The Canadian Entomologist 145:430-434.
Johns, R.C.; Fidgen, J.G.; Ostaff, D.P.
Year: 2013
Catalog ID: 35403
Issued by: Atlantic Forestry Centre
Availability: PDF (request by e-mail)
-
Ontogeny and stand condition influence the dispersal behavior of a defoliating specialist caterpillar. 2013. Johns, R.C.; Eveleigh, E.S. Environmental Entomology 42(6): 1329-1337.
Year: 2013
Catalog ID: 35323
Issued by: Atlantic Forestry Centre
Availability: PDF (request by e-mail)
-
The pending storm: Eastern Canadian foresters brace for spruce budworm. 2013. Johns, R.; Pureswaran, D. Can. For. Industries Sept./Oct. 2013:14-16.
Year: 2013
Catalog ID: 35171
Issued by: Laurentian Forestry Centre
Availability: PDF (request by e-mail)
-
Relationships between Pikonema alaskensis larval density and shoot growth and production in young black spruce. 2013. Johns, R.C.; Leggo, J.J.; MacLean, D.A.; Quiring, D.T. Forest Ecology and Management 292: 130-138.
Johns, R.C.; Leggo, J.J.; MacLean, D.A.; Quiring, D.T.
Year: 2013
Catalog ID: 34568
Issued by: Atlantic Forestry Centre
Availability: PDF (request by e-mail)
-
Dietary mixing within the crown of a decidous conifer enhances the fitness of a specialist sawfly. 2012. R. Johns; K. Ozaki; H. Tobita. Animal Behaviour 84: 1393-1400.
Johns, R.C.; Ozaki, K; Tobita, H
Year: 2012
Catalog ID: 34256
Issued by: Atlantic Forestry Centre
Availability: Order paper copy (free)
-
Temporal variations in abiotic conditions exert little influence on diurnal activity of late-instar spruce budworm larvae on balsam fir. 2012. Holmes, S.E.; Kettela, E.G.; Nigam, P.C.; Heard, S.B.; Johns, R.C. The Canadian Entomologist 144: 396–405.
Holmes, S.; Kettela, E.G.; Nigam, P.C.; Heard, S.; Johns, R.C.
Year: 2012
Catalog ID: 33825
Issued by: Atlantic Forestry Centre
Availability: Order paper copy (free)
-
Larval diet prior to and following virus ingestion influence the efficacy of two nucleopolyhedroviruses in whitemarked tussock moth (Orgyia leucostigma) caterpillars. 2012. Brodersen, G., Johns, R.C., Lapointe, R., Thumbi, D., Thurston, G., Lucarotti, C.J., and Quiring, D.T. The Canadian Entomologist 144: 447–457.
Brodersen, G; Johns, R.C.; Lapointe, R.; Thumbi, D.K.; Thurston, G.S.; Lucarotti, C.J.; Quiring, D.T.
Year: 2012
Catalog ID: 33823
Issued by: Atlantic Forestry Centre
Availability: Order paper copy (free)
-
Temporal and spatial variations in microclimate influence the larval foraging behaviors and performance of a conifer-feeding sawfly. 2012. Johns, R.C.; Boone, J.; Leggo,J.; Smith, S.; Carleton, D.; Quiring, D.T. Environmental Entomology 41(3): 594–602.
Johns, R.C.; Boone, J; Leggo, J.J.; Smith, S.M.; Carleton, D.; Quiring, D.T.
Year: 2012
Catalog ID: 33821
Issued by: Atlantic Forestry Centre
Availability: Order paper copy (free)
-
Intra-tree variation in foliage quality drives the adaptive sex-biased foraging behaviors of a specialist herbivore. 2010. Johns, R.C.; Quiring, D.T.; Ostaff, D.P.; Bauce, E. Oecologia 163: 935-947.
Johns, R.C.; Quiring, D.T.; Ostaff, D.P.; Bauce, E.
Year: 2010
Catalog ID: 32033
Issued by: Atlantic Forestry Centre
Availability: Order paper copy (free)
-
Spatial heterogeneity within an evergreen conifer promotes foliage-age dietary mixing by a specialist herbivore. 2010. Johns, R.C.; Quiring, D.T. Animal Behaviour 80: 659-666.
Year: 2010
Catalog ID: 31849
Issued by: Atlantic Forestry Centre
Availability: Order paper copy (free)
-
Sex biased intra-tree oviposition site selection and larval foraging behavior of a specialist herbivore. 2009. Johns, R.C.; Quiring, D.T.; Ostaff, D.P. Entomologia experimentalis et applicata 132: 264-274.
Johns, R.C.; Quiring, D.T.; Ostaff, D.P.
Year: 2009
Catalog ID: 31126
Issued by: Atlantic Forestry Centre
Availability: Order paper copy (free)
-
Foliage-age mixing within balsam fir increases the fitness of a generalist caterpillar. 2009. Johns, R.C.; Quiring, D.T.; Lapointe, R.; Lucarotti, C.J. Ecological Entomology 34: 624-631.
Johns, R.C.; Quiring, D.T.; Lapointe, R.; Lucarotti, C.J.
Year: 2009
Catalog ID: 31122
Issued by: Atlantic Forestry Centre
Availability: Order paper copy (free)
-
Sampling procedures for evaluating yellowheaded spruce sawfly density and defoliation in juvenile black spruce stands. 2006. Johns, R.C.; Ostaff, D.P.; Quiring, D.T. Journal of the Acadian Entomological Society 2: 1-12.
Johns, R.C.; Ostaff, D.P.; Quiring, D.T.
Year: 2006
Catalog ID: 31130
Issued by: Atlantic Forestry Centre
Availability: Not available through the CFS (click for more information).
-
Relationships between yellowheaded spruce sawfly, Pikonema alaskensis, density and defoliation on juvenile black spruce. 2006. Johns, R.C.; Ostaff, D.P.; Quiring, D.T. Forest Ecology and Management 228: 51-60.
Johns, R.C.; Ostaff, D.P.; Quiring, D.T.
Year: 2006
Catalog ID: 26216
Issued by: Atlantic Forestry Centre
Availability: PDF (download)