Helson, B.V.
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Foliar residue dynamics of azadirachtins following direct stem injection into white and green ash trees for control of emerald ash bore.
Grimalt, S.; Thompson, D.G.; Chartrand, D.T.; McFarlane, J.W.; Helson, B.V.; Lyons, D.B.; Meating, J.H.; Scarr, T.A.
Year: 2011
Catalog ID: 32467
Issued by: Great Lakes Forestry Centre
Availability: PDF (request by e-mail)
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Azadirachtin: an effective systemic insecticide for control of Agrilus planipennis (Coleoptera: Buprestidae).
McKenzie, N.; Helson, B.V.; Thompson, D.G.; Otis, G.; McFarlane, J.W.; Buscarini, T.M.; Meating, J.H.
Year: 2010
Catalog ID: 31706
Issued by: Great Lakes Forestry Centre
Availability: PDF (request by e-mail)
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Efficacy of Piper nigrum (Piperaceae) extract for control of insect defoliators of forest and ornamental trees.
Scott, I.; Helson, B.V.; Strunz, G.M.; Finlay, H.; Sanchez-Vindas, P.; Lyons, D.B.; Poveda, L.; Philogène, B.J.R.; Arnason, J.T.
Year: 2007
Catalog ID: 28828
Issued by: Great Lakes Forestry Centre
Availability: PDF (request by e-mail)
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Deposition of azadirachtin following ultra-low volume aerial applications to red pine plantations for control of pine false webworm, Acantholyda erythrocephala (L.) (Hymenoptera: Pamphiliidae), in Ontario, Canada.
Thompson, D.G.; Mickle, R.E.; Lyons, D.B.; Helson, B.V.; Robinson, A.G.; Chartrand, D.T.; Buscarini, T.M.
Year: 2003
Catalog ID: 23866
Issued by: Great Lakes Forestry Centre
Availability: PDF (request by e-mail)
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Effects of azadirachtin-based insecticides on the egg parasitoid Trichogramma minutum (Hymenoptera: Trichogrammatidae).
Lyons, D.B.; Helson, B.V.; Bourchier, R.S.; Jones, G.C.; McFarlane, J.W.
Year: 2003
Catalog ID: 23865
Issued by: Great Lakes Forestry Centre
Availability: PDF (request by e-mail)
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Efficacy of ultra-low volume aerial application of an azadirachtin-based insecticide for control of the pine false webworm, Acantholyda erythrocephala (L.) (Hymenoptera: Pamphiliidae), in Ontario, Canada.
Lyons, D.B.; Helson, B.V.; Thompson, D.G.; Jones, G.C.; McFarlane, J.W.; Robinson, A.G.; Mickle, R.E.
Year: 2003
Catalog ID: 21483
Issued by: Great Lakes Forestry Centre
Availability: PDF (request by e-mail)
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Évaluation d'antiappétents et d'agents perturbateurs de la croissance dérivés d'espèces d'érable (acer) comme sources potentielles de résistance à la livrée des forêts. Nouvelles Express 25.
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Evaluation of naturally occurring antifeedants and growth disruptants from maple (Acer) species as a potential source of resistance to forest tent caterpillar. Frontline Express 25.
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Entomologie et produits naturels. Nouvelles Express 14.
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Natural products entomology. Frontline Express 14.
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Control of conifer defoliators with neem-based systemic bioinsecticides using a novel injection device.
Helson, B.V.; Lyons, D.B.; Wanner, K.W.; Scarr, T.A.
Year: 2001
Catalog ID: 20526
Issued by: Great Lakes Forestry Centre
Availability: PDF (request by e-mail)
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Ethyl m-digallate from red maple, Acer rubrum L., as the major resistance factor to forest tent caterpillar, Malacosoma disstria Hbn.
Abou-Zaid, M.M.; Helson, B.V.; Nozzolillo, C.; Arnason, J.T.
Year: 2001
Catalog ID: 20519
Issued by: Great Lakes Forestry Centre
Availability: PDF (request by e-mail)
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Phenolic composition of leaves of six maple species in the Great Lakes forest region of Canada.
Abou-Zaid, M.M.; Nozzolillo, C.; Helson, B.V.; Lombardo, D.A.
Year: 2000
Catalog ID: 33280
Issued by: Great Lakes Forestry Centre
Availability: PDF (request by e-mail)
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Phenolics from deciduous leaves and coniferous needles as sources of novel control agents for Lepidopteran forest pests.
Abou-Zaid, M.M.; Grant, G.G.; Helson, B.V.; Beninger, C.W.; de Groot, P.
Year: 2000
Catalog ID: 9614
Issued by: Great Lakes Forestry Centre
Availability: PDF (request by e-mail)
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Evaluation of neem EC formulations containing azadirachtin for forest insect pest management in Canada.
Helson, B.V.; Lyons, D.B.; de Groot, P.
Year: 1999
Catalog ID: 9730
Issued by: Great Lakes Forestry Centre
Availability: PDF (request by e-mail)
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Leader and systemic applications of neem EC formulations for control of white pine weevil (Coleoptera: Curculionidae) on jack pine and white pine.
Helson, B.V.; de Groot, P.; McFarlane, J.W.; Zylstra, B.F.; Scarr, T.A.
Year: 1998
Catalog ID: 21120
Issued by: Great Lakes Forestry Centre
Availability: PDF (request by e-mail)
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Effectiveness of neem- and diflubenzuron-based insecticides for control of the pine false webworm, Acantholyda erythrocephala (L.) (Hymenoptera: Pamphiliidae).
Lyons, D.B.; Helson, B.V.; Jones, G.C.; McFarlane, J.W.
Year: 1998
Catalog ID: 9770
Issued by: Great Lakes Forestry Centre
Availability: PDF (request by e-mail)
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Foliar and systemic applications of neem seed extract for control of spruce budworm, Choristoneura fumiferana (Clem.) (Lepidoptera: Tortricidae), infesting black and white spruce seed orchards.
Wanner, K.W.; Helson, B.V.; Kostyk, B.C.
Year: 1997
Catalog ID: 9897
Issued by: Great Lakes Forestry Centre
Availability: PDF (request by e-mail)
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Effect of host and nonhost trees on the growth and development of the forest tent caterpillar, Malacosoma disstri (Lepidoptera: Lasiocampidae).
Nicol, R.W.; Arnason, J.T.; Helson, B.V.; Abou-Zaid, M.M.
Year: 1997
Catalog ID: 9802
Issued by: Great Lakes Forestry Centre
Availability: PDF (request by e-mail)
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Systemic activity of neem seed extracts containing azadirachtin in pine foliage for control of the pine false webworm, Acantholyda erythrocephala (Hymenoptera: Pamphiliidae).
Lyons, D.B.; Helson, B.V.; Jones, G.C.; McFarlane, J.W.; Scarr, T.A.
Year: 1996
Catalog ID: 21929
Issued by: Great Lakes Forestry Centre
Availability: PDF (request by e-mail)
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Evaluation of insecticides for control of the red pine cone beetle, Conophthorus resinosae Hopkins and the white pine cone beetle, C. Coniperda (Schwarz.)
Zylstra, B.F.; de Groot, P.; Helson, B.V.
Year: 1995
Catalog ID: 32567
Issued by: Great Lakes Forestry Centre
Availability: PDF (request by e-mail)
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Neurotoxic insecticides.
Year: 1995
Catalog ID: 21830
Issued by: Great Lakes Forestry Centre
Availability: PDF (request by e-mail)
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Control of white pine weevil in young jack pine plantations with permethrin and methoxychlor.
de Groot, P.; Helson, B.V.; Zylstra, B.F.; McFarlane, J.W.; Comba, D.R.
Year: 1995
Catalog ID: 21653
Issued by: Great Lakes Forestry Centre
Availability: PDF (request by e-mail)
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Laboratory toxicology of six forestry insecticides to four species of bee (Hymenoptera: Apoidea)
Helson, B.V.; Barber, K.N.; Kingsbury, P.D.
Year: 1994
Catalog ID: 21829
Issued by: Great Lakes Forestry Centre
Availability: PDF (request by e-mail)
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Development of a chemical control strategy for the pine false webworm, Acantholyda erythrocephala (L.) (Hymenoptera: Pamphiliidae).
Lyons, D.B.; Helson, B.V.; Jones, G.C.; McFarlane, J.W.
Year: 1993
Catalog ID: 21928
Issued by: Great Lakes Forestry Centre
Availability: PDF (request by e-mail)
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Persistence and activity of mexacarbate and its metabolites against spruce budworm larvae.
Helson, B.V.; Sundaram, K.M.S.
Year: 1993
Catalog ID: 21833
Issued by: Great Lakes Forestry Centre
Availability: PDF (request by e-mail)
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Impact assessment of spray drift from silvicultural aerial applications of permethrin on aquatic invertebrates using mosquito bioassays.
Helson, B.V.; Payne, N.J.; Sundaram, K.M.S.
Year: 1993
Catalog ID: 21831
Issued by: Great Lakes Forestry Centre
Availability: PDF (request by e-mail)
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Efficacy and timing of insecticide sprays for control of white pine weevil (Coleoptera: Curculionidae) in high-value pine plantations.
Year: 1993
Catalog ID: 21652
Issued by: Great Lakes Forestry Centre
Availability: PDF (request by e-mail)
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Distribution and persistence of aerially sprayed permethrin in some terrestrial components of a boreal plantation.
Sundaram, K.M.S.; Helson, B.V.; Payne, N.J.
Year: 1992
Catalog ID: 22517
Issued by: Great Lakes Forestry Centre
Availability: PDF (request by e-mail)
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Naturally derived insecticides: prospects for forestry use.
Year: 1992
Catalog ID: 21827
Issued by: Great Lakes Forestry Centre
Availability: PDF (request by e-mail)
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Airborne permethrin and off-target deposits from an aerial ultra-low-volume silvicultural spray.
Payne, N.J.; Sundaram, K.M.S.; Helson, B.V.
Year: 1991
Catalog ID: 22243
Issued by: Great Lakes Forestry Centre
Availability: PDF (request by e-mail)
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Efficacy and timing of Permethrin mistblower sprays for the control of first-instar larvae of the spruce budmoth, Zeiraphera canadensis Mut. and Free. (Lepidoptera: Tortricidae).
Year: 1991
Catalog ID: 21828
Issued by: Great Lakes Forestry Centre
Availability: PDF (request by e-mail)
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Délimitation des zones-tampons autour des plans d’eau lors des épandages de perméthrine
Payne, N.J.; Helson, B.V.; Sundaram, K.M.S.; Kingsbury, P.D.; Fleming, R.A.; de Groot, P.
Year: 1989
Catalog ID: 22201
Issued by: Great Lakes Forestry Centre
Availability: Not available through the CFS (click for more information).
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Toxicity of insecticides to first-instar larvae of the spruce budmoth, Zeiraphera canadensis Mus. and Free. (Lepidoptera: tortricidae): laboratory and field studies.
Helson, B.V.; de Groot, P.; Turgeon, J.J.; Kettela, E.G.
Year: 1989
Catalog ID: 7149
Issued by: Atlantic Forestry Centre
Availability: PDF (request by e-mail)
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The persistence of the insect growth regulators UC84572 and Diflubenzuron in water uing mosquito bioassays. FPMI File Report 97.
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Estimating buffer zone widths for pesticide applications.
Payne, N.J.; Helson, B.V.; Sundaram, K.M.S.; Fleming, R.A.
Year: 1988
Catalog ID: 22241
Issued by: Great Lakes Forestry Centre
Availability: PDF (request by e-mail)
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Efficacy of cypermethrin for the control of mosquito larvae and pupae, and impact on non-target organisms, including fish.
Year: 1986
Catalog ID: 21837
Issued by: Great Lakes Forestry Centre
Availability: PDF (request by e-mail)
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The use of bioassays to assess aquatic arthropod mortality from permethrin drift deposits.
Helson, B.V.; Kingsbury, P.D.; de Groot, P.
Year: 1986
Catalog ID: 21832
Issued by: Great Lakes Forestry Centre
Availability: PDF (request by e-mail)
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Estimating the buffer required around water during permethrin application.FPM-X-70.
Payne, N.J.; Helson, B.V.; Sundaram, K.M.S.; Kingsbury, P.D.; Fleming, R.A.; de Groot, P.
Year: 1986
Catalog ID: 8793
Issued by: Great Lakes Forestry Centre
Availability: PDF (download)
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Habitat distribution of adult mosquitoes in southern Ontario.
Copps, P.T.; Surgeoner, G.A.; Helson, B.V.
Year: 1984
Catalog ID: 21615
Issued by: Great Lakes Forestry Centre
Availability: PDF (request by e-mail)
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An assessment of sampling techniques for adult mosquitoes in southern Ontario.
Copps, P.T.; Surgeoner, G.A.; Helson, B.V.
Year: 1984
Catalog ID: 21614
Issued by: Great Lakes Forestry Centre
Availability: PDF (request by e-mail)
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Induction of diapause in Culex pipien and_Culex restuans_ (Diptera: Culicidae) in southern Ontario.
Madder, D.J.; Surgeoner, G.A.; Helson, B.V.
Year: 1983
Catalog ID: 21944
Issued by: Great Lakes Forestry Centre
Availability: Order paper copy (free)
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Permethrin as a residual lawn spray for adult mosquito control.
Year: 1983
Catalog ID: 21835
Issued by: Great Lakes Forestry Centre
Availability: PDF (request by e-mail)
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Effect of temperature and stage of development on susceptibility of Aedes euedes and Aedes stimulans (Diptera: Culicidae) larvae to temephos
Year: 1983
Catalog ID: 21834
Issued by: Great Lakes Forestry Centre
Availability: Order paper copy (free)
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Laboratory toxicity of aqueous formulations of Fenitrothion and aminocarb containing the emulsifiers Triton X-100 and Triton X-114 against spruce budworm. FPMI File Report 43.
Helson, B.V.; McFarlane, J.W.; Comba, D.R.
Year: 1982
Catalog ID: 33902
Issued by: Great Lakes Forestry Centre
Availability: PDF (download)
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Seasonal activity of Mansonia perturbans adults (Diptera: Culicidae) in southwestern Ontario.
Allan, S.A.; Surgeoner, G.A.; Helson, B.V.; Pengelly, D.H.
Year: 1981
Catalog ID: 21413
Issued by: Great Lakes Forestry Centre
Availability: PDF (request by e-mail)
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Virus isolation from mosquitoes in southern Ontario, 1976 and 1977.
Thorsen, J.; Artsob, H.; Spence, L.; Surgeoner, G.A.; Helson, B.V.; Wright, R.E.
Year: 1980
Catalog ID: 22609
Issued by: Great Lakes Forestry Centre
Availability: PDF (request by e-mail)
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The use of oviposition activity to monitor populations of Culex pipiens and Culex restuan (Diptera: Culicidae.)
Madder, D.J.; MacDonald, R.S.; Surgeoner, G.A.; Helson, B.V.
Year: 1980
Catalog ID: 21943
Issued by: Great Lakes Forestry Centre
Availability: PDF (request by e-mail)
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The seasonal distribution and species composition of mosquitoes (Diptera: Culicidae) collected during a St. Louis encephalitis surveillance program from 1976-1978 in southwestern Ontario.
Helson, B.V.; Surgeoner, G.A.; Wright, R.E.
Year: 1980
Catalog ID: 21838
Issued by: Great Lakes Forestry Centre
Availability: PDF (request by e-mail)
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Susceptibility of Culex spp. and Aedes spp. larvae (Diptera: culicidae) to temephos and chlorpyrifos in southern Ontario.
Year: 1979
Catalog ID: 37175
Issued by: Great Lakes Forestry Centre
Availability: PDF (request by e-mail)
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Culex tarsalis, aedes sollicitans, aedes grossbecki: new distribution records from southwestern Ontario.
Helson, B.V.; Surgeoner, G.A.; Wright, R.E.; Allan, S.A.
Year: 1978
Catalog ID: 37178
Issued by: Great Lakes Forestry Centre
Availability: PDF (request by e-mail)
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Particulate formulations of abate and methoxychlor as black fly larvicides: their selective effects on stream fauna.
Year: 1978
Catalog ID: 37177
Issued by: Great Lakes Forestry Centre
Availability: PDF (request by e-mail)
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An oviposition trap for arbovirus surveillance in Culex sp. mosquitoes ( Diptera: clicidae).
Year: 1978
Catalog ID: 37176
Issued by: Great Lakes Forestry Centre
Availability: PDF (request by e-mail)
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Field evaluation of electronic mosquito-repellers in Ontario.
Year: 1977
Catalog ID: 37180
Issued by: Great Lakes Forestry Centre
Availability: PDF (request by e-mail)
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A field evaluation of electrocutors for mosquito control in southern Ontario.
Year: 1977
Catalog ID: 37179
Issued by: Great Lakes Forestry Centre
Availability: PDF (request by e-mail)
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Hibernation in the blackfly Prosimulium mystcum: quiescence or oligopause?
Mansingh, A.; Steele, R.W.; Helson, B.V.
Year: 1972
Catalog ID: 37181
Issued by: Great Lakes Forestry Centre
Availability: PDF (request by e-mail)
