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Publications by B.V. Helson

49 records.

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Foliar residue dynamics of azadirachtins following direct stem injection into white and green ash trees for control of emerald ash borer
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
Available from: Great Lakes Forestry Centre
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Available from the Journal's Web site.
DOI: 10.1002/ps.2183
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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
Available from: Great Lakes Forestry Centre
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Available from the Journal's Web site.
DOI: 10.1603/EC09305
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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
Available from: Great Lakes Forestry Centre
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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
Available from: Great Lakes Forestry Centre
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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
Available from: Great Lakes Forestry Centre
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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
Available from: Great Lakes Forestry Centre
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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.
Abou-Zaid, M.M.; Helson, B.V.
Year: 2002    Catalog ID: 32479
Available from: Great Lakes Forestry Centre
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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.
Abou-Zaid, M.M.; Helson, B.V.
Year: 2002    Catalog ID: 20958
Available from: Great Lakes Forestry Centre
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Natural products entomology. Frontline Express 14.
Helson, B.V.
Year: 2001    Catalog ID: 20896
Available from: Great Lakes Forestry Centre
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Entomologie et produits naturels. Nouvelles Express 14.
Helson, B.V.
Year: 2001    Catalog ID: 20897
Available from: Great Lakes Forestry Centre
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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
Available from: Great Lakes Forestry Centre
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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
Available from: Great Lakes Forestry Centre
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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
Available from: Great Lakes Forestry Centre
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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
Available from: Great Lakes Forestry Centre
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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
Available from: Great Lakes Forestry Centre
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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
Available from: Great Lakes Forestry Centre
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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
Available from: Great Lakes Forestry Centre
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Effect of host and nonhost trees on the growth and development of the forest tent caterpillar, Malacosoma disstria (Lepidoptera: Lasiocampidae)
Nicol, R.W.; Arnason, J.T.; Helson, B.V.; Abou-Zaid, M.M.
Year: 1997    Catalog ID: 9802
Available from: Great Lakes Forestry Centre
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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
Available from: Great Lakes Forestry Centre
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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
Available from: Great Lakes Forestry Centre
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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
Available from: Great Lakes Forestry Centre
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Neurotoxic insecticides
Helson, B.V.; Nigam, P.C.
Year: 1995    Catalog ID: 21830
Available from: Great Lakes Forestry Centre
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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
Available from: Great Lakes Forestry Centre
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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
Available from: Great Lakes Forestry Centre
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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
Available from: Great Lakes Forestry Centre
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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
Available from: Great Lakes Forestry Centre
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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
Available from: Great Lakes Forestry Centre
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Efficacy and timing of insecticide sprays for control of white pine weevil (Coleoptera: Curculionidae) in high-value pine plantations
De Groot, P.; Helson, B.V.
Year: 1993    Catalog ID: 21652
Available from: Great Lakes Forestry Centre
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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
Available from: Great Lakes Forestry Centre
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Naturally derived insecticides: prospects for forestry use
Helson, B.V.
Year: 1992    Catalog ID: 21827
Available from: Great Lakes Forestry Centre
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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
Available from: Great Lakes Forestry Centre
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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)
Helson, B.V.; Auger, M.
Year: 1991    Catalog ID: 21828
Available from: Great Lakes Forestry Centre
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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
Available from: Great Lakes Forestry Centre
CFS 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
Available from: Atlantic Forestry Centre
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The persistence of the insect growth regulators UC84572 and Diflubenzuron in water uing mosquito bioassays. FPMI File Report 97.
Helson, B.V.
Year: 1988    Catalog ID: 33951
Available from: Great Lakes Forestry Centre
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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
Available from: Great Lakes Forestry Centre
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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
Available from: Great Lakes Forestry Centre
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Efficacy of cypermethrin for the control of mosquito larvae and pupae, and impact on non-target organisms, including fish
Helson, B.V.; Surgeoner, G.A.
Year: 1986    Catalog ID: 21837
Available from: Great Lakes Forestry Centre
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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
Available from: Great Lakes Forestry Centre
CFS Availability: PDF (download)
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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
Available from: Great Lakes Forestry Centre
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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
Available from: Great Lakes Forestry Centre
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Induction of diapause in Culex pipiens and Culex restuans (Diptera: Culicidae) in southern Ontario
Madder, D.J.; Surgeoner, G.A.; Helson, B.V.
Year: 1983    Catalog ID: 21944
Available from: Great Lakes Forestry Centre
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Effect of temperature and stage of development on susceptibility of Aedes euedes and Aedes stimulans (Diptera: Culicidae) larvae to temephos
Helson, B.V.; Surgeoner, G.A.
Year: 1983    Catalog ID: 21834
Available from: Great Lakes Forestry Centre
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Permethrin as a residual lawn spray for adult mosquito control
Helson, B.V.; Surgeoner, G.A.
Year: 1983    Catalog ID: 21835
Available from: Great Lakes Forestry Centre
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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
Available from: Great Lakes Forestry Centre
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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
Available from: Great Lakes Forestry Centre
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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
Available from: Great Lakes Forestry Centre
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The use of oviposition activity to monitor populations of Culex pipiens and Culex restuans (Diptera: Culicidae)
Madder, D.J.; MacDonald, R.S.; Surgeoner, G.A.; Helson, B.V.
Year: 1980    Catalog ID: 21943
Available from: Great Lakes Forestry Centre
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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
Available from: Great Lakes Forestry Centre
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This may not be a complete list of the author's publications. This list provides the author's publications since he or she joined, or worked in cooperation with, the CFS. When available, another link is provided for periods of work elsewhere.