B. Helson

发表

Airborne permethrin and off-target deposits from an aerial ultra-low-volume silvicultural spray

K. Sundaram, N. Payne, B. Helson, 1991 .

Azadirachtin: An Effective Systemic Insecticide for Control of Agrilus planipennis (Coleoptera: Buprestidae)

B. Helson, J. Meating, T. Buscarini, 2010, Journal of economic entomology.

Foliar residue dynamics of azadirachtins following direct stem injection into white and green ash trees for control of emerald ash borer.

Dean G. Thompson, S. Grimalt, T. Scarr, 2011, Pest management science.

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

K. Wanner, B. Kostyk, B. Helson, 1997, The Canadian Entomologist.

Number of generations, egg production, and developmental time of Culex pipiens and Culex restauns (Diptera: Culicidae) in southern Ontario.

D. J. Madder, B. Helson, G. Surgeoner, 1983, Journal of medical entomology.

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

Dean G. Thompson, G. C. Jones, D. Lyons, 2003 .

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

Dean G. Thompson, D. Lyons, R. Mickle, 2003 .

THE USE OF OVIPOSITION ACTIVITY TO MONITOR POPULATIONS OF CULEX PIPIENS AND CULEX RESTUANS (DIPTERA: CULICIDAE)

D. J. Madder, B. Helson, G. Surgeoner, 1980, The Canadian Entomologist.

Ethyl m-Digallate from Red Maple, Acer rubrum L., as the Major Resistance Factor to Forest Tent Caterpillar, Malacosoma disstria Hbn.

M. Abou-zaid, C. Nozzolillo, J. Arnason, 2001, Journal of Chemical Ecology.

Estimating buffer zone widths for pesticide applications

R. Fleming, K. Sundaram, N. Payne, 1988 .

Control of conifer defoliators with neem-based systemic bioinsecticides using a novel injection device

K. Wanner, D. Lyons, T. Scarr, 2001, The Canadian Entomologist.

Efficacy of Piper nigrum (Piperaceae) extract for control of insect defoliators of forest and ornamental trees

B. Philogéne, D. Lyons, I. Scott, 2007, The Canadian Entomologist.

Laboratory evaluation of two novel strategies to control first-instar gypsy moth larvae with spinosad applied to tree trunks.

K. Wanner, B. Helson, B. Harris, 2002, Pest management science.

Laboratory and field evaluation of spinosad against the gypsy moth, Lymantria dispar.

K. Wanner, B. Helson, B. Harris, 2000 .

THE SEASONAL DISTRIBUTION AND SPECIES COMPOSITION OF MOSQUITOES (DIPTERA: CULICIDAE) COLLECTED DURING A ST. LOUIS ENCEPHALITIS SURVEILLANCE PROGRAM FROM 1976 TO 1978 IN SOUTHWESTERN ONTARIO

R. Wright, B. Helson, G. Surgeoner, 1980, The Canadian Entomologist.

PARTICULATE FORMULATIONS OF ABATE® AND METHOXYCHLOR AS BLACK FLY LARVICIDES: THEIR SELECTIVE EFFECTS ON STREAM FAUNA

A. S. West, B. Helson, 1978, The Canadian Entomologist.

Virus isolations from mosquitoes in southern Ontario, 1976 and 1977.

H. Artsob, R. Wright, B. Helson, 1980, Canadian journal of microbiology.

TOXICITY OF INSECTICIDES TO FIRST-INSTAR LARVAE OF THE SPRUCE BUDMOTH, ZEIRAPHERA CANADENSIS MUT. AND FREE. (LEPIDOPTERA: TORTRICIDAE): LABORATORY AND FIELD STUDIES

P. Groot, J. Turgeon, B. Helson, 1989, The Canadian Entomologist.

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)

B. Helson, M. Auger, 1991, The Canadian Entomologist.

Hibernation in the blackfly Prosimulium mysticum: quiescence or oligopause?

A. Mansingh, B. Helson, R. Steele, 1972 .

INDUCTION OF DIAPAUSE IN CULEX PIPIENS AND CULEX RESTUANS (DIPTERA: CULICIDAE) IN SOUTHERN ONTARIO

D. J. Madder, G. A. Surgeoner, B. V. Helson, 1983, The Canadian Entomologist.

SEASONAL ACTIVITY OF MANSONIA PERTURBANS ADULTS (DIPTERA: CULICIDAE) IN SOUTHWESTERN ONTARIO

S. Allan, B. Helson, G. Surgeoner, 1981, The Canadian Entomologist.

AN OVIPOSITION TRAP FOR ARBOVIRUS SURVEILLANCE IN CULEX SP. MOSQUITOES (DIPTERA: CULICIDAE)

B. Helson, G. Surgeoner, 1978, The Canadian Entomologist.

Control of White Pine Weevil in Young Jack Pine Plantations with Permethrin and Methoxychlor

P. Groot, B. Helson, B. F. Zylstra, 1995 .

Efficacy and timing of insecticide sprays for control of white pine weevil (Coleoptera: Curculionidae) in high-value pine plantations

P. Groot, B. Helson, 1993 .

Persistence and activity of mexacarbate and its metabolites against spruce budworm larvae

K. Sundaram, B. Helson, 1993 .

EFFECT OF HOST AND NONHOST TREES ON THE GROWTH AND DEVELOPMENT OF THE FOREST TENT CATERPILLAR, MALACOSOMA DISSTRIA (LEPIDOPTERA: LASIOCAMPIDAE)

M. Abou-zaid, J. Arnason, R. Nicol, 1997, The Canadian Entomologist.

Laboratory toxicology of six forestry insecticides to four species of bee (hymenoptera: Apoidea)

B. Helson, Kevin N. Barber, P. Kingsbury, 1994 .

Snowshoe hare virus activity in Southern Ontario.

H. Artsob, B. Helson, L. Spence, 1982, Canadian journal of public health = Revue canadienne de sante publique.

Impact assessment of spray drift from silvicultural aerial applications of permethrin on aquatic invertebrates using mosquito bioassays

K. Sundaram, N. Payne, B. Helson, 1993 .

Distribution and persistence of aerially sprayed permethrin in some terrestrial components of a boreal plantation forest

K. Sundaram, N. Payne, B. Helson, 1992 .