Hostname: page-component-78c5997874-v9fdk Total loading time: 0 Render date: 2024-11-05T15:10:00.626Z Has data issue: false hasContentIssue false
  • English
  • Français

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)

Published online by Cambridge University Press:  31 May 2012

B.V. Helson  and
M. Auger
B.V. Helson
Affiliation:
Forestry Canada, Forest Pest Management Institute, PO Box 490, Sault Ste. Marie, Ontario, Canada P6A 5M7
M. Auger
Affiliation:
Ministére de l'Énergie et des Ressources du Québec, Service de la Protection contre les Insectes et les Maladies, 1297 boul. Charest Quest, Québec, Québec, Canada G1N 2C9
Get access Rights & Permissions [Opens in a new window]

Abstract

Mistblower applications of permethrin at 70 g AI per hectare to individual white spruce trees near the onset of the hatching period reduced spruce budmoth, Zeiraphera canadensis Mut. and Free., larval populations by 90% and damage to leaders to a very acceptable index of 0.49. A dosage of 35 g AI per hectare was less effective but did provide acceptable leader protection (damage index: 0.93). Further mistblower trials, designed to determine the optimum time to spray with permethrin, demonstrated that at 70 g AI per hectare, effective control (87–94%) and acceptable protection (damage indices: 0.87–1.13) were obtained during a 9-day period before the onset of hatch. An earlier treatment. 11 days before hatch, did not provide as effective control (58%) or acceptable protection (damage index: 1.60). Two later treatments, 3 and 4 days after the onset of hatch, gave less effective control (75–79%) but did provide acceptable leader protection (indices: 0.83–1.17).

Résumé

La vaporisation de perméthrine à raison de 70 g AI par hectare à des épinettes blanches choisies, à peu près au début de la période d’éclosion, a réduit les populations de Tordeuses de l’épinette, Zeiraphera canadensis Mut. et Free., d’environ 90% et diminué les dommages aux bourgeons terminaux jusqu’à un indice très acceptable de 0,49. Une dose de 35 g AI par hectare s’est avérée moins efficace, mais a assuré une protection acceptable des bourgeons terminaux (indice de dommage : 0,93). D’autres tests, élaborés dans le but de déterminer le moment idéal de la vaporisation, ont démontré qu’à 70 g AI par hectare on pouvait obtenir un contrôle efficace (87–94%) et une protection acceptable (indice des dommages : 0,87–1,13) au cours d’une période de 9 jours avant le début de l’éclosion. Un traitement antérieur, 11 jours avant l’éclosion, a donné des résultats inférieurs, un contrôle de 58% et une protection non acceptable des bourgeons terminaux (indice de dommage : 1,60). Deux autres applications 3 à 4 jours après le début de l’éclosion ont été moins efficaces (75–79%), mais ont assuré une protection acceptable des bourgeons terminaux (indices : 0,83–1,17).

[Traduit par la rédaction]

Type
Articles
Information
The Canadian Entomologist , Volume 123 , Issue 6 , December 1991 , pp. 1319 - 1326
Copyright
Copyright © Entomological Society of Canada 1991

Access options

Get access to the full version of this content by using one of the access options below. (Log in options will check for institutional or personal access. Content may require purchase if you do not have access.)

References

Blum, B.M. 1988. Variation in the phenology of bud flushing in white and red spruce. Can. J. For. Res. 18: 315–319.CrossRefGoogle Scholar
Bordeleau, C., Guérin, D., Innes, L., Lachance, D., and Picher, R.. 1988. Insectes et maladies des arbres Québec — 1987. Forêt Conserv. 54(10) Suppl. 34 pp.Google Scholar
Box, G.E.P., and Cox, D.R.. 1964. An analysis of transformations. J. R. Statist. Soc. B 26: 211–243.Google Scholar
Dixon, W.J. (Ed.). 1983. BMDP Statistical Software. University of California Press, Berkeley, CA. 734 pp.Google Scholar
Helson, B.V., de Groot, P., Turgeon, J.J., and Kettela, E.G.. 1989. Toxicity of insecticides to first-instar larvae of the spruce budmoth, Zeiraphera canadensis Mut. and Free. (Lepidoptera: Tortricidae): Laboratory and field studies. Can. Ent. 121: 81–91.Google Scholar
Henderson, C.F., and Tilton, E.W.. 1955. Tests with acaricides against brown wheat mite. J. econ. Ent. 48: 157–161.Google Scholar
Holmes, J.A., and Osgood, E.A.. 1984. Chemical control of the spruce budmoth, Zeiraphera canadensis Mut. and Free. (Lepidoptera: Olethreutidae) on white spruce in Maine. Univ. Maine Orono, Maine Agric. Exp. Stn. Tech. Bull. 112. 21 pp.Google Scholar
Jones, D. 1984. Use, misuse and role of multiple-comparison procedures in ecological and agricultural entomology. Environ. Ent. 13: 635–649.Google Scholar
Kingsbury, P.D., and Kreutzweiser, D.P.. 1980. Environmental impact assessment of a semi-operational permethrin application. Can. For. Serv., Forest Pest Manage. Inst. Inf. Rep. FPM-X-30. 47 pp. + Appendices.Google Scholar
Milliken, G.A., and Johnson, D.E.. 1984. Analysis of Messy Data. Vol. 1. Designed Experiments. Lifetime Learning Publications, Belmont, CA. 473 pp.Google Scholar
Neilson, M.M. 1985. Spruce budmoth — a case history: Issues and constraints. For. Chronicle 61: 252–255.Google Scholar
Nienstaedt, H., and King, J.P.. 1969. Breeding for delayed budbreak in Picea glauca (Moench) Voss: Potential frost avoidance and growth gains. Proc. 2nd World Consult. on For. Tree Breed., Washington, DC. pp. 61–80.Google Scholar
Régnière, J., and Turgeon, J.J.. 1989. Temperature-dependent development of Zeiraphera canadensis and simulation of its phenology. Entomologia exp. appl. 50: 185–193.Google Scholar
SAS Institute Inc. 1985. SAS User's Guide: Statistics, Version 5 Edition. SAS Institute Inc. Cary, NC. 956 pp.Google Scholar
Turgeon, J.J. 1985. Life cycle and behavior of the spruce budmoth, Zeiraphera canadensis (Lepidoptera: Olethreutidae), in New Brunswick. Can. Ent. 117: 1239–1247.Google Scholar
Turgeon, J.J., and Régnière, J.. 1987. Development of sampling techniques for the spruce budmoth, Zeiraphera canadensis Mut. and Free. (Lepidoptera: Tortricidae). Can. Ent. 119: 239–249.Google Scholar
Willis, G.H., and McDowell, L.L.. 1987. Pesticide persistence on foliage. Rev. Environ. Contam. Toxicol. 100: 23–73.Google Scholar
Willis, G.H., McDowell, L.L., Smith, S., and Southwick, L.M.. 1986. Permethrin washoff from cotton plants by simulated rainfall. J. Environ. Qual. 15: 116–120.Google Scholar