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TOXIC EFFECTS OF A COMMERCIAL FORMULATION OF FENOXYCARB AGAINST ADULT AND EGG STAGES OF THE EASTERN SPRUCE BUDWORM, CHORISTONEURA FUMIFERANA (CLEMENS) (LEPIDOPTERA: TORTRICIDAE)

Published online by Cambridge University Press:  31 May 2012

Roger Gordon
Affiliation:
Department of Biology, Memorial University of Newfoundland, St. John's, Newfoundland, Canada A1B 3X9

Abstract

Greenhouse trials were conducted to evaluate the effect of treating adult and egg stages of the eastern spruce budworm, Choristoneura fumiferana (Clemens), with Insegar, a water-based commercial formulation of the juvenile hormone analog fenoxycarb, or with water (controls) at droplet sizes and densities comparable to what would be achieved through aerial spraying of field populations. When adult moths were sprayed with the juvenoid at dosages equivalent to 15.5, 155.4, and 310.8 g AI/ha, approximately 90% of the eggs that were subsequently oviposited failed to hatch. The efficacy of the compound (60% suppression of egg hatch) was not as high when the egg stages were sprayed directly at 15.5 and 155.4 g AI/ha. Insegar did not affect the egg productivity of the moths.

Résumé

Des expériences en serre ont servi à évaluer les effets de l’Insegar sur les adultes et les oeufs de la Tordeuse des bourgeons de l’épinette Choristoneura fumiferana (Clemens); l’Insegar est une préparation commerciale d’un analogue de l’hormone juvénile, le fénoxicarbe, dans de l’eau, appliqué en gouttelettes de tailles et de densités semblables à celles que l’on retrouve après la vaporisation aérienne de populations naturelles. Des adultes et oeufs traités à l’eau ont servi de témoins. Lorsque les papillons adultes ont reçu des doses équivalent à 15,5, 155,4 et 310,8 g AI/ha, environ 90% des oeufs qui ont été pondus par la suite n’ont jamais éclos. L’efficacité du produit (inhibition de l’éclosion de 60% des oeufs) n’était pas aussi grande lorsque les oeufs étaient vaporisés directement à raison de 15,5 et 155,4 g AI/ha. L’Insegar n’affecte pas la production d’oeufs chez les adultes.

[Traduit par la Rédaction]

Type
Articles
Copyright
Copyright © Entomological Society of Canada 1995

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References

Abbott, W.S. 1925. A method of computing the effectiveness of an insecticide. Journal of Economic Entomology 18: 265267.CrossRefGoogle Scholar
Berrill, M., Bertram, S., McGillivray, L., Kolohon, M., and Pauli, B.. 1994. Effects of low concentrations of forest-use pesticides on frog embryos and tadpoles. Environmental Toxicology and Chemistry 13: 657664.Google Scholar
Dimond, J.B. 1989. Inexpensive system for simulation of aerial spray deposits. Journal of Economic Entomology 82: 665667.CrossRefGoogle Scholar
Duncan, D.B. 1955. Multiple range and multiple F tests. Biometrics 11: 142.CrossRefGoogle Scholar
Fairchild, W.L., and Eidt, D.C.. 1993. Perturbation of the aquatic invertebrate community of acid bog ponds by the insecticide fenitrothion. Archives of Environmental Contamination and Toxicology 25: 170183.CrossRefGoogle Scholar
Hicks, B.J., and Gordon, R.. 1992. Effects of the juvenile hormone analog fenoxycarb on various developmental stages of the eastern spruce budworm, Choristoneura fumiferana (Clemens) (Lepidoptera: Tortricidae). The Canadian Entomologist 117: 117123.CrossRefGoogle Scholar
Hicks, B.J., and Gordon, R.. 1994. Effect of the juvenile hormone analog fenoxycarb on post-embryonic development of the eastern spruce budworm, Choristoneura fumiferana, following treatment of the egg stage. Entomologia Experimentalis et Applicata 71: 181184.CrossRefGoogle Scholar
McGaughey, W.H., and Whalon, M.E.. 1992. Managing insect resistance to Bacillus thuringiensis toxins. Science 258: 14511455.CrossRefGoogle ScholarPubMed
Mulye, H., and Gordon, R.. 1989. Effects of selected juvenile hormone analogs on sixth-instar larvae of the eastern spruce budworm, Choristoneura fumiferana Clemens (Lepidoptera: Tortricidae). The Canadian Entomologist 121: 11111116.CrossRefGoogle Scholar
Mulye, H., and Gordon, R.. 1990. A method for rearing the larval stages of the eastern spruce budworm, Choristoneura fumiferana Clemens (Lepidoptera: Tortricidae), for physiological studies. The Canadian Entomologist 122: 12711272.CrossRefGoogle Scholar
Rayner, A.C. 1956. Colorimetric estimation of dyed insecticide spray deposit using a paper sampling surface. The Canadian Entomologist 88: 279.CrossRefGoogle Scholar
Retnakaran, A., Granett, J, and Ennis, T. 1985. Insect growth regulators. pp. 529–601 in Kerkut, G.A., and Gilbert, L.I. (Eds.), Comprehensive Insect Physiology, Biochemistry and Pharmacology, Vol. 12. Pergamon Press, New York, NY. 849 pp.Google Scholar
Shea, P.J., and Nigam, P.C.. 1984. Chemical control. pp. 115–132 in Schmidt, D.M., Grimble, D.G, and Searcy, J.L (Technical Coordinators), Managing the Spruce Budworm in Eastern North America. Spruce Budworms Handbook. United States Department of Agriculture Forest Service Cooperative Research Service Agriculture Handbook 620: 192 pp.Google Scholar
West, R.J., Raske, A.G, Retnakaran, A, and Lim, K.P. 1987. Efficacy of various Bacillus thuringiensis Berliner var. kurstaki formulations and dosages in the field against the hemlock looper, Lambdina fiscellaria fiscellaria (Guen.) (Lepidoptera: Geometridae), in Newfoundland. The Canadian Entomologist 119: 449458.CrossRefGoogle Scholar