Hostname: page-component-cd9895bd7-jn8rn Total loading time: 0 Render date: 2024-12-28T11:07:13.587Z Has data issue: false hasContentIssue false
  • English
  • Français

EFFECTS OF SELECTED JUVENILE HORMONE ANALOGS ON SIXTH-INSTAR LARVAE OF THE EASTERN SPRUCE BUDWORM, CHORISTONEURA FUMIFERANA CLEMENS (LEPIDOPTERA: TORTRICIDAE)

Published online by Cambridge University Press:  31 May 2012

Hemendra Mulye  and
Roger Gordon
Hemendra Mulye
Affiliation:
Department of Biology, Memorial University of Newfoundland, St. John's, Newfoundland, Canada A1B 3X9
Roger Gordon
Affiliation:
Department of Biology, Memorial University of Newfoundland, St. John's, Newfoundland, Canada A1B 3X9
Rights & Permissions [Opens in a new window]

Abstract

Core share and HTML view are not available for this content. However, as you have access to this content, a full PDF is available via the ‘Save PDF’ action button.

The effectiveness of seven insect juvenile hormone analogs (JHAs) in disrupting metamorphosis of the eastern spruce budworm, Choristoneura fumiferana Clemens, was determined by applying the compounds topically to early sixth-instar larvae and monitoring subsequent development. Fenoxycarb showed promising control potential, with an LC50 of 0.26 μg per insect. Relative lethal effectiveness, based on LC50 values, was Fenoxycarb > ZR9892 > ZR8487 > S-71639 > methoprene > ZR9582 > ZR10151. Some of the JHAs tested may be useful in an integrated spruce budworm control program.

Résumé

L’efficacité de sept analogues de l’hormone juvénile (JHA) à perturber la métamorphose de la tordeuse des bourgeons de l’épinette, Choristoneura fumiferana Clemens, a été mesurée par application locale de ces substances à de jeunes larves du stade six, suivie de l’observation du développement. Le Fenoxycarb, avec une CL50 de 0,26 μg par insecte, a montré un pouvoir léthal intéressant. L’efficacité léthale relative basée sur la valeur de la CL50 sétablit comme suit : Fenoxycarb > ZR9892 > ZR8487 > S-71639 > methoprene > ZR9582 > ZR10151. Certains des JHA testés pourraient être utilisés dans un programme de lutte intégrée contre la tordeuse.

Type
Articles
Information
The Canadian Entomologist , Volume 121 , Issue 12 , December 1989 , pp. 1111 - 1116
Copyright
Copyright © Entomological Society of Canada 1989

References

Abbott, W.S. 1925. A method of computing the effectiveness of an insecticide. J. econ. Ent. 18: 265–267.CrossRefGoogle Scholar
Dorn, S., Frischknecht, M.L., Martinez, V., Zurflüh, R., and Fisher, V.. 1981. A novel non-neurotoxic insecticide with a broad activity spectrum. Z. Pflanzenkr. Pflanzenschutz. 88: 269–275.Google Scholar
Duncan, D.B. 1955. Multiple range and multiple F tests. Biometrics 11: 1–42.CrossRefGoogle Scholar
Finney, D.J. 1971. Probit Analysis, 3rd ed. Cambridge University Press. 333 pp.Google Scholar
Grisdale, D.G. 1984. A laboratory method for mass rearing the eastern spruce budworm, Choristoneura fumiferana. pp. 223–231in King, E.G., and Leppla, N.C. (Eds.), Advances and Challenges in Insect Rearing. USDA-ARS.Google Scholar
Masner, P., Dorn, S., Vogel, W., Kalin, M., Graf, O., and Günthart, E.. 1981. Types of responses of insects to a new IGR and to proven standards. pp. 809–814in Sehnal, F., Zabza, A., Menn, J.J., and Cymborowski, B. (Eds.), Regulation of Insect Development and Behavior. Technical University Press, Wroclaw, Poland.Google Scholar
McMorran, A. 1965. A synthetic diet for the spruce budworm, Choristoneura fumiferana (Clem.). (Lepidoptera: Tortricidae). Can. Ent. 97: 58–62.CrossRefGoogle Scholar
Morris, O.N., Cunningham, J.C., Finney-Crawley, J.R., Jaques, R.P., and Kinoshita, G.. 1986. Microbial insecticides in Canada: their registration and use in agriculture, forestry and public and animal health. A report prepared by the Special Committee of the Science Policy Committee, Ent. Soc. of Canada. Suppl. Bull. ent. Soc. Can. 18. 43 pp.Google Scholar
Outram, I. 1973. Synthetic juvenile hormone: effect on pupae of the spruce budworm. J. econ. Ent. 66: 1033–1035.CrossRefGoogle Scholar
Outram, I. 1975. Field trials of insect growth regulators against the spruce budworm. New Brunswick, 1973. pp. 143–146in Prebble, M.L. (Ed.), Aerial Control of Forest Insects in Canada. Information Canada, Ottawa.Google Scholar
Retnakaran, A. 1970. Blocking of embryonic development in the spruce budworm, Choristoneura fumiferana (Lepidoptera: Tortricidae), by some compounds with juvenile hormone activity. Can. Ent. 102: 1592–1596.CrossRefGoogle Scholar
Retnakaran, A. 1973. Hormonal induction of supernumerary instars in the spruce budworm, Choristoneura fumiferana (Lepidoptera: Tortricidae). Can. Ent. 105: 459–461.CrossRefGoogle Scholar
Retnakaran, A., Granett, J., and Ennis, T.. 1985. Insect growth regulators. pp. 529–601in Kerkut, G.A., and Gilbert, L.I. (Eds.), Comprehensive Insect Physiology, Biochemistry and Pharmacology, Vol. 12. Pergamon Press.Google Scholar
Retnakaran, A., and Grisdale, D.G.. 1970. The ovicidal effect of the hydrochlorination reaction mixture on the spruce budworm, Choristoneura fumiferana. J. econ. Ent. 63: 907–909.Google Scholar
Retnakaran, A., Howse, G.M., and Kaupp, W.. 1977. Experimental aerial application of insect growth regulators against the spruce budworm, Choristoneura fumiferana (Clem.) in Manitoulin Island in 1974 and 1975. Insect Pathology Research Institute, Sault Ste. Marie, Canada. Can. For. Serv. Info. Rep. IP-X-13. 23 pp.Google Scholar
Retnakaran, A., Kaupp, W., and Howse, G.M.. 1978. Experimental aerial application of insect growth regulators against the spruce budworm, Choristoneura fumiferana (Clem.) in Thessalon (1976) and Hearst (1977). Forest Pest Management Institute, Sault Ste. Marie, Canada. Can. For. Serv. Info. Rep. FPM-X-19. 29 pp.Google Scholar
Robertson, J.L., and Kimball, R.A.. 1979. Effects of insect growth regulators on the western spruce budworm (Choristoneura occidentalis) (Lepidoptera: Tortricidae). I. Lethal effects of last instar treatments. Can. Ent. 111: 1361–1368.CrossRefGoogle Scholar
Sehnal, F. 1983. Juvenile hormone analogues. pp. 657–672in Downer, R.G.H., and Laufer, H. (Eds.), Endocrinology of Insects. Alan R. Liss, Inc., New York.Google Scholar
Staal, G.B. 1975. Insect growth regulators with juvenile hormone activity. A. Rev. Ent. 20: 417–460.CrossRefGoogle ScholarPubMed