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STADIAL SUSCEPTIBILITY OF EASTERN SPRUCE BUDWORM, CHORISTONEURA FUMIFERANA (LEPIDOPTERA: TORTRICIDAE), TO THE INSECT GROWTH REGULATOR DIMILIN®

Published online by Cambridge University Press:  31 May 2012

J. Granett  and
A. Retnakaran
J. Granett
Affiliation:
Department of Entomology, University of Maine, Orono
A. Retnakaran
Affiliation:
Insect Pathology Research Institute, Canadian Forestry Service, Sault Ste. Marie, Ontario
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Extract

Dimilin® 1-(4-chlorophenyl)-3-(2,6-difluorobenzoyl)-urea is an insect growth regulator which disrupts the insect's molting process. It has been field tested against eastern spruce budworm, Choristoneura fumiferana, with variable results (Dimond 1975; Retnakaran et al. 1976). In addition to fluctuations in many field parameters, innate variations in susceptibility to Dimilin during different stadia may influence efficacy. Retnakaran and Smith (1976) found that larvae during the 5th and 6th stadia were most susceptible.

Type
Articles
Information
The Canadian Entomologist , Volume 109 , Issue 6 , June 1977 , pp. 893 - 894
Copyright
Copyright © Entomological Society of Canada 1977

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References

Dimond, J. 1975. Efficacy of materials tested for control of spruce budworm damage in Maine, 1975. Misc. Rep. Life Sci. Agric. exp. Stn 174. 16 pp.Google Scholar
Granett, J. and Dunbar, D. M.. 1974. TH 6040: Laboratory and field trials for control of gypsy moths. J. econ. Ent. 68: 99–102.Google Scholar
Grisdale, D. 1970. An improved laboratory method for rearing large numbers of spruce budworm, Choristoneura fumiferana (Lepidoptera: Tortricidae). Can. Ent. 102: 1111–1117.Google 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., Howse, G. M., and Kaupp, W.. 1976. Experimental aerial application of insect growth regulators against the spruce budworm, Choristoneura fumiferana (Clem.) in Manitoulin Island in 1974 and 1975. Inf. Rep. IP-X-13. 21 pp.Google Scholar
Retnakaran, A. and Smith, L.. 1975. Morphogenetic effects of an inhibitor of cuticle development on the spruce budworm, Choristoneura fumiferana (Lepidoptera: Tortricidae). Can. Ent. 107: 883–886.Google Scholar