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EFFECTS OF RESIDUES OF CHITIN-SYNTHESIS INHIBITORS ON EGG HATCH AND SUBSEQUENT LARVAL ENTRY OF THE CODLING MOTH, CYDIA POMONELLA (LEPIDOPTERA: OLETHREUTIDAE)1

Published online by Cambridge University Press:  31 May 2012

H. R. Moffitt ,
K. D. Mantey  and
G. Tamaki
H. R. Moffitt
Affiliation:
Yakima Agricultural Research Laboratory, U.S. Department of Agriculture Agricultural Research Service, Yakima, Washington 98902
K. D. Mantey
Affiliation:
Yakima Agricultural Research Laboratory, U.S. Department of Agriculture Agricultural Research Service, Yakima, Washington 98902
G. Tamaki
Affiliation:
Yakima Agricultural Research Laboratory, U.S. Department of Agriculture Agricultural Research Service, Yakima, Washington 98902
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Abstract

In laboratory and field studies with the codling moth, Cydia pomonella (L.), TH 6043 and TH 6044, experimental benzoylphenyl urea chitin-synthesis inhibitors, were as effective as diflubenzuron in reducing egg hatch and subsequent larval entry when eggs were deposited on previously treated fruits or foliage. All three compounds exhibited extended residual activity, with significant reductions in egg hatch occurring over a 19-week period. TH 6045 exhibited little activity against codling moth. All compounds tested were relatively ineffective in reducing egg hatch or subsequent larval entry when they were applied topically to deposited eggs, except for the red ring stage of development which was slightly affected.

Résumé

Lors de tests de laboratoire et de terrain portant sur le carpocapse de la pomme, Cydia pomonella (L.), les inhibiteurs expérimentaux de la synthèse de la chitine TH 6043 et TH 6044, composés du type benzoylphényl urée, se sont avérés aussi efficaces que le diflubenzuron à réduire l'éclosion et la pénétration subséquente des larves quand des oeufs furent déposés sur des fruits et du feuillage traités. Les trois composés ont révélé un activité résiduelle prolongée, des réductions significatives de l'éclosion des oeufs étant observées pendant 19 semaines. Le TH-6045 s'est avéré peu efficace chez le carpocapse. Tous les produits testés se sont montrés inefficaces à réduire l'éclosion des oeufs et la pénétration subséquente des larves lorsqu'appliqués localement sur des oeufs pondus, sauf au stade de développement appelé anneau rouge, lequel fut perturbé légèrement.

Type
Articles
Information
The Canadian Entomologist , Volume 116 , Issue 8 , August 1984 , pp. 1057 - 1062
Copyright
Copyright © Entomological Society of Canada 1984

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References

Anderson, D. W. and Elliott, R. H.. 1982. Efficacy of diflubenzuron against the codling moth, Laspeyresia pomonella (Lepidoptera, Olethreutidae), and impact on orchard mites. Can. Ent. 114: 733–737.Google Scholar
Elliott, R. H. and Anderson, D. W.. 1982. Factors influencing the activity of diflubenzuron against the codling moth, Laspeyresia pomonella (Lepidoptera: Olethreutidae). Can. Ent. 114: 259–268.Google Scholar
Hammar, A. G. 1912. Life-history studies on the codling moth in Michigan. U.S. Dep. Agric. Bur. Ent. Bull. 115: 1–86.Google Scholar
Hoying, S. A. and Riedl, H.. 1980. Susceptibility of the codling moth to diflubenzuron. J. econ. Ent. 73: 556–560.Google Scholar
Hoyt, S. C. 1969. Integrated control of insects and biological control of mites on apple in Washington. J. econ. Ent. 62: 74–86.CrossRefGoogle Scholar
Moffitt, H. R. 1976. Alternate methods for control of the codling moth. In Proceedings, US-USSR Symposium: The Integrated Control of the Arthropod, Disease, and Weed Pests of Cotton, Grain Sorghum, and Deciduous Fruits. Lubbock, Texas, Sept. 28 – Oct. 1, 1975. Texas agric. Exp. Stn MP-1276: 91–98.Google Scholar
Moffitt, H. R., Mantey, K. D., and Tamaki, G.. 1983. Effect of chitin-synthesis inhibitors on oviposition by treated adults and on subsequent egg hatch of the codling moth, Cydia pomonella (Lepidoptera: Olethreutidae). Can. Ent. 115: 1659–1662.CrossRefGoogle Scholar
Westigard, P. H. 1973. Pest status of insects and mites on pear in southern Oregon. J. econ. Ent. 66: 227–232.CrossRefGoogle Scholar
Westigard, P. H. 1979. Codling Moth: Control on pears with diflubenzuron and effects on nontarget pest and beneficial species. J. econ. Ent. 72: 552–554.CrossRefGoogle Scholar
Wyninger, R. 1956. Über die wirkung von abiotische faktoren auf die Entwicklungs-vorgänge in Apfelwicklerei. Mitt. schweiz. ent. Ges. 29: 41–57.Google Scholar