Hostname: page-component-848d4c4894-pftt2 Total loading time: 0 Render date: 2024-04-30T15:50:34.737Z Has data issue: false hasContentIssue false

TRENDS OF EYE-SPOTTED BUD MOTH (LEPIDOPTERA: OLETHREUTIDAE) POPULATIONS OVER 12 YEARS ON TWO CULTIVARS IN AN INSECTICIDE FREE ORCHARD1

Published online by Cambridge University Press:  31 May 2012

C. R. MacLellan
Affiliation:
Research Station, Agriculture Canada, Kentville, Nova Scotia B4N 1J5

Abstract

The populations of Spilonota ocellana (D.&S.) on two cultivars in an insecticide free orchard showed nearly identical trends over a 12-year period. Egg populations reached maximum numbers when the orchard was 9 years old and the ensuing larvae infested 33% of the clusters the following year. A marked decline in all stages occurred when the orchard was 11 to 12 years old and this was immediately followed by a second peak of less intensity on both cultivars. The only difference in mortality of the population on the two cultivars was found in neonate larvae. The average survival of egg to pupa for the 12-year period was near 7%.

Type
Articles
Copyright
Copyright © Entomological Society of Canada 1978

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

Clark, L. R., Geier, P. W., Hughes, R. D., and Morris, R. F.. 1967. The ecology of insect populations in theory and practice. Methuen, London. 232 pp.Google Scholar
Gilliatt, F. C. 1932. Four years' observations on the eye-spotted bud moth, Spilonota ocellana D.&S. in Nova Scotia. Scient. agric. 12: 357371.Google Scholar
Kelsall, J. P. 1950. A study of bird populations in the apple orchards of the Annapolis Valley, Nova Scotia with particular reference to the effects of orchard sprays upon them. Can. Dep. Res. Develop. Wildl. Mgmt Bull. Ser. 2, No. 1.Google Scholar
Legner, E. F. and Oatman, E. R.. 1962. Sampling and distribution of summer eye-spotted bud moth Spilonota ocellana (D.&S.), larvae and nests on apple trees. Can. Ent. 94: 11871189.CrossRefGoogle Scholar
LeRoux, E. J. and Reimer, C.. 1959. Variation between samples of immature stages, and of mortalities from some factors of the eye-spotted bud moth, Spilonota ocellana (D.&S.) (Lepidoptera:Olethreutidae), and the pistol casebearer, Coleophora serratella (L.) (Lepidoptera:Coleophoridae), on apple in Quebec. Can. Ent. 91: 428449.CrossRefGoogle Scholar
LeRoux, E. J., Paradis, R. O., and Hudon, M.. 1963. Major mortality factors in the population dynamics of the eye-spotted bud moth, the pistol casebearer, the fruit-tree leaf roller and the European corn borer in Quebec. Mem. ent. Soc. Can. 32, pp. 6782.Google Scholar
Lord, F. T. 1972. Comparisons of the abundance of the species composing the foliage inhabiting fauna of apple trees. Can. Ent. 104: 731749.CrossRefGoogle Scholar
MacLellan, C. R. 1977 a. Populations of some major pests and their natural enemies on young and semidwarf apple trees in Nova Scotia. Can. Ent. 109: 797806.CrossRefGoogle Scholar
MacLellan, C. R. 1977 b. Trends of codling moth (Lepidoptera: Olethreutidae) populations over 12 years on two cultivars in an insecticide free orchard. Can. Ent. 109: 15551562.CrossRefGoogle Scholar
MacPhee, A. W. 1964. Cold-hardiness, habitat and winter survival of some orchard arthropods in Nova Scotia. Can. Ent. 96: 617625.CrossRefGoogle Scholar
Madsen, H. F. and Downing, R. S.. 1968. Integrated control of the fruit-tree leaf roller, Archips argyrospilus (Walker) and the eye-spotted bud moth, Spilonota ocellana (Denis & Schiffermuller). J. ent. Soc. Br. Columb. 65: 1921.Google Scholar
Morris, R. F. and Miller, C. A.. 1954. The Development of life tables for the spruce budworm. Can. J. Zool. 32: 283301.CrossRefGoogle Scholar
Oatman, E. R. 1963. Additional studies on the bionomics of the eye-spotted bud moth Spilonota ocellana on sour cherry in Wisconsin. J. econ. Ent. 56: 903904.CrossRefGoogle Scholar
Stultz, H. T. 1951. The influence of parathion and DDT on bud moth. 87th Rep. N.S. Fruit Grower's Assoc. 1950: 121126.Google Scholar
Stultz, H. T. 1955. The influence of spray programs on the fauna of apple orchards in Nova Scotia. VII. Natural enemies of the eye-spotted bud moth, Spilonota ocellana (D.&S.) (Lepidoptera: Olethreutidae). Can. Ent. 87: 8085.CrossRefGoogle Scholar