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POPULATIONS OF SOME MAJOR PESTS AND THEIR NATURAL ENEMIES ON YOUNG AND SEMIDWARF APPLE TREES IN NOVA SCOTIA1

Published online by Cambridge University Press:  31 May 2012

C. R. MacLellan
C. R. MacLellan
Affiliation:
Research Station, Agriculture Canada, Kentville, Nova Scotia
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Abstract

The population densities of several major apple pests and their natural enemies were studied in an insecticide-free young bearing orchard and in an older orchard of semidwarf trees on an integrated control program. In mature orchards of standard size trees, greater natural mortality occurs than that reported in this study. Over a 5-year period most pests, with notable exceptions, increased rapidly under insecticide-free conditions whereas occasional numerical surges of certain pest species occurred under the mild insecticide program. Insect damage on fruit at harvest averaged 24% in the insecticide-free orchard and 8% in the integrated control orchard which had 2.4 times more harvested fruit.

Type
Articles
Information
The Canadian Entomologist , Volume 109 , Issue 6 , June 1977 , pp. 797 - 806
Copyright
Copyright © Entomological Society of Canada 1977

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References

Chapman, P. J. and Lienk, S. E.. 1971. Tortricid fauna of apple in New York. Spec. publ., N.Y. State Agric. Exp. Sta., Cornell University, Geneva, N.Y.Google Scholar
Dondale, C. D. 1956. Annotated list of spiders (Araneae) from apple trees in Nova Scotia. Can. Ent. 88: 697–700.CrossRefGoogle Scholar
Lord, F. T. 1949. The influence of spray programs on the fauna of apple orchards in Nova Scotia. III. Mites and their predators. Can. Ent. 81: 202–214, 217–230.Google Scholar
Lord, F. T. 1965. Sampling predator populations on apple trees in Nova Scotia. Can. Ent. 97: 287–298.Google Scholar
Lord, F. T. 1972. Comparisons of the abundance of the species composing the foliage inhabiting fauna of apple trees. Can. Ent. 104: 731–749.Google Scholar
MacLellan, C. R. 1962. Mortality of codling moth eggs and young larvae in an integrated control orchard. Can. Ent. 94: 655–666.CrossRefGoogle Scholar
MacLellan, C. R. 1963. Predator populations and predation on the codling moth in an integrated control orchard — 1961, pp. 41–54. In LeRoux, E. J. et al. (Eds.), Population dynamics of agricultural and forest insect pests. Mem. ent. Soc. Can. 32.Google Scholar
MacLellan, C. R. 1972. Codling moth populations under natural, integrated, and chemical control on apple in Nova Scotia (Lepidoptera: Olethreutidae). Can. Ent. 104: 1397–1404.CrossRefGoogle Scholar
MacLellan, C. R. 1973. Natural enemies of the light brown apple moth, Epiphyas postvittana, in the Australian Capital Territory. Can. Ent. 105: 681–700.Google Scholar
MacPhee, A. W. and MacLellan, C. R.. 1971. Ecology of apple orchard fauna and development of integrated pest control in Nova Scotia. Proc. Tall Timbers Conference on Ecological animal control by habitat management, Vol. 3, pp. 197–208.Google Scholar
Sanford, K. H. 1968. Control treatments. Pesticide Res. Rep. Canada Agric., pp. 20–21.Google Scholar
Sanford, K. H. 1969. Control treatments. Pesticide Res. Rep. Canada Agric., pp. 13–14.Google Scholar
Stultz, H. T. 1955. The influence of spray programs on the fauna of apple orchards in Nova Scotia. VIII. Natural enemies of the eye-spotted bud moth, Spilonota ocellana (D. & S.) (Lepidoptera: Olethreutidae). Can. Ent. 87: 79–85.CrossRefGoogle Scholar