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THE BIOLOGY AND LIFE HISTORY OF THE CUTWORM AMPHIPOEA INTEROCEANICA (LEPIDOPTERA: NOCTUIDAE), A NEW PEST OF STRAWBERRY IN MANITOBA1

  • G. L. Ayre (a1)

Abstract

A crown-boring noctuid, Amphipoea interoceanica (Smith), has suddenly become a serious pest of commercial strawberries in Manitoba. Eggs are laid in August on dead strawberry leaves and hatch in early May. Young larvae feed in the leaf stalks; older larvae bore in the crowns and kill the plants. There are six instars, pupation occurs in late July and adults emerge in August. The plants are first attacked in the second year of growth and by the fifth year the entire crop may be lost.

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Forbes, T. M. 1954. Lepidoptera of New York and neighboring states. III. Noctuidae. Mem. Cornell Univ. agric. Exp. Stn. 329.
MacFadyen, A. 1961. Improved funnel-type extractors for soil arthropods. J. Anim. Ecol. 30: 172184.
Rockburne, E. W. and Lafontaine, J. D.. 1976. The cutworm moths of Ontario and Quebec. Agric. Can. Publ. 1593. 164 pp.
Smith, J. B. 1899. Contributions towards a monograph of the Noctuidae of boreal North America: revision of the genus Hydroecia. Trans. Am. ent. Soc. 26: 148.

THE BIOLOGY AND LIFE HISTORY OF THE CUTWORM AMPHIPOEA INTEROCEANICA (LEPIDOPTERA: NOCTUIDAE), A NEW PEST OF STRAWBERRY IN MANITOBA1

  • G. L. Ayre (a1)

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