Occurrence of apple leaf rollers (Lepidoptera: Tortricidae) and their parasites in the Okanagan Valley, British Columbia

Authors

  • D. F. Mayer Pestology Centre Department of Biological Sciences Simon Fraser University Burnaby, B.C.
  • B. P. Beirne Pestology Centre Department of Biological Sciences Simon Fraser University Burnaby, B.C.

Keywords:

apple leaf rollers, Lepidoptera, Tortricidae, parasites

Abstract

Seven species of leaf rollers feed on apple in the Okanagan Valley. Five of them, including two of the three most common species, were not previously recorded as feeding on apple there. Six of the species have alternative host plants of which rose is the most important. A short key to final instar larvae of six of the species is included. Thirty-seven species of parasites were reared, of which eight may have some significance in control.

References

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Hall, J.A. 1929. Leat rollers attacking the apple in Norfolk County, Ontario, Rep. Entomol. Soc. Ontario. 60:137-141.

Maver, D.F. and B.P. Beirne. 1973. Aspects of the ecology of apple leaf rollers (Lep.: Tortric.) in the Okanagan Valley, British Columbia. Can. Entomol. 106:349-352.

Powell, J.A. 1964. Biological and taxonomic studies on Tortricine moths, with reference to the species in California. Univ. California Pub. Entomol. 32. 317 pp.

Venables, E.P. 1924. Leat-rollers attacking orchard trees in the Okanagan Valley. Proc. Entomol. Soc. Brit. Columbia 21:22-26.

Whitehead, W.E. 1926. Notes on the currant leaf roller (Cacoecia rosana Linn.) in Nova Scotia. Proc. Acadian Entomol. Soc. 10:76-79.

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Published

2019-09-06