Pest management: Four years experience in a commercial apple orchard


  • H. F. Madsen Research Station Agriculture Canada Summerland, B.C.
  • B. E. Carty Research Station Agriculture Canada Summerland, B.C.


Pest management in a 12-ha apple orchard from 1973 to 1976 resulted in a 50 percent reduction in the number of sprays that are normally applied to control insects and mites. Codling moth, <i>Laspeyresia pomonella</i> (L.), populations were monitored by sex pheromone traps and populations of other insects and mites were assessed by specific sampling techniques. Leafrollers were the most difficult pests to control and fruit injury was 1.5 to 2.0 percent in 3 of the 4 years. Mites were held below treatment levels by the predator, <i>Typhlodromus occidentalis</i> Nesbitt, except for the apple rust mite, <i>Aculus schlechtendali</i> (Nalepa) which required chemical control.


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Haley, Sue. 1976. Apple pest management in the North Okanagan Valley, British Columbia: A feasibility study. M.A. Thesis. Simon Fraser University. Burnaby. B.C. pp. 1-48.

Madsen. H.F., F.E. Peters, and J.M. Vakenti. 1975. Pest management: Experience in six British Columbia apple orchards. Can. Ent. 107:873-877.

Madsen. H.F. and F.E. Peters. 1976. Pest management: Monitoring populations of Archips argyrospilus and Archips rosanus (Lepidoptera: Tortricidae) with sex pheromone traps. Ibid. 108:1281-1284.

Madsen, H.F. and B.E. Carty. 1977. Fruittree leafroller (Lepidoptera: Tortricidae): Control of a population tolerant to diazinon. J. Econ. Ent. (in press).

Vakenti, J.M. and H.F. Madsen. 1976. Codling moth (Lepidoptera: Olethreutidae): Monitoring populations in apple orchards with sex pheromone traps. Can. Ent. 108:433-438.