Sex Attractant Traps: Their Role in the Management of Spruce Budworm

  • C. J. Sanders


The use of sex attractant traps for monitoring population densities of spruce budworm [Choristoneura fumiferana (Clemens)] has to be viewed within the context of the techniques currently being used to estimate density. Present control strategies depend largely upon the aerial application of insecticides on high density populations. Such populations may number 50 million or more budworm/ ha, and they are easily detected by the associated defoliation which can be spotted by aerial surveys. Once detected, the necessary information for the planning of control operations can be collected by egg sampling in the fall of the previous year and by larval sampling in the spring before the control operations begin. The egg sampling permits decisions to be made on the need for protection and on the broad areas to be treated; and since it can be carried out in the fall, it provides sufficient lead time for planning and for the ordering of materials and equipment. The spring larval sampling permits final adjustments to be made in the delineation ofthe spray boundaries. Within such a strategy there is little scope for the use of sex attractant traps. Relatively few samples are required to provide the necessary accuracy of egg and larval numbers at high densities.


Release Rate Virgin Female Flight Period Sticky Trap Trap Catch 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.


Unable to display preview. Download preview PDF.

Unable to display preview. Download preview PDF.


  1. Blais, J. R., 1979, Comparison of spruce budworm overwintering populations with emerged populations (peak L2) in the lower St. Lawrence region of Quebec, 1978, Can. Dept. Environ. Bi-Mo. Res. Notes, 35: 33.Google Scholar
  2. Daterman, G. E., 1974, Synthetic sex pheromone for detection survey of European pine shoot moth, USDA For. Serv. Res. Paper PNW 180, 12 pp.Google Scholar
  3. Fitzgerald, T. D., St. Clair, A. D., Daterman, G. E., and Smith, R. G., 1973, Slow release plastic formulation of the cabbage looper pheromone cis-7-dodecenyl acetate: Release rate and biological activity. Environ. Entomol., 2: 607.Google Scholar
  4. Miller, C. A., and McDougall, G. A., 1968, A new sampling technique for spruce budworm larvae. Can. Dept. For. Rural Develop., Bi-Mo. Res. Notes, 24: 30.Google Scholar
  5. Miller, C. A., and McDougall, G. A., 1973, Spruce budworm moth trapping using virgin females, Can. J. Zool., 51: 853.CrossRefGoogle Scholar
  6. Miller, C. A., Forbes, R. S., and Dobson, C. M., 1968. Studies of the spruce budworm in the Maritimes Region by the Forest Insect & Disease Survey. I. A comparison of larval surveys, 1957–1967 with two independent sources of population data, Can. Dept. For. & Rural Develop. Internal Rept. M-34, 15 pp.Google Scholar
  7. Sanders, C. J., 1978, Evaluation of sex attractant traps for monitoring spruce budworm populations (Lepidoptera: Tortricidae). Can. Entomol., 110: 43.CrossRefGoogle Scholar
  8. Sanders, C. J., and Weatherston, J., 1976, Sex pheromone of the eastern spruce budworm: Optimum blend of trans and cis-11- tetradecenal, Can. Entomol., 108: 1285.CrossRefGoogle Scholar
  9. Silk, P. J., Tan, S. H., Wiesner, C. J., and Ross, R. J., 1980, Sex pheromone chemistry of the eastern spruce budworm, Choristoneura fumiferana, Environ. Entomol., (In press).Google Scholar

Copyright information

© Plenum Press, New York 1981

Authors and Affiliations

  • C. J. Sanders
    • 1
  1. 1.Canadian Forestry ServiceGreat Lakes Forest Research CentreSault Ste. MarieCanada

Personalised recommendations