The effect of height and density of sex pheromone traps on captures of male fruittree leafroller, <i>Archips argyrospilus</i> and threelined leafroller, <i>Pandemis limitata </i>(Lepid.: Tortricidae)

Authors

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

Keywords:

pheromone traps, fruittree leafroller moth, <i>Archips argyrospilus</i>, threelined leafroller, <i>Pandemis limitata</i>, Lepidoptera, Tortricidae

Abstract

When sex pheromone traps in the upper third of a standard apple tree were compared with traps at head height, the upper traps captured far more fruittree leafroller moths (<i>Archips argyrospilus</i> (Walker) than the lower traps. The results with threelined leafroller (<i>Pandemis limitata</i> (Rob.) were reversed: traps at head height captured nearly twice as many moths as traps in the upper portion of a tree. Trap captures increased with trap/area up to 1 trap/ha. This density is probably sufficient for monitoring purposes.

References

Madsen, H.F. and J.M. Vakenti. 1973. The influence of trap design on the response of codling moth (Lepidoptera: Olethreutidae) and fruittree leafroller (Lepidoptera: Tortricidae) to synthetic sex attractants. J. Entomol. Soc. Brit. Columbia 70:5-8.

Madsen, H.F. and B.J. Madsen. 1980. Response of four leafroller species (Lepidoptera: Tortricidae) to sex attractants in British Columbia orchards. Can. Ent. 112:427-430.

McNalley, P.S. and M.M. Barnes. 1980. Inherent characteristics of codling moth pheromone traps. Environ. Entomol. 9:538-542.

Riedl, H. and B.A. Croft. 1974. A study of pheromone trap catches in relation to codling moth damage. Can. Ent. 106:527-537.

Riedl, H., S.A. Hoying, W.W. Barnett, and J.E. DeTar. 1979. Relationship of within-tree placement of the pheromone trap to codling moth catches. Environ. Entomol. 8:765-769.

Riedl, H. 1980. The importance of pheromone trap density and trap maintenance for the development of standardized monitoring procedures for the codling moth (Lepidoptera: Tortricidae). Can. Ent. 112:529-544.

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Published

2019-09-06