Inherent Characteristics of Codling Moth Pheromone Traps

Rubber septa and thermoplastic hollow fibers up to 4 weeks in age attracted moths in a comparable manner. In comparisons made with fresh septa after 1, 2, 4, 8, 12 and 16 weeks of aging, rubber septa maintained a consistent level of attraction through at least 16 weeks. Placement of the septa in the sticky adhesive did not affect the attraction of the septa over a 9 week period. Liners placed in the tops of traps did not capture any moths, and liners in the trap bottoms became less efficient after 3-4 weeks. This loss can be mainly attributed to monitoring methods which cause the sticky adhesive to be removed as moths are removed from the traps.