Methoxyfenozide (Intrepid 2F, produced by Dow AgroSciences) belongs to a novel class of insect growth regulators, ecdysone-agonists that mimic natural ecdysone and induce a premature, lethal molt in lepidopterous larvae. (Retnakaran et al. 2003). Methoxyfenozide has also shown to have sub-lethal effects on some adult tortricid moths by decreasing their mean fecundity and fertility (Sun et al. 1999). In addition, Hoelscher and Barrett (2003 a, b) demonstrated that in laboratory wind tunnel experiments exposure to surfaces treated with methoxyfenozide had a negative impact on male codling moth, redbanded and obliqubanded leafroller orientation to females. The goal of this study was to determine if field applications of methoxyfenozide would also affect wild codling moth male orientation to traps baited with virgin females and commercial pheromone lures. The exposed wild males displayed a significantly increased responsiveness to traps baited with females and a significantly decreased responsiveness to the traps baited with 1 mg codlemone lures. Present studies include observations on codling moth mating behavior in order to construct an ethogram to determine the impact methoxyfenozide has on codling moth sexual behavior.