Grape berry moth Endopiza viteanna is a key direct pest of grapes east of the Rocky Mountains. We have been investigating the use of host plant volatiles by female grape berry moth (GBM) as a basis for developing a lure to trap females. We anticipate such a lure will provide improved information on pest phenology for timing management decisions compared to traps baited with synthetic sex pheromone, which only capture males. We combined solid-phase microextraction (SPME) and GC-EAD to identify 10 candidate volatiles collected from the headspace around shoot tips of Vitis labrusca (cv Concord) that elicited strong antennal responses. A sustained-flight tunnel was used to test attractiveness of different combinations of volatiles at different concentrations to mated and unmated female GBM. Through a process of subtraction and addition we found that a blend of three compounds (an aromatic and two terpenoids) was sufficient to produce upwind oriented flight by mated and unmated female moths. Concentration of the blend was important with the greatest percent of moths orienting to the blend at a concentration of 1 µg per 100 µl. Moreover, moths had a relatively narrow range of acceptable concentration, as measured by percentage of moths orienting to the target, for two of the volatiles. Trials in the flight tunnel and field are ongoing to determine the optimal concentrations of components of the blend, an efficient trap design, and a lure that allows for steady release of the attractant over an extended time period.