Navel Orangeworm in Southern Central Valley Walnuts: Source, Seasonal Abundance, and Impact of Mating Disruption

1) Characterize seasonal abundance of navel orangeworm in southern Central Valley walnuts, and compare these data with codling moth abundance and walnut infestation by these two pests. 2) Estimate the relative contribution of residents and immigrants to navel orangeworm populations in orchards in this region. 3) Examine the impact of mating disruption on reproduction and damage of navel orangeworm in the southern Central Valley.