Pheromone-studied
Guides
Archips semiferanus
Oak Leafroller Moth, Oak Leaf Roller, Oak Leafroller
Archips semiferanus is a tortricid moth whose larvae are major defoliators of oak trees in eastern North America. The species produces one generation annually, with eggs laid in July, overwintering, and hatching the following spring. Larvae roll oak leaves with silk to form shelters, feeding inside until pupation in June. Outbreaks can cause extensive tree mortality, with over one million acres defoliated in Pennsylvania during the late 1960s and early 1970s. The female sex pheromone has been studied extensively and contains (Z)-11-tetradecenyl acetate as a primary component.