The larvae feed on "Juglans regia". It feeds on plants such as "Ailanthus altissima", "Juglans regia", "Zanthoxylum simulans", and "Quercus glauca". "Juglans regia" 'Buccaneer' produces an abundant crop of seeds. The Persian walnut, "Juglans regia", is one of the major nut crops of the world. The larvae feed on "Pterocarya rhoifolia", "Juglans ailanthifolia", "Juglans mandschurica" and "Juglans regia". Trees tested were walnut tree ("Juglans regia") and cherry tree ("Prunus avium"). In at least one plant, "Juglans regia", progesterone has been detected. "[[Juglans regia]]" 2.92; and are examples of the three categories.