* Berry RE (1998) Western yellowstriped armyworm. Spodoptera praefica. Insects and Mites or Economic Importance in the Northwest. Oregon State University Bookstore, p 221 (online modified version). http://uspest.org/potato/wystriparmyworm.pdf
* Hoover GA, Biddinger DJ (2014) Omnivorous leafroller, Platynota stultana (Lepidoptera: Tortricidae). Penn State Extension Pest Alert. https://ento.psu.edu/files/omnivorous-leafroller/view