Aristiz√°bal, L. F. ., & Buss, E. (2016). Bluegrass Billbug Sphenophorus parvulus Gyllenhal (Insecta: Coleoptera: Curculionidae: Dryophthorinae): EENY 652/IN1133, 4/2016. EDIS, 2016(4), 6. https://doi.org/10.32473/edis-in1133-2016