Paret, M. L., T. Momol, L. Ritchie, and H. Dankers. “2011 Florida Plant Disease Management Guide: Apple (Malus domestica): PDMG-V3-05/PG004, Rev. 7/2011”. EDIS, vol. 2011, no. 7, July 2011, doi:10.32473/edis-pg004-2011.