Powdery mildew (Phyllactinia guttata) on Quercus macrocarpa Michx. (bur oak) (3.91936)
Date: August 2 2002Creator: G., Dean
Type: Specimen
Description:A riker mount containing Powdery mildew (Phyllactinia guttata) on Quercus macrocarpa Michx. (bur oak).
These specimens are available for checkout via the Plant Pathology Lab of The Morton Arboretum. For more information, fill out the form here and an Arboretum staff member will contact you.