A riker mount containing Cooley spruce gall adelgid (Aselges cooleyi) on Picea pungens ‘Hoopsii’ (Hoops blue spruce). Specimen collected on grid location I-51/15-70 at The Morton Arboretum.
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.