San Jose Scale (Diaspidiotus perniciosus) damage on Plum (Prunus domestica) fruit

San Jose Scale (Diaspidiotus perniciosus) damage on Plum (Prunus domestica) fruit
Photographer: Central Science Laboratory, Harpenden Archive, British Crown, Bugwood.orgRights holder: Central Science Laboratory, Harpenden Archive, British Crown, Bugwood.org

From www.ipmimages.org