Stimmel, J.F. 1980 Seasonal history and occurrence of Fiorinia externa Ferris in Pennsylvania (Homoptera: Diaspididae).. Proceedings of the Entomological Society of Washington 82: 700-706.
Notes: Description; hosts; damage; control.
Stimmel, J.F. 1980 Seasonal history and occurrence of Fiorinia externa Ferris in Pennsylvania (Homoptera: Diaspididae).. Proceedings of the Entomological Society of Washington 82: 700-706.
Notes: Description; hosts; damage; control.