OBSERVATIONS ON LECANIUM CORNI BOUCHE, and PHYSOKERMES PICEÆ Schr

• 1 September 1917
• journal article
• Published by Cambridge University Press (CUP) in The Canadian Entomologist
• Vol. 49  (9) , 309-320
• https://doi.org/10.4039/ent49309-9

Abstract

Keywords

• PICEÆ
• PICEÃ
• FENTON
• LECANIUM CORNI
• BOUCHE
• PHYSOKERMES
• SCHR OBSERVATIONS