Proverbs, M.D. 1956 Chemical control of the pine needle scale Phenacaspis pinifoliae (Fitch) in British Columbia.. Canadian Entomologist 88(1): 653-655.
Notes: Six chemical preparations are evaluated against this species.
Proverbs, M.D. 1956 Chemical control of the pine needle scale Phenacaspis pinifoliae (Fitch) in British Columbia.. Canadian Entomologist 88(1): 653-655.
Notes: Six chemical preparations are evaluated against this species.