Brown, C.E. 1958 Dispersal of the pine needle scale Phenacaspis pinifoliae (Fitch) (Diaspididae: Homoptera).. Canadian Entomologist 90: 685-690.
Notes: Wind dispersal most probable; distance traveled by female nymphs four times that of male nymphs.
Brown, C.E. 1958 Dispersal of the pine needle scale Phenacaspis pinifoliae (Fitch) (Diaspididae: Homoptera).. Canadian Entomologist 90: 685-690.
Notes: Wind dispersal most probable; distance traveled by female nymphs four times that of male nymphs.