Canadian Forest Service Publications
Studies of predators of the balsam woolly aphid Adelges piceae (Ratz.) (Homoptera: Adelgidae). IX. Pullus impexus (Muls.) (Coleoptera: Coccinellidae), an introduced predator in eastern Canada. 1961. Clark, R.C.; Brown, N.R. The Canadian Entomologist 93: 1162-1168.
Year: 1961
Issued by: Atlantic Forestry Centre
Catalog ID: 7025
Language: English
Availability: Order paper copy (free)