1-8 of 8 Books

Biology and control of hemlock woolly adelgid
By Mark S. McClure

Managing hemlock woolly adelgid in ornamental landscapes
By Mark S. McClure
Anatomical changes in the secondary phloem of grand fir (Abies grandis (Dougl.) Lindl.), induced by the balsam woolly aphid (Adelges piceae Ratz.)
Anatomical changes in the secondary phloem of grand fir (Abies grandis (Dougl.) Lindl.), induced by the balsam woolly aphid (Adelges piceae Ratz.)
By Roy H. Saigo
Common woolly aphids and adelgids of conifers
Common woolly aphids and adelgids of conifers
By R. W. Duncan

Infestation characteristics of the balsam woolly aphid in the Pacific Northwest
By R. G. Mitchell
Studies of the balsam woolly aphid, Adelges Piceae (Ratz.) (Homoptera: Phylloxeridae) and its effects on balsam fir, Abies Balsamea (L.) Mill
Studies of the balsam woolly aphid, Adelges Piceae (Ratz.) (Homoptera: Phylloxeridae) and its effects on balsam fir, Abies Balsamea (L.) Mill
By R. E. Balch
Studies on predators of Adelges spp. in the Himalayas
Studies on predators of Adelges spp. in the Himalayas
By V. P. Rao,Ghani, M. A. Ph.D.
Adelgids attacking spruce and other conifers
Adelgids attacking spruce and other conifers
By Joan M. Davies