Lecanium scale
Glendenning, R.
Lecanium scale An Insect affecting fruit and shade trees on the pacific coast - Ottawa 1931 - 1-4 p. - Insect, Fruit Canada Department of Agriculture. Circular No. 77 .
Lecanium scale An Insect affecting fruit and shade trees on the pacific coast - Ottawa 1931 - 1-4 p. - Insect, Fruit Canada Department of Agriculture. Circular No. 77 .