. Agriculture of Maine : ... annual report of the Commissioner of Agriculture of the State of Maine. Agriculture -- Maine. 208 AGRICULTURE OF MAINE. mens of this common pest sent in that I have thought best to illustrate the life history and give a short description of the. OYSTERSH^LL BARK LOUSE. , Fig. 16. Lepidosaphes ulmi: a, b, females; c, scales on twig' d, male scale. ;Howara. Bulletin 3L Div. of Entomology, U S. Dept. of Agri.) same. The cuts are self explanator)-. It is easily recognized by being oyster shaped, thus the name, although the male scale is much smaller and does not have t
. Agriculture of Maine : ... annual report of the Commissioner of Agriculture of the State of Maine. Agriculture -- Maine. 208 AGRICULTURE OF MAINE. mens of this common pest sent in that I have thought best to illustrate the life history and give a short description of the. OYSTERSH^LL BARK LOUSE. , Fig. 16. Lepidosaphes ulmi: a, b, females; c, scales on twig' d, male scale. ;Howara. Bulletin 3L Div. of Entomology, U S. Dept. of Agri.) same. The cuts are self explanator)-. It is easily recognized by being oyster shaped, thus the name, although the male scale is much smaller and does not have the peculiar curved shape like the female. During the fall and winter the eggs may be found safely hidden under the scale. In the early summer these hatch into minute freely crawling young lice. They wander about over the tree and in a short time locate on the twigs and branches, becoming fixed; a new scale forming over them. The males alone have wings. The females lay their eggs in September, dying soon after. There is but one brood each year in Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original Maine. Dept. of Agriculture. Augusta : [State of Maine, Dept. of Agriculture
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