. Bulletin. Forests and forestry. 70 College of Forestry doing making punctures in the outer bark. After feeding thus for a week or two the females hiy their eggs in the older part of the tree, preferably in wood of two to four years' growth. Most of the eggs are deposited during August and September and hatch in from 18 days to three weeks. The larvae begin to feed upon the inner bark or cambium and so continue till cold weather puts an end to their activities for the season. L^sually the insect passes the winter as a small immature larva just under the bark. With the coming of. Please note t
. Bulletin. Forests and forestry. 70 College of Forestry doing making punctures in the outer bark. After feeding thus for a week or two the females hiy their eggs in the older part of the tree, preferably in wood of two to four years' growth. Most of the eggs are deposited during August and September and hatch in from 18 days to three weeks. The larvae begin to feed upon the inner bark or cambium and so continue till cold weather puts an end to their activities for the season. L^sually the insect passes the winter as a small immature larva just under the bark. With the coming of. 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 State University College of Forestry at Syracuse University. Syracuse, N. Y.
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Keywords: ., bookcentury1900, bookdecade1910, booksubjectforestsandforestry
