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Creator:: Hopkins, A. D. (Andrew Delmar), 1857-1948 and United States. Department of Agriculture
Abstract:: Reprint from Yearbook of Department of Agriculture for 1902.
Resource Type:: Journal
Full Text:: 275 Characteristic features of the infested and dead timber 279 Methods of combating the pest

Creator:: Hopkins, A. D. (Andrew Delmar), 1857-1948 and United States. Division of Entomology
Resource Type:: Technical Report
Full Text:: , for furnishing transportation and guide from Colebrook, N. H., across the State to the steamboat

Creator:: Chittenden, F. H. (Frank Hurlbut), 1858-1929 and United States. Division of Entomology
Abstract:: Recent years have witnessed extensive destruction of forest growth, particularly of pine, spruce, and chestnut, in portions of the United States east of the Rocky Mountains. This injury has been very generally attributed to insects, and there is evidence that certain wood and bark-boring species have largely contributed to the...
Resource Type:: Technical Report
Full Text:: to a fungus disease, and it is possible that such is the case. The chestnut-boring species, however

Creator:: Hopkins, A. D. (Andrew Delmar), 1857-1948 and United States. Bureau of Entomology
Resource Type:: Technical Report
Full Text:: which there was not a suffi- cient demand in the State of South Dakota; and since a special pro- vision

Creator:: Hopkins, A. D. (Andrew Delmar), 1857-1948 and United States. Division of Entomology
Resource Type:: Technical Report
Full Text:: .—Insect enemies of forest trees in the northwestern and north- eastern United States 15 Section II

Creator:: Hopkins, A. D. (Andrew Delmar), 1857-1948 and United States. Bureau of Entomology
Resource Type:: Technical Report
Full Text:: Hoquiam, Aberdeen, Satsop, Copales, Kent, Puyallup, North Bend, South Bend, and Seattle, in the State of

Creator:: Hopkins, A. D. (Andrew Delmar), 1857-1948 and United States. Bureau of Entomology
Abstract:: The Bureau of Entomology has been conducting systematic and economic investigations of the weevils infesting the bark of the trunk and terminal shoots of conifers in the United States, the results of which will be published in the regular technical and popular bulletins ; but since these can not be...
Resource Type:: Technical Report
Full Text:: escape of weevils. (Original.) larvae, pupa, and adults. Some of the larvae apparently die from disease

Creator:: Hopkins, A. D. (Andrew Delmar), 1857-1948 and United States. Division of Entomology
Resource Type:: Technical Report
Full Text:: for the multiplication and spread of the pest to the healthy trees in adjoining forests. Leaving

Creator:: Hopkins, A. D. (Andrew Delmar), 1857-1948 and United States. Division of Entomology
Resource Type:: Technical Report
Full Text:: forest lands in various portions of the United States, and particularly hi the North and Northwestern

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