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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:: enemies 18 Insects 18 Birds 18 Diseases of insects 18 Secondary enemies of the trees, and

Creator:: Hopkins, A. D. (Andrew Delmar), 1857-1948 and United States. Division of Entomology
Resource Type:: Technical Report
Full Text:: the Department was called to a serious trouble affecting the spruce trees, in March, 1900, and Dr

Creator:: Hopkins, A. D. (Andrew Delmar), 1857-1948 and United States. Bureau of Entomology
Resource Type:: Technical Report
Full Text:: destructive work 35 Natural enemies 35 Insects 35 Disease and sap flow . 36 Methods of control 36

Creator:: Hopkins, A. D. (Andrew Delmar), 1857-1948 and United States. Bureau of Entomology
Resource Type:: Technical Report
Full Text:: , p. 43. 1905. Felt, E. P.—Insects affecting park and woodland trees. Mem. 8, N. Y. State Mus. Nat

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:: trunk and terminal shoots of conifers in the United States, the results of which will be published in

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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