Browsing by Author "Hopkins, A. D. (Andrew Delmar), 1857-1948"

Black check in western hemlock

Hopkins, A. D. (Andrew Delmar), 1857-1948; United States. Bureau of Entomology (Washington, D.C. : U. S. Department of Agriculture, Bureau of Entomology, 1905-05)

The Black Hills beetle

Hopkins, A. D. (Andrew Delmar), 1857-1948; United States. Bureau of Entomology (Washington, D.C. : U. S. Department of Agriculture, Bureau of Entomology, 1905)

Catalogue of exhibits of insect enemies of forests and forest products at the Louisiana Purchase Exposition, St. Louis, Mo., 1904

Hopkins, A. D. (Andrew Delmar), 1857-1948; United States. Division of Entomology (Washington, D.C. : U. S. Department of Agriculture, Division of Entomology, 1904)

Insect enemies of forest reproduction

Hopkins, A. D. (Andrew Delmar), 1857-1948; United States. Dept. of Agriculture (Washington, D.C. : U. S. Department of Agriculture, 1905)

Insect enemies of the pine in the Black Hills Forest Reserve : an account of results of special investigations, with recommendations for preventing losses

Hopkins, A. D. (Andrew Delmar), 1857-1948; United States. Division of Entomology (Washington, D.C. : U. S. Department of Agriculture, Division of Entomology, 1902)

Insect enemies of the spruce in the Northeast : a popular account of results of special investigations, with recommendations for preventing losses

Hopkins, A. D. (Andrew Delmar), 1857-1948; United States. Division of Entomology (Washington, D.C. : U. S. Department of Agriculture, Division of Entomology, 1901)

Insect injuries to forest products

Hopkins, A. D. (Andrew Delmar), 1857-1948; United States. Bureau of Entomology. (Washington, D.C. : U. S. Department of Agriculture, 1904)

Insect injuries to hardwood forest trees

Hopkins, A. D. (Andrew Delmar), 1857-1948; United States. Dept. of Agriculture (Washington, D.C. : U. S. Department of Agriculture, 1903)

The locust borer and methods for its control

Hopkins, A. D. (Andrew Delmar), 1857-1948; United States. Bureau of Entomology (Washington, D.C. : U. S. Department of Agriculture, Bureau of Entomology, 1907-02)

Notable depredations by forest insects

Hopkins, A. D. (Andrew Delmar), 1857-1948; United States. Dept. of Agriculture (Washington, D.C. : U. S. Department of Agriculture, 1907)

On the study of forest entomology in America

Hopkins, A. D. (Andrew Delmar), 1857-1948; United States. Division of Entomology (Washington, D.C. : U.S. Dept. of Agriculture, Division of Entomology, 1902-06)

Pinhole injury to girdled cypress in the South Atlantic and Gulf states

Hopkins, A. D. (Andrew Delmar), 1857-1948; United States. Bureau of Entomology (Washington, D.C. : U. S. Department of Agriculture, Bureau of Entomology, 1907-01)

Powder-post injury to seasoned wood products

Hopkins, A. D. (Andrew Delmar), 1857-1948; United States. Division of Entomology (Washington, D.C. : U. S. Department of Agriculture, Division of Entomology, 1903-11)

Preliminary report on the insect enemies of forests in the Northwest : an account of the results gained from a reconnaissance trip made in the spring and early summer of 1899

Hopkins, A. D. (Andrew Delmar), 1857-1948; United States. Division of Entomology (Washington, D.C. : U. S. Department of Agriculture, Division of Entomology, 1899)

The redwood

Hopkins, A. D. (Andrew Delmar), 1857-1948; Fisher, Richard Thorton, 1876-1934; Von Schrenk, Hermann, 1873-1953; United States. Bureau of Forestry (Washington, D.C. : U.S. Dept. of Agriculture, Bureau of Forestry, 1903)

Some insects injurious to forests. pt. I, The locust borer

Hopkins, A. D. (Andrew Delmar), 1857-1948; United States. Bureau of Entomology (Washington, D.C. : U. S. Department of Agriculture, Bureau of Entomology, 1906)

Some insects injurious to forests. pt. III, Additional data on the locust borer

Hopkins, A. D. (Andrew Delmar), 1857-1948; United States. Bureau of Entomology (Washington, D.C. : U. S. Department of Agriculture, Bureau of Entomology, 1907-03)

Some of the principal insect enemies of coniferous forests in the United States

Hopkins, A. D. (Andrew Delmar), 1857-1948; United States. Dept. of Agriculture (Washington, D.C. : U. S. Department of Agriculture, 1902)

The white-pine weevil

Hopkins, A. D. (Andrew Delmar), 1857-1948; United States. Bureau of Entomology (Washington, D. C. : U. S. Department of Agriculture, Bureau of Entomology, 1907-06)

Browsing by Author "Hopkins, A. D. (Andrew Delmar), 1857-1948"

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Browsing by Author "Hopkins, A. D. (Andrew Delmar), 1857-1948"

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