Index Catalog // ScholarsArchive@OSU

Start Over

Filtering by: Publisher Washington, D.C. : U. S. Department of Agriculture Creator United States. Department Of Agriculture

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

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:

segments. Yearbook U. S. Dept. of Agriculture, 1902. PLATE XXVIII. WORK OF THE SPRUCE-DESTROYING
Insect injuries to hardwood forest trees

Creator:

Hopkins, A. D. (Andrew Delmar), 1857-1948 and United States. Department of Agriculture

Abstract:

Reprint from Yearbook of Department of Agriculture for 1903.

Resource Type:

Journal
Insect enemies of forest reproduction

Creator:

Hopkins, A. D. (Andrew Delmar), 1857-1948 and United States. Department of Agriculture

Abstract:

Reprint from Yearbook of Department of Agriculture for 1905.

Resource Type:

Journal

Full Text:

interested in 249 250 YEARBOOK OF THE DEPARTMENT OF AGRICULTURE: such work should have a sufficient
Notable depredations by forest insects

Creator:

Hopkins, A. D. (Andrew Delmar), 1857-1948 and United States. Department of Agriculture

Abstract:

Reprint from Yearbook of Department of Agriculture for 1907.

Resource Type:

Journal

Full Text:

X.50 YEARBOOK OF THE DEPARTMENT OF AGRICULTURE. when they hatch into small, black, hairy