. Bulletin of the Department of Agriculture. Agriculture. Figs. 1 and 2.—Sugar-Pine Seed Trees on Burned Area Near Colestin, Oreg. Photographs were made in July, 1914. The area was burned in 1910, destroying all young growth and much of the mature timber. Although the trees have put on several good crops since that date, there are scarcely any sugar-pine seedlings on the area. The seed crops have been repeatedly attacked by the sugar-pine cone beetle. (Original.). Fig. 3.—Cones on Ground Under Seed Trees. The large opened cones are normal. The small cones have been killed by the cone beet
. Bulletin of the Department of Agriculture. Agriculture. Figs. 1 and 2.—Sugar-Pine Seed Trees on Burned Area Near Colestin, Oreg. Photographs were made in July, 1914. The area was burned in 1910, destroying all young growth and much of the mature timber. Although the trees have put on several good crops since that date, there are scarcely any sugar-pine seedlings on the area. The seed crops have been repeatedly attacked by the sugar-pine cone beetle. (Original.). Fig. 3.—Cones on Ground Under Seed Trees. The large opened cones are normal. The small cones have been killed by the cone beetle. (Original.) WORK OF CONE BEETLES IN THE CONES OF SUGAR 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 United States. Dept. of Agriculture. [Washington, D. C. ?] : The Department : Supt. of Docs. , Govt. Print. Off.
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Keywords: ., bookcentury1900, bookdecade1910, booksubjectagriculture, bookyear
