. Bulletin of the Department of Agriculture. Agriculture. Bui. 887, U. S. Dept. of Agriculture. Plate I,. Stages of the Pear Borer. ul. Eggs in natural position: much enlarged. -B, Larva, pupa, and cocoon; enlarged. C,D, Empty pupa cases projecting from the bark. E, Adult. F, Cocoons exposed by removing scales of apple barli; enlarged. G, Larva in hibernaculum; slightly 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 origin
. Bulletin of the Department of Agriculture. Agriculture. Bui. 887, U. S. Dept. of Agriculture. Plate I,. Stages of the Pear Borer. ul. Eggs in natural position: much enlarged. -B, Larva, pupa, and cocoon; enlarged. C,D, Empty pupa cases projecting from the bark. E, Adult. F, Cocoons exposed by removing scales of apple barli; enlarged. G, Larva in hibernaculum; slightly 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
