Life history of the codling moth in the Grand Valley of Colorado
By: by E.H. Siegler and H.K. Plank in cooperation with the Colorado Agricultural Experiment Station
Contributors: Plank, H. K. (Harold Kaufman), 1891-; Colorado Agricultural Experiment Station
Series: Bulletin / United States Department of Agriculture -- no. 932; Bulletin of the U.S. Department of Agriculture -- no. 932.
Publisher: U.S. Dept. of Agriculture
Published: 1921
Place of publication: Washington, D.C
Language: eng
Number of pages: 119
Subjects: Codling moth; Fruit; Diseases and pests
Notes: Caption title.

"September 20, 1921."

"Professional paper."