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The Status of Spraying Practices for the Control of Plant Lice in Apple Orchards
Forest Milo Blodgett
Fred Carlton Stewart
Orrin Morehouse Taylor
George Henry Howe
James Duncan Brew
Joseph Frederick Barker
Mancel Thornton Munn
Percival John Parrott
U. P. Hedrick
出版
New York Agricultural Experiment Station
, 1915
URL
http://books.google.com.hk/books?id=28FQAQAAMAAJ&hl=&source=gbs_api