. Bulletin of the Department of Agriculture. Agriculture; Agriculture. UNITED STATES DEPARTMENT OF AGRICULTURE BULLETIN No. 866 Contribution from the Bureau of Chemistry CARL L. ALSBERG, Chief Washington, D. C. August 24,1920 PICKERING SPRAYS By F. C. COOK, Physiological Chemist Insecticide and Fungicide Laboratory CONTENTS Introduction Results of Previous Investigations Purpose of Present Investigation Preparation of Sprays Used . Results of Investigation: Potatoes Grapes Page 1 2 6 7 8 . 22 Page Results of Investigation—continued. Apples 29 Cranberries 37 Suggestions for the Preparation
. Bulletin of the Department of Agriculture. Agriculture; Agriculture. UNITED STATES DEPARTMENT OF AGRICULTURE BULLETIN No. 866 Contribution from the Bureau of Chemistry CARL L. ALSBERG, Chief Washington, D. C. August 24,1920 PICKERING SPRAYS By F. C. COOK, Physiological Chemist Insecticide and Fungicide Laboratory CONTENTS Introduction Results of Previous Investigations Purpose of Present Investigation Preparation of Sprays Used . Results of Investigation: Potatoes Grapes Page 1 2 6 7 8 . 22 Page Results of Investigation—continued. Apples 29 Cranberries 37 Suggestions for the Preparation of Pick- ering Spray on a Commercial Scale . 42 Summary 44 Bibliography ' 46. WASHINGTON GOVERNMENT PRINTING OFFICE 1920. 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 Dept. : Supt. of Docs. , G. P. O.
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Keywords: ., bookauth, bookcentury1900, bookdecade1910, booksubjectagriculture
