REPORT OF COMMITTEE ON PUBLICATION 17 



IV. DISEASES AND INJURIOUS INSECTS. 



Grape Onthracnose in America. 



C. L. Shear, Bureau of Plant Industry, Washington, D. C. 

 Powdery Mildew of Grapes and Its Control in the United States. 



Donald Reddick, Cornell University, Ithaca, New York, and 



F. E. Gladwin, Fredonia, New York. 



Studies in "Plasmopara viticola" (Downey Mildew of Grapes). 



C. T. Gregory, Cornell University, Ithaca, New York. 

 Action of Fungicides on Plants. 



O. R. Butler, New Hampshire College, Durham, New Hampshire. 

 Sulfur Fungicides. 



G. W. Gray, Insecticide Laboratory, University of California, 



Berkeley, California. 



Insects Injurious to the Vine in California. 



H. J. Quayle, Citrus Experiment Station, Riverside, California. 

 Phylloxera in California. 



R. L. Nougaret, Walnut Creek, California. 

 Some Injurious Grape Insects 



F. Z. Hartzell, Vineyard Laboratory, Fredonia, New York. 



(a) The Grape Root Worm. 



(b) The Grape Leaf Hopper. 



(c) The Grape Flea Beetle. 



(d) The Rose Chafer. 

 The Grape Berry Moth. 



W. H. Goodwin, Assistant Entomologist, Wooster, Ohio. 

 Two Destructive Grape Insects of the Appalachian Region. 



Fred E. Brooks, Entomological Assistant, United States Department 

 of Agriculture, Washington, D. C. 



V. CHEMICAL AND PRODUCTS PAPERS. 



The Engineer's Part in the Advancement of the Viticultural Industry. 

 E. T. Meakin, 409 Sixth Street, San Francisco, California. 



Results of the Application of Pure Yeast and SO in California Wineries in 

 1913-1914. 



W. V. Cruess, University of California, Berkeley, California. 



A Rapid Method of Volatile Acid Determination. 



Cruess and Bettoli, University of California, Berkeley, California. 



Influence of Composition on Effervescence of Champagne; Preliminary 

 Investigations. 



R. W. Bettoli and E. J. La Belle, Laboratory Italian-Swiss Colony, 

 San Francisco. 



