Fig. 1. — Grapes or plat spraveii with 4-3-50 Bordeaux Mixture, 

 Michigan Photographed Sept. 12, 1908. Les.s than 5-100 of 1 

 Lon A. Hawkins. 



Mr. Gidding.s' vineyard, Lawton, 

 ^0 loss -from blackrbt. — Photo by 



Fig. 2. — Grapes on unspraved check plat, Mr. Giddings' vinevard, Lawton, Michigan Pliotograiiheil 

 Sept. 12, 1908. 28.3 per cent of the fruit destroyed by blackrot. — Photo by Lon A. Hawkins. 



PLATE III. 



