oD, Report OF THE BOTANICAL DEPARTMENT OF THE 
RESULTS IN 1907. 
TaBLE XI.—YIELD BY SERIES AT GENEVA IN 1907. 

i a 



Series. - Rows. Dates of spraying. Yield per acre. 
Bu. lbs. 
Te os Statens: 1,4, 7,10 and 138.| July 15, Aug. 9 and 24..... 220 ys 
Ah te, GS. 2, 5, 8, ll and 14.| July 15, 24, Aug. 9, 24 and 
; pepe 17 it. suka ke eee 249 50 
ALS eo as Be. 3, 6, 0, 12 and 15.) WWet sprayed: «1.2. Shane eke O 10 


Increase in yield due to spraying three times, 44 bu. per acre. 
Increase in yield due to spraying five times, 73% bu. per acre. 
Late blight and rot were wholly absent and early blight 
appeared only in traces. There was some tip burn and a light 
attack of flea beetles. Considering the seemingly small amount 
of damage done by blight and insects it is remarkable that 
spraying should have increased the vield so much. 
TABLE XII.—Y1eLp BY SERIES AT RIVERHEAD IN 1907. 


Series. Rows. Dates of spraying. Yield per acre. 
Bu. lbs. 
CE pA, 1,4, 7,10 and 13-| June 19, July 25 and Aug. 15) 186 45 
LD. eps 2) Dy Oy Pand 14.) June 19) guly 2017, eae: 
15. and QO mk vor Ris Eee 200 5 
Ede S oein ee 3; 6, 9; 42 and 15 .|" Not.sprayedy...s.0%.s8 eae 168 50 


Increase in yield due to spraying three times, 18 bu. per acre. 
Increase in yield due to spraying sia times, 314 bu per acre. 
There was some early blight, but no late blight. Flea 
beetles were plentiful and caused much damage. The large 
yield of the sprayed rows is to be attributed to their partial 
protection against flea beetles and early blight. 
