New York Agricultural Experiment Station. 217 



RESULTS IN 1908. 

 Table XIII. — Yield by Sebies at Geneva in 1908. 



Increase in yield due to spraying three times, 29^ hu. per acre. 

 Increase in yield due to spraying six times, 39 hu. per acre. 



There was no early blight, no late blight and no rot. Flea 

 beetles caused slight damage to the unsprayed rows, most of which 

 occurred after September 1st. The chief trouble was tip bum, 

 which was quite severe. The sprayed rows of Series II outlived 

 the unsprayed rows of Series III by about five days owing, ap- 

 parently, to the smaller amount of tip burn and flea beetle injury 

 on the sprayed rows. 



Table XIV. — Yield by Series at Rivbbhead in 1908. 



Increase in yield due to spraying three times, lOf hu. per acre. 

 Increase in yield due to spraying five times, 15^ hu. per acre. 



In this experiment there was some early blight and a moderate 

 attack of flea beetles, but no late blight and no rot. During July 

 considerable damage was done by aphids which were not checked 

 by the spraying. 



