CONNECTICUT 



AGRICULTURAL EXPERIMENT 

 STATION 



REPORT OF THE BOTANIST 



1909 and 1910 

 G. R CLINTON, Sc.D. 



PAGE 



I. Notes on Plant Diseases of Connecticut, 713 



A. Diseases in Relation to Weather in 1909 and 1910, . . . 713 



B. New Observations on Diseases Previously Reported, . . 716 



C. Diseases or Hosts Not Previously Reported, 723 



II. Spraying Potatoes in Dry Seasons 739 



III. Oospores of Potato Blight, Phytophthora infestans, 753 



ISSUED JUNE, 1911 



