136 FOURTEENTH ANNUAL REPORT. 



Another disease of the apple, which was more abundant 

 than usual, was the leaf-spot, a fungus distinct from the scab 

 and characterized by the presence of numerous small circular 

 brown spots on the leaves. This disease was generally prev- 

 alent and from several localities was reported as causing a 

 serious dropping of the foliage. The brown spot on the 

 Baldwin appeared to be less abundant than on some previous 

 bearing years. 



Peach leaf-curl did not develop to a serious extent. Brown 

 rot of the peach and plum, while serious, did not appear un- 

 usually so. 



Downv mildew of the cucumber and muskmelon, which 

 appeared about the first of August, 1901, and did so much 

 damasre, did not attack the vines this vear till about two weeks 

 later, when it rapidly destroyed them. In our experiments in 

 treating this disease Bordeaux mixture proved very eftective, 

 the sprayed vines remaining in good condition till killed by 

 the frost. 



Of the potato diseases the late blight or rot did much dam- 

 age throughout the state. In the station field spraying with 

 Bordeaux mixture largely prevented the disease as usual. 



H. H. Lamson, 



Bacteriologist. 



