PART II— IN CENTRAL NEW YORK. 



ANTHRACNOSE. 

 POWDERY MILDEW. 

 SHELLING. 



These troubles are found to a limited extent in central New 

 York, but the conditions are so similar to those in Chautauqua 

 county that what applies to one region will apply to the other 

 also. But other diseases have also been present this year and 

 they will be briefly discussed. 



D. Black Rot. 

 (^LcB stadia Bidiuelli.^ 



Black rot was very prevalent in the vineyards situated on the 

 banks of most of the lakes of central New York. Some untreated 

 vineyards lost from fifty to seventy-five per cent, of the crop from 

 this disease, and even some treated vineyards showed a large 

 amount of worthless fruit. Some vineyardists have said that the 

 more the vines were sprayed the worse the rot became and many 

 feel discouraged over the results of the season's work. 



The black rot fungus attacks the berries most severely'. Upon 

 them it first manifests itself, generally when the berry is about 

 full grown, by producing a brown or purplish spot upon one side. 

 This color gradually extends over the entire berry and in the 

 course of a few days the surface assumes a uniform dark brown 

 appearance, which is deeper, however, in the portion first affected. 

 This part begins to turn darker and produces many small, black 

 pimples, these being a very characteristic feature of this disease. 

 The berry now begins to shrink and dry, but it remains hanging 

 on the stem until late in the season, sometimes throughout the 

 winter. 



' ' In the leaf the fungus causes well defined reddish brown 

 spots of varying size, usually rounded in outline, and dispersed 

 on the parts between the principal nerves. These spots usually 



