222 



BULLRTIN 253. 



and appeared as small spots mostly on the upper surface of the leaf. On 

 Monday night, July 15, the first rot was found on the berries. This 

 appeared to be a small epidemic. More rot showed Tuesday morning. 

 On sprayed rows, it was necessary to hunt to find a rotted berry. On 

 unsprayed rows the rot was more evident. For about a week, the berries 

 continued to rot slightly. On July 22, another slight epidemic began 

 when a number of the berries rotted. One could find a handful in walk- 

 ing along a row. Following this was a period of dry weather during 



Fig. j86 — A cover-crop of buckwheat. 



which very little rot appeared. Another small epidemic seemed to 

 sweep over the vineyard about the 20th of September. 



The grapes were picked October 10-17. All the fruit was picked 

 from each plat and weighed, giving total weight. Grapes were then run 

 through the packing house and graded, the weight of the commercial 

 grade, and the weight of the culls being obtained. From these weights 

 the percentages were computed. They are given in the following table: 



