76 Report of the Botanist of the 



(7) Notes on experiment at Greenlawn. — The experiment 

 field was situated on the farm of David R. Smith. It was trian- 

 gular in shape and contained nearly one and one-half acres. For 

 a time the stand was perfect and the plants healthy, but later in 

 the season the bacterial or wilt disease caused some unevenness. 

 This is shown in the photograph of the field (Plate XV). After 

 September 13 the yield was light and the pickles had a tendency 

 to be "nubby." This was apparently due to exhaustion of the 

 vines and dry weather. There was very little downy mildew. 

 On September 29 the owner pulled the vines in order to prepare 

 the land for winter wheat. The vines were at that time still 

 green, free from disease and bearing a few pickles. A few 

 " withy" pickles were found where the vines were injured by the 

 wilt disease, but no gummy pickles were found during the entire 

 season. 



the experiment at deer park. 



(1) Preparation and planting. — The field, which contained 

 two acres, was plowed once, then thirty-one tons of well rotted 

 stable manure applied broadcast, after which the field was plowed 

 twice more, each plowing being from five to six inches deep. The 

 ground was thoroughly harrowed just before planting. 



At the time of planting 400 pounds of fertilizer were applied 

 in the hills. The seed 16 (Early Prolific) was planted July 1 in 

 level hills four feet apart in the row, the rows being four feet six 

 inches apart. 



(2) Cultivation and spraying. — The field was cultivated with 

 a cultivator, three times each way, and hoed once around the 

 hills. The vines were sprayed eight times with Bordeaux mix- 

 ture on the following dates: July 22 and 29; August 8, 17 and 22; 

 and September 1, 9 and 19. 



16 The seed was purchased in -Iowa for Early Prolific, but on account of the 

 rank growth of vines and large size of the fruits the owner is of the opinion 

 that the seed was not true to name and that the variety was in reality Long 

 Green, or some similar variety. It is possible, however, that the rank growth 

 of vines and fruit was due to an excess of fertility. 



