New YorK AGRICULTURAL EXPERIMENT STATION. S7 
On July 30 the “bugs” were so numerous on the unsprayed 
rows that they would soon have done much damage unless 
killed, and hence it was necessary to treat series III a second 
time with paris green in lime water. As there were no “bugs ” 
on the other two series, no paris green was used on them, but 
series II] was sprayed for blight with bordeaux alone. The 
treatment for “bugs” on series III was effective. They were 
nearly all dead the following day and there was no further 
trouble from “bugs” during the remainder of the season. 
The punctures of flea beetles® were fairly abundant as early as 
July 10, but little damage was done by these insects until 
toward the close of August, at which time they attacked the un- 
Sprayed rows and hastened, somewhat, the death of the plants. 
The sprayed rows were practically free from flea-beetle injury. 
The plants suffered neither from drought nor from wet weather, 
and there was no early blight, Alternaria solani. Late blight, 
Phytophthora infestans, first appeared on the unsprayed rows 
July 28, but made slow progress. On August 25 the unsprayed 
rows began to look a little brown, as viewed by one standing at 
the end of the field. Upon entering the field and making a 
closer examination it was found that the unsprayed plants had a 
trimmed-up appearance, due to the death of many of the lower 
leaves. There were also some yellow leaves. At the same time 
the foliage on the sprayed rows was practically perfect, there 
being only occasionally a blighted leaf. The lower leaves, clear 
to the ground, were alive and perfect and none yellow. The 
color of the sprayed plants was a darker green than that of the 
unsprayed plants. There was, apparently, no difference between 
the plants sprayed three times and those sprayed every two 
weeks. 
During the last week in August the unsprayed plants deteri- 
orated rapidly and the contrast in appearance between the 
sprayed and unsprayed rows became marked. This was due to 
the combined attacks of late blight and flea-beetles. However, 
as late as August 28, one month after the first appearance of 
blight, scarcely any of the plants had died, although they com- 
menced to die very soon after that date. 
5Crepidodera cucumeris. 
