264 
In Chart 1, these same details of the seasonal history are shown. An 
attempt is made here to show in graphic form the relative numbers of 
pupe, adults, eggs, young larve, and mature larve that appeared from 
day to day, all of which have been averaged for three-day periods. The 
chart is divided vertically into columns for the months from April to 
October and longitudinally by lines representing elevations above certain 
base lines, the degree of elevation being represented by the figures in*the 
column to the left of the chart. The average numbers of pupe, adults, 
eggs, young larve and mature larve which appeared daily during each of 
the three-day periods are represented by the black vertical columns. At 
the top of the chart the three broods of pupz are represented, next comes 
the three broods of moths, then the eggs, then young larvee, and lastly, the 
larvee leaving the fruit. The three broods are indicated very distinctly in 
the parts of the chart representing different stages. In the lower part of 
the chart the mean daily temperatures above 50° are represented, also 
averaged for three-day periods. 
RECORDS FOR OTHER POINTS THAN OLNEY 
Thus far the discussion has been confined almost entirely to the 
Olney records. A few words additional will suffice for the less complete 
records at Ozark, Plainview, and Princeton. The codling-moth was so 
scarce at the last-mentioned place as to render the records of little value. 
A distinct third generation was detected at Ozark the same as at Olney. 
Since only band records were kept at Plainview no evidence of the third 
generation was noticed there, though it doubtless occurred and would 
have been detected if a daily, or even a weekly, record of the emergence of 
moths from the larve collected under bands had been kept.. 
The first moths observed at Ozark emerged April 28, or one day 
later than at Olney. The first larve of the first generation were taken 
under bands at Ozark June 2, at Olney June 12, and at Plainview June 
25. The first of the second-brood moths emerged at Ozark June 20, or 
8 days before the first moths of this brood emerged at Olney, and the 
first of the second-brood larvee hatched at Ozark July 2, or 9 days before 
they hatched at Olney. 
GENERAL REMARKS ON THE SEASON 
March and April, 1915, were dry months and much warmer than 
normal, causing the pupation of the hibernating larve to begin early, but 
during May, June, July, and August the temperature averaged from 4 to 
7.5 degrees cooler than normal, and the rainfall for these months was 
much above normal. These months were characterized by many cool, 
cloudy, rainy days, all of which tended to retard the development of the 
codling-moth, and to reduce the numbers of each generation that sur- 
vived. This threw the beginning of the pupation of the first third-brood 
pupze as late as August 7, which was only two weeks before pupation 
ended for the season. For this reason the third generation was very 
small. 
