280 
to enter the fruit, we can construct a consistent table showing the approx- 
imate accumulations which indicate the time when the first pupz, adults, 
eggs, and larve of the three generations may be expected to appear. Table 
44, however, for the present, must be regarded as only a somewhat 
close approximation to the correct accumulations. It may be necessary 
to make some changes as a result of further observations. 
TABLE 43—AccUMULATION OF EFFECTIVE DAY-DEGREES DURING STAGES, DURING 
ENTIRE DEVELOPMENT PERIOD, AND DURING THE COMPLETE Lire CYCLE 
Accumulation 
Period 
Minimum Average |Maximum 
Egg 156 163 170 
Larva 527 673 873 
Pupa 256 265 274 
Stages SSS SSS oa meee ee ae epee | 
(Total) 939 1101 1317 
Adult to egg 50 75 250 
Life cycle 989 1176 1567 
Development period 950 1120 1350 
ate nistocy Adult to egg ae 50 75 ; 250 
Life cycle 1000 1195 1600 
Seasonal history Life cycle 1030 
TABLE 44—AccUMULATED EFFECTIVE DAyY-DEGREES WHICH INDICATE THE TIME 
WHEN THE First Eecs, LARVAE, PUPAE, AND ADULTS MAY BE 
EXPECTED TO APPEAR 
Generation Stage Day-degrees — 
a : First pupe 82 
Hibernating First adults 340 
First eggs 392 
F : First larve 550 
First generation First pupe 1082 
First adults 1342 
First eggs 1392 
‘i ti First larve | 1550 
Second generation First pup 2082 
First adults 2342 
i‘ : First eggs 2392 
Third generation First larvee 2550 
