6 DECIDUOUS FRUIT INSECTS AND INSECTICIDES, 
TaBLeE V.—Life of spring brood of moths—Cage I. 
Moths emerged and put into 
Moths died. | 
cage. | nates Eggs laid (at night). 
life of 
| moths. 
Date. Number. Date Number. | Date. Number. 
| 
ATA Beem eciy ec === Us ge Bees accor 1 April 19 23 
7.Njoy a a eae e cee 2 |; April 20..........- 1 April 24 ra 46 
Ap TING Es hee My) CA pre 222 -o cs eee 1| (Mayen Noe oeen sees 16 
ADT ccdcnce wes 2 || April 24.-.......-. 4 
IATL S ae cee 4))| Aprili28----- 5-2. 2 
ca ee eo re fess ea 3 
TIL2O: see cSecel eee PA DEIUGOre seestasee 5 
eon Seam B ||Mars ticeac ae: y 10-5 days. 
April 23 3t2 sce eens 1S May Qo eos S32 Seca 1 
MAYises Jo sccencee on 
Movaleeecece SON May4a-5- os ce 3 | 
May overasct sanece 1 
Mayi0 oon uoeaceeaice 2 
Mayal0ee seeeeaeee 1 
iiscaped see eeenae 2 | 
TaBLE VI.—Life of spring brood of moths—Cage II. 
Moths emerged and put into : ; 
cage. Moths died. hoerars Eggs laid (at night). 
life of 
moths. 
Date. Number. Date Number. Date Number. 
PATIO teenies As Miayi2 2202 sosee 2 (May. 4226 oe eaee eee 5 
Apprilose cee anal in| Na yr eee 1 Mary. Sie es 16 
out 2D eee rahe eisai se Zi layioneescerse eee 1 May lesae canes 45 
Fpl INO Se es a 2 Ma WG es ee ect nee 3 
May 2 eee ses. Ou Mia yates cue ae 1 
cael Sree eacrtee-n 2 12 tay Qerssoncssen 2 
EA 2 LAAN oe ae ee 10 ay One a aesnce 5 
Mayall eeuinl cnc 4 [fot days. 
Totaly No \c 40)" Mayil2eneonn nace e 3 
May 1geseeeee see 2 
May 14s) ees 4 
May 15) os2e25 .2ee2 3 
May 16s22 25352 =.) 2 
Mayaliice toate ee ook 2 
Escaped ss is6>--=- 5 
THE FIRST GENERATION. 
FIRST-BROOD EGGS. 
Period of oviposition—Kggs were not laid in the rearing cages as 
early as in the field, because of the lack of a sufficient number of the 
earliest moths. Eggs collected in the field began to hatch April 27, 
which, from the earliest observed periods of incubation, would indicate 
that oviposition had commenced as early as April 7. Apple blossoms 
had nearly all fallen by April 7. Eggs were abundant in the orchard 
on April 27, 67 eggs being collected from the lower branches of 2 trees 
in the space of half an hour. 
Of these, 6 were empty shells, 2 showed 
the black head of the larva and hatched the same day, 36 showed the 
red ring, and 23 were undeveloped. Eggs continued abundant in 
the orchard during the early part of May. 
