6 DECIDUOUS FRUIT INSECTS AND INSECTICIDES. 
TaBLeE V.—Life of spring brood of moths—Cage TI. 
Moths emerged and put into ; ? ; 
cage. Moths died. Wirenage Eggs laid (at night). 
life of 
moths. 
Date. Number. Date. Number. Date. Number. 
Jo BE aeacasegis 1 1 ATi OR ere eee 23 
April 15 2 1 a Mjoyab Wet: Re Se te 46 
il 16 1 1 Maeda. teres seem 16 
2 4 
4 2 
1 3 
1 10.5 days. 
15 1 
2 
Total 53.5. 30 3 
1 
2 
1 
2 
| 
TaBLeE VI.—Life of spring brood of moths—Cage IT. 
Moths emerged and put into Moths died. Eggs laid (at night). 
cage. Average 
aie lifeof | - 
moths. 
Date. Number. Date. Number. Date. Number. 
| 
oN] Ou eae Gee AS Mlay ot ce eae 2 May 4502622 5 
April 28. 5.12) 3 AW Mray eae seen ee a 1 May 8: ons. 22ee 16 
AMD TIO Fo eee: Oh My D Eee ete ace 1 May stil 8 sae cee 45 
Mayen) -et Seer 2h elev Grae sae eee 3 
IMayi2e2ceecsa ess ODI Miaivaties see cue ene 1 
May, Bie ~ sete octet 1D Maas? a2 seas 2 
ecg oe EE | para eceec eal any) nog 
INOUE) Ee eeBaae AQ) | Miaiyal ene eenee 3 
Mayalseyate sae 2 
Ma yells Saunas 4 
Maiyalitas oon arises 3 
MevalGias See cse oe 2 
IMiayelifene sone 2 
Hseaped'. 2 522.5222 5 
| 
| 
THE FIRST GENERATION. 
FIRST-BROOD EGGS. 
Period of oviposition.—Eggs 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. 
