33 
Places of entrance of the second generation. 
UNSPRAYED TREES. 
Stem. 
Side. 
Calyx. 
Total. 
Per cent ' 
calyx. 
4 
66 
57 
127 
44.4 
5 
74 
31 
110 
28.1 
12 
104 
76 
192 
39.5 
4 
97 
41 
142 
28. H 
1 
20 
12 
33 
36.3 
1 
58 
14 
73 
19.1 
27 
419 
231 
077 
.,2«.l 1 
SPRAYED TREES. 
1 
56 
28 
85 
32 
11 
204 
21 
236 
8.8 

37 
36 
73 
49.3 

41 
14 
55 
2.5.4 

32 
9 
41 
21.9 

50 
34 
84 
40.4 

19 
18 
37 
48.7 

50 
21 
71 
29.5 
1 
11 
12 
24 
50 

32 
16 
48 
33.5 

22 
7 
29 
24.1 

9 
9 
18 
50 
13 
563 
^ 
801 
a 28 
« Average. 
The tables of the places of entrance of the first generation on 
sprayed trees show some interesting facts, and it is to be deplored 
that the records are not more extensive. 
No definite data was secured in regard ^ to what percentage of the 
larvae enter the sides where fruits are touching. In badly infested 
orchards it is almost impossible to find such fruits into which a larva 
has not entered. It would be safe to estimate that fully 50 per cent, 
if not more, of the larvae entering at the sides enter where the fruits 
touch. 
Immediately after entering the cal} x cavity the larva takes its 
first meal. We have a lack of data as to exactly what is eaten, l)ut 
most probably the larva acts as it does wlieiitthe side is entered. After 
spinning the web over the hole the larva, when it enters the side, eat^ 
out a cavity under the skin and throws out but little castings. This 
mine is eaten outward from the point of entrance, and in from :> to 5 
days the larva begins its tunnel toward the center of the fruit, reach- 
ing that point when about one-quarter grown and about a week old. 
While at the surface, or while tunneling toward the center of tlie 
apple, the larva pushes its excrement and frass through the entrance 
hole. Later the entrance hole, especially at tlu^ calyx, is enlarged, 
and a considerable amount of frass is throw n out, which characterizes 
the infested fruit (PI. Y, fig. 3). A\'hen a considerable cavity has been 
made in the interior of the apple the excrement is bound togetJier with 
silk. Upon reaching the centi'al portion of the fruit the lar\a eats 
(5r)l.t— No. 41 vi3 3 
