REPORT OF THE STATE ENTOMOLOGIST I9Q17 2H 
experiences in experimental orchards during the past decade, which 
latter appears to show comparatively little migration from tree to 
tree. 
Codling moth data from various orchards, 1917 (L. F. Strickland) 









PICKED FRUIT DROPPED FRUIT 
ORCHARD ; 
Total | Total | Shal- Au- E Total | Total) Shal- Au- : 
apples |wormy| low Deep gust nd apples |wormy| low Deep | cust End 
W.W. Dutton, Youngs- 
town 
(ixeets ans. ccs... 1 087 249 392 36 4 25 20 16 16 \ 
CRTee/D nse, seoccue- 1 702 324 440 149 3 iff 8 2 10 
8. F. Burton, Ransom- 
ville 
(iree6) aos, 25. 1 054 263 347 67 44 1 51 40 21 COR tees: I 
Wren (sok coon ne 1 623 301 377 73 34 2 30 26 13 28 me 1 
R. E. Heard, Lockport 
COL) Manca ohne 386 117 180 22 IB Soa 8 MAE oe 6 
(iree:2) ee i ule¢ 475 838 196 56 1 120 103 58 89 
G. E. Manning, Ran- 
somville 
(iree'4) See cee 3 426 |1 050 |1 300 234 94 3 72 DOM eel 40h ieee if 
(ree 9) eee 2 049 774 |1 044 188 45 9 60 44 9 33 1 9 











It will be noted on referring to the above tabulation that the 
number of ‘‘ shallow” affected apples invariably exceeds the total 
wormy, except in the case of the dropped fruit. The average number 
of ‘‘ shallows’ to each wormy apple is approximately 13, though 
in the case of tree 2 of the Lockport orchard there are nearly 2. In 
this tabulation every codling moth injury was counted, and since 
from zr to s or even 6 “ shallows’’ may occur upon a single fruit, 
it is easy to understand how the number of such blemishes may 
easily outrun the number of apples affected. It is evident from 
these data that only a comparatively small proportion of the young 
caterpillars entering the side of the fruit penetrate to any depth, 
and on referring to data given elsewhere it will be seen that the 
same is true of unsprayed as well as of sprayed trees. 
Summary and Conclusions 
The experience of the last three years in western New York leads 
us to emphasize the necessity of thorough work, especially with 
the spraying given just after the blossoms fall and widely known 
as the calyx spray or codling moth spray. This is the treatment 
which gives by far the largest returns in preventing wormy apples. 
In our opinion a deficient or poor spraying at this time can not be 
