56 



STATE POMOLOGICAL SOCIETY. 



WJum are the eggs laid? On this point I cannot be so definite as 

 I would like. On July 8tb, I took twenty-three apples at ramdom 

 from a sweet tree, cut them open and found but two worms and one 

 empty worm hole. Jul}- lOtli, I tried twent\- specimens from the 

 same tree with similar result, but on other parts of the farm found 

 the worms mo?'e plenty, some of them had opened holes in the side 

 of the apple but still remained within, and the largest 1 found that 

 day was half an inch long. So far as this goes it indicates that the 

 earliest eggs — and what I have observed of the date when the moths 

 begin to fly in the summer leads to the same conclusion — are not laid 

 before the last of June ; but this point needs further study. How 

 late in the season the moths continue to lay eggs I can only judge 

 from the fact that very small worms continued to be found up to the 

 last examination, September 3d. August 3d, out of twenty-nine 

 worms found, twelve were less than a quarter of an inch long and 

 five of them less than three-sixteenths of an inch, two being found 

 in the eye of the apple, the pulp of which they had not yet pene- 

 trated. August 7th, out of twenty-eight worms twelve were less 

 than a quarter of an inch long, and on the third of September four 

 out of fourteen were equally- small. 



On ichat part of the apple is the egg laid? In the great majority 

 of cases in the calyx or the remains of the blossom. This is proved 

 b}- the fact that sixty-eight per cent of the wormy apples had been 

 entered from the calyx exclusively and a further percentage of 

 twenty-three and one-half had been entered from both the calyx 

 and the side, while but eight and one-half per cent had been entered 

 exclusively from the side. It appears that as the season advances 

 the proportion of newly hatched worms entering from the side 

 increases, but five per cent of the apples being in that class July 22, 

 while in August the percentage of such apples was, in different lots, 

 from eleven to twenty-two per cent. 



The worm appears generall}- to complete its larval growth in the 

 apple where its existence begins, but seven instances being observed 

 where one had changed from one apple to another, and all of these 

 ma}' have been instances where the two apples touched each other 

 and the worm passed from one to the other without exposure or con- 

 ciousness of change. 



Hoiu many worms enter a single apple? Out of 201 specimens, 

 9 (= 41 per cent) had been penetrated b}' three worms each, 47 

 (= 23^ per cent) by two worms each, and 148 (= 74 per cent) b}' 



