EXPERIMENT STATION BULLETINS. 189 



In order to get an estimate as to the times when the larvae entered the apples 

 in greatest numbers, examinations of the fruit were made at short intervals. 

 Fifty apples were picked at random from an unsprayed tree at each examination, 

 and these were cut open to make sure whether they contained larvae or not. The 

 variation is accounted for when we consider that the apples were picked from 

 various parts of the tree. 



Following is the result of these counts for 1904: — 



XTMr.KR OF I-AUVAK ENTERING APPLES, 1904. 



Number .Tu.st 



Date. found. enteiing- 



June 10 



20 



22 2 



24 6 



27 7 



30 8 



July 2 12 



5 8 



6 17 



8 14 



9 18 



11 17 



13 21 



15 20 



18 21 



20 18 4 



25 12 2 



27 21 4 



29 22 8 



30 13 5 



Aug. 1 13 3 



3 21 3 



10 11 7 



• 11 18 5 



13 21 6 



15 22 10 



16 19 9 



20 20 15 



26 30 20 



29 30 14 



31 27 7 



Sept. 3 30 10 



6 37 8 



8 37 9 



10 19 6 



12 26 3 



14 23 1 



16 24 1 



17 26 1 



19 27 



21 28 4 



22 35 1 



28 33 4 



30 29 



Oct. 1 27 2 



6 31 



18 24 . 1 



21 36 



On September 10 a change was made in the tree from which the counts were 

 made, it being impossible to obtain more apples from the original tree used (a 

 Shiawassee). The rest of the counts were made from a russet in the orchard 

 where the bands were placed. 



