l8 NEW YORK STATE MUSEUM 



Some old, partly rotten apples were to be seen under trees here and 

 there in the orchard, but codling moth larvae were not excessively- 

 abundant under the bark of such trees. One pupa was found on a 

 tree at the base of which was a pile of old apples. 



The second spray was applied on the afternoon of June 8th to 

 plots 2 and 3, the treatment in this instance being restricted to the 

 6 experimental trees of each plot, there being no attempt to include 

 the barrier trees in this application. The work was started at 

 4.55 p.m., the afternoon being clear, mild and with a light breeze. 

 The spraying was completed at 5.10 and approximately 7 gallons 

 were used to each tree. Engine troubles delayed the work some- 

 what. Two codling moth larvae just ready to pupate were found 

 in the orchard. 



Leaf rollers were somewhat common, a few pupae and full-grown 

 larvae being seen. Young tussock moth larvae were also hatching 

 in small numbers, though the latter were not abundant enough 

 to be important factors. 



Numerous eggs and recently hatched larvae were found July 13 th 

 on certain Baldwin apple trees. Some of the eggs had just been 

 laid and were white, others were in the red stage, a few in the black 

 stage and a number of egg shells were also seen. There were 2 or 3 

 and, in a few cases, 4 eggs or egg shells upon individual apples, though 

 this was by no means an average. Side injury was rather frequent 

 on trees where eggs or egg shells were abundant, the point of entrance 

 being usually half an inch or more from the egg. The affected tissues 

 extended only to about one-twelfth of an inch in depth and were 

 injured by the small larvae penetrating through the skin and then 

 running a circular or nearly circular gallery in the outer layers of the 

 fruit, the radius of this gallery being approximately one-sixteenth 

 of an inch. The young larvae appear to remain in these holes rarely 

 more than several days and then migrate to the blossom end of the 

 fruit. This was evidenced by the fact that on the 8th, as observed 

 by Mr Strickland, eggs were found in numbers on the apples and only 

 a little side injury, while on the 13th there was considerable injury 

 and most of the larvae had deserted the initial point of entrance 

 and were frequently found in the blossom end. One larva was 

 observed wandering on the surface of an apple, another on the tip 

 of the calyx and a number were found in the calyx cavity, several 

 of the latter being dead. Apples with the stamens partly eaten off 

 or fully devoured were not uncommon. This feeding was speedily 

 followed and sometimes preceded by the young larvae excavating 

 a circular gallery in the succulent tissues at the base of the calyx 



