REPORT OF THE STATE ENTOMOLOGIST I916 19 



which are made by partly-grown or full-grown caterpillars leaving 

 one apple or entering another either at the side or blossom end. 

 These late injuries after picking time, unless the examination is 

 greatly delayed, usually give some indication of recent work, such 

 as partly dried, hanging borings and possibly the presence of active 

 caterpillars. In any event, if material injury occurred after barreling, 

 living caterpillars in some numbers should be found in the barrel 

 or near the fruit if it is not in a tight container. The absence of 

 such living larvae would be almost indubitable evidence of the 

 mischief having been done before the fruit was placed in storage 

 and probably before it was picked. 



The distinction between, first brood and second brood codling 

 moth injury is not particularly vital, so far as the apple packing law 

 is concerned, except that very little or no such injury would occur 

 on late fall and winter fruit after picking and not much in all prob- 

 ability on the summer and early fall apples. Most of the partly 

 grown larvae found in winter apples at picking time belong to the 

 second brood, while those fully developed may have come from 

 late-deposited eggs of the first brood, much depending upon the 

 season. A scrutiny of the injury at this time, even if no larvae are 

 present, is of some service in enabling one to decide whether it is 

 moderately recent and therefore the work of the second brood or 

 older and presumably caused by first brood larvae. 



EXPERIMENTAL WORK 



Kendall Orchard 



The experiments of last year were continued in the greening 

 orchard of Mr H. E. Wellman of Kendall. It is located north of 

 the house and is bounded on the west by a highway, a rather well- 

 marked drive on the south and extends north to another highway. 

 Eleven trees lie between the experimental plots and the western 

 highway. 



Plots 1, 2 and 3 were located as last year, plot 1 being three trees 

 north from the southern margin, plot 2 nine trees north, and plot 3 

 fifteen trees north. The check trees of last year were 22 trees north, 

 while this year the trees X and Y were 20 and 21 trees north respec- 

 tively, the change being necessitated by irregularities in fruiting. 

 Two rows on each side of the experimental trees were used as bar- 

 riers. The orchard is about 40 years old, the trees being set 33 by 33 

 feet and large enough so that the branches are moderately close but 

 not so near as to prevent satisfactory spraying. 



