70 X. H. AGR. EXPERIMENT STATION [Bulletin 143 



trausfonn. and none have pupated after August 13. In 1907, 

 on August 8, we secured 9 pupa^ and 24 larvae, three of which 

 pupated before August 13. The moths emerged August 12 to 

 23, 1907. No larva? were observed to transform after August 1, 

 in 1908. From these and other observations it seems probable 

 that one-third of the larvae which form cocoons during the last 

 week of July or first week in August transform to pupa?, but 

 these would be not over 5 per cent, of the total larvae of the first 

 brood. These few moths la}- their eggs probably in much the 

 same manner as in early summer, although we have not been 

 able to observe them, and doubtless more of the eggs are laid on 



Fig. 10.— The little worms of the second brood d ed upon or just under 



the surface. 



the apples. The work of tht- young eatcri)illars of the second 

 brood is noticeable after the middle of August. The feeding 

 habits of these little worms of the second brood are quite differ- 

 ent from the main summer brood, as they merely feed upon or 

 just under the surface, often around or in the calyx, or where a 

 leaf or anotlier apple comes in contact with the skin, and rarely 

 bore into the apple, as does the first brood. The ditference in tlie 

 food habits of this second brood has been observed by many grow- 

 ers and has led some to the belief that the work is that of a dif- 

 ferent insect. Althougli the Lesser Ai)ple Worm {Enarmonla 

 prunivora) occurs here commonly, it is by no means numerous 

 enough to form any large part of the work attributed to the 

 second l)rood of the codling moth. Although but less than five 

 per cent., and probably only one or two per cent., of the larvae 

 transform to the second generation of moths, yet we find that 



