THE LESSER APPLE WORM. 



47 



Table I gives the relative number of the two species as obtained 

 from wormy apples picked from the trees, each picking including 

 some windfalls, which would tend to slightly increase the percentage 

 of Enarmonia larvae. 



Table I. — Relative seasonal increase of Enarmonia prunivora over codling moth larvse 

 in windfalls and in fruit picked from trees in orchard of D. S. Ballou, Siloam Springs, 

 Ark., 1908. 



Percent- 

 age Enar- 



Quantity of apples. lpfited mnnift £ iondUnp and Epi . 



notia 

 larvae.o 



1 gallon.. 

 £ gallon . . 



2 gallons.. 

 2\ gallons. 



3 gallons.. 



3 gallons.. 



4 gallons . . 





Number 







specimens 



Number 



Date col- 



of Enar- 



specimens 



lected. 



monia 



ofcodling 





and Epi- 



moth. 





notia.o 





May 14 



4 



6 



May 26 



11 



25 



June 8 



21 



61 



June 30 



15 



22 



July 16 



84 



24 



Aug. 4 



120 



53 



Aug. 22 



62 



17 



40 



30.5 

 25.6 

 40.5 



77.8 

 59.3 



78.5 



a Enarmonia and Epinotia larvse were not separated in Tables I and II, as it was not possible to readily 

 distinguish between them. However, there were very few specimens of Epinotia till fate in the season, 

 i. e., after the middle of August, and then in small numbers as compared with the number of Enarmonia. 



Table II, prepared by Mr. E. L. Jenne, is from wormy fruit picked 

 from trees at intervals stated, no windfalls being included. 



Table II. — Relative seasonal increase of Enarmonia prunivora over the codling moth 

 in fruit picked from trees, Flickenger orchard, Siloam Springs, Ark., 1908. 



Number of apples. 



139 



56. 

 58. 

 64. 

 156 

 129 

 107 





Number 







specimens 



Number 



Date col- 



Enar- 



specimens 



lected. 



monia 



ofcodling 





and Epi- 



moth. 





notia. a 





May 26-7 



6 



80 



June 20 



10 



28 



June 30 



17 



22 



July 16 



17 



27 



July 31 



44 



77 



Aug. 16 



95 



54 



Sept. 1 



95 



39 



Percent- 

 age Enar- 

 monia 

 and Epi- 

 notia 

 larvse.o 



7.0 



26.3 

 43.6 

 38.6 

 36.4 

 63.8 

 70.9 



a See footnote to Table I. 



SEASONAL HISTORY AND HABITS. 



Information regarding the overwintering or hibernating habits of 

 the larva of this insect is not yet complete. Overwintering larvae 

 have been found in cracks and crevices of the bark of trees, and 

 also in fruit and barrels which had been stored over winter. Search- 

 ing through the rubbish around the apple bin of a vinegar factory 

 on March 24, Mr. E. L. Jenne and the writer found larvse of Enarmo- 

 nia at the rate of 4 to 135 larvae and pupae of the codling moth. A 

 few days later 234 larvae and pupae of the codling moth located from 

 3 to 8 feet above ground were collected from the framework of the same 



