CODLINCi MOTH IN CENTRAL APPALACHIAN RECION. 



11 



First-brood larvae were taken under the bands June 5, and by August 

 1 probably most of them had left the fruit. First-brood moths 

 appeared in the rearing cages on June 14, and in numbers June 23. 

 Second-brood larvae must have been entering fruit June 25-30, and 

 were leaving by the last of July to the first of August. 



INVESTIGATIONS AT GREENWOOD, VA. 



DESCRIPTION OF LOCALITY. 



Greenwood is situated about 18 miles west of Charlottesville, in 

 a section of the Blue Ridge Mountains where commercial apple 

 growing has been well established for years. In a mountain orchard 

 section, such as this, there is considerable variation in the elevation 

 of orchard sites. The orchard in which band-record experiments 

 were conducted was at an altitude of about 900 feet above sea 

 level. The work in this section for the season of 1912 is given in part 

 only, the moth emergence of that summer being considered of suffi- 

 cient importance to find a place in this report. 



INVESTIGATIONS IN 1912. 



SPRING-BROOD MOTHS. 



Table VI contains the emergence records of 180 moths as they 

 occurred in the rearing cages at Greenwood in 1912. The first visit 

 of the season to Greenwood was made on May 8, and the table 

 shows that three moths were found in the jar of wintering larvse at 

 that time; while these may have emerged two or three days pre- 

 viously, from the number appearing two days later (May 10) it can 

 be assumed that moth emergence was just beginning on May 8. 



Table VI. — Emergence of spring-brood moths of the codling moth at 

 Greenwood, Va., in 1912. (See fig. 5.) 



Date of obser- 

 vation. 



Number 

 of moths 

 emerging. 



Date of obser- 

 vation. 



Number 

 of moths 

 emerging. 



May 8 



3 



11 

 18 

 28 

 20 

 46 



May 30 



34 



15 



5 



10... 





14 





18 



Total 



22 



180 



26 .. 





Some time was spent in the orchard in an unsuccessful search for 

 eggs and young larvse, and their absence indicates that moths had 

 at least not been appearing in the field in numbers up to that time. 

 Maximum emergence did not occur until May 26, although moths 

 were appearing in some numbers during all of the period from May 

 10 to June 3. None emerged in the rearing cages after June 7, 

 although, had more insects been under observation, an occasional 

 adult would probably have appeared later. 



