CODLIISTG MOTH IN" CENTEAL APPALACHIAlSr EEGION. 



11 



Fkst-brood laiVEe 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 larvse must have been entering fruit June 25-30, and 

 were learing 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-BEOOD 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 wintermg larvae at 

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

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

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



Tablk 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 

 emergiriK. 



Pate of obser- 

 vation. 



Nmiibor 

 of iiiol hs 

 emcrgiiiK'. 



Mftv R, 



3 

 11 

 18 

 28 

 20 

 40 



May 30 



34 

 15 

 5 



' 10 



Juno 3 . 



14 



7 



18 



Total 



22 



ISO 



20 





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

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

 at l(!ast not been a])])cani)g in tlio field in numlxirs up to that time. 

 Maximum cmcTgencc did not occur until May 20, although moths 

 were ap])earing in some numbers during all of tho period from May 

 10 to rJunc- 3. None cnu'i-gctl in tlio rcaj-ing cages after Jiuk^ 7, 

 ultliougii, had more insects b(!en under observation, an occasional 

 adult would ])robably have appeared later. 



