CODLING MOTH IN CENTRAL APPALACHIAN REGION. 



33 



furnished a supply of wintering larvae to be used for emergence records 

 of the spring brood of moths in 1912. 



Predaceous and parasitic enemies of the codling moth were possibly 

 more abundant here than in any other orchard in which banding 

 records were made during the investigation. The second-brood 

 larvae were very ex- 

 tensively parasitized 

 by hairworms (Mer- 

 mis sp.). Of the lar- 

 vae of this brood, 71 

 out of 159, or nearly 

 50 per cent, died from 

 this cause. 



The first-brood 

 moths began to ap- 

 pear in the jars on 

 July 5, when five were 

 found. The maxi- 

 mum was reached on 

 July 8, and from that 

 time the numbers 

 gradually diminished 

 until September 13, 

 when the last two of 



, Fig. 18.— Diagram to illustrate emergence of spring-brood moths of the 



the Season appeared. codling moth at Fishersville, Va., in 1913. 



INVESTIGATIONS IN 1912. 



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 sAPRtL. MAY UUNE 



SPRING-BROOD MOTHS. 



On account of the high mortality, due to parasites and other causes, 

 only about 50 wintering larvae were alive to pupate in the spring. 

 Pupation took place from April 22 to 28. 



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

 French Creek, W. Va., in 1912. (See fig. 19.) 



Date of obser- 

 vation. 



Number 

 of moths 

 emerging. 



Date of obser- 

 vation. 



Number 

 of moths 

 emerging. 



May 13 



1 

 2 

 3 



8 



May 25 



16 

 4 

 2 



14 



29 



16 



Junel 





Total 





36 



Table XXV shows that the first moths of this brood issued on May 

 13, the last on June 1, and the greatest number on May 25. The 

 last petals were dropping from apple on May 10, so that the first moth 



