THE CODLING MOTH IN MICHIGAN. 



BAND-RECORD EXPERIMENTS IN 1909. 



In the band-record experiments of 1909, 30 apple trees were used, 

 of which 15 trees were located in the yard of the laboratory and 16 

 trees in two near-by orchards. Fall and winter apples, such as Rhode 

 Island Greening, Baldwin, Golden Russet, Northern Spy, Wealthy, 

 etc., were used. With these late varieties of apple a thorough test 

 was made of the relative abundance of first and second brood larvae. 

 The results of these experiments are recorded in Tables III and IV 

 and by curves in figure 3. 



Fig. 3. — Curves shoving maturity of larvse of first and second broods; band-record curve, of 1909, at 



Douglas, Mich. (Original.) 



Table III.— Band-record experiments in 1909 at Douglas, Mich., by W. Postiff; com- 

 pleted in 1910 by . I. (',. I laminar. 



