APPLE INSECTS.* 



W. J. SCHOENE and B. B. FULTON. 



The apple is subject to attack by a great many insects. This 

 circular has been prepared with the view of 

 affording practical aid to the apple-grower in 

 his contest with them. The more important 

 species only are considered, which should be 

 recognizable by the accompanying illustrations. 

 There is also included a brief outline of the 

 principal sprayings for the apple. However, it 

 should be understood that diseases and insects 

 vary greatly in destructiveness from one year 

 to another, according to seasonal conditions. 

 This spray- 

 ing schedule 

 should there- iffli 



Fig. 45. — -Cases of 

 Cigar C a se - 



BEARER (a) AND 



Pistol Case- 

 bearer (b). 



"^P 



:m ^v 



^■ili 



fore be used 

 with discre- 

 tion. If a 

 disease or in- 

 sect is very destructive the grower FlG . 46 _ MoTH 0F Pistol Casebearer. 

 should familiarize himself with 

 the special bulletins on the subject. 



CASEBEARERS. 

 PISTOL CASEBEARER, CIGAR CASEBEARER, 



Coleophora malivorella Riley. C. fletcherella Fern. 



The pistol casebearer and the cigar casebearer (Fig. 45) are fre- 

 quently troublesome in apple 

 orchards. The life histories 

 are very similar. The young 

 caterpillars of the pistol case- 

 bearer live over winter in 

 the little pistol-shaped cases 

 of silk which are attached by 

 one end to the twigs, usually 

 near and sometimes on the 

 buds. (Plate XXV, fig. 1.) 

 These cases measure about 

 one-eighth of an inch in length and resemble the bark in color. Early 



Tig. 47. — Adult Bud Moth. 



Reprint of Circular No. 25, April -25, 1913. 



[372] 



