278 



PESTS OF ORCHARD AND SMALL FRUITS 



reach the terminal leaves, for the caterpillars are apt to feed in such 

 locations. 



The Palmer-worm {Dichomeris ligulellus Hbn. ( Ypsolophus pometellus 



Harr.)) 



At occasional periods, separated by long intervals, a small striped 

 caterpillar becomes numerous on apple and other trees, severely 



injuring the foliage and 

 often eating irregular cavi- 

 ties in the surface of the 

 young fruit. The full- 

 grown worm is about a 

 half inch long, has three 

 narrow dark stripes down 

 its back, and usually spins 

 a few strands of silk over 

 itself, sometimes thus 

 The adult is a tiny moth. 



Fig. 400. — Adult of the Palmer- worm, 

 larged and natural size. Original. 



bending over the edge of a 



The best remedy is a 

 prompt application of Paris 

 green or arsenate of lead. 



The Apple-leaf Bucculatrix 



{Bucculatrix pomifoliella 

 Clem.) 



Greenish yellow caterpil- 

 lars, half an inch long when 

 full grown, feed first in mines 

 within the leaf tissues of 

 apples, or related trees, and 

 later on the surface, skele- 

 tonizing the leaf. The seg- 

 ments of the caterpillar's body 

 are prominent and rounded. 



leaf. 



Fig. 401. — Work of the Apple-leaf Buccu- 

 latrix. Original. 



