94 INSECTS INFESTING THE APPLE TREE. 



CHAPTER XLII. 



The Bud Worm. 



(Penthina oculana. — Harris.) 



Synonym. — Spilonota oculana. 



Order, Lepidoptera ; Family, ToRTRiriDiE. 



[Fastening together and devouring the leaves of the open- 

 ing l)uds of apple trees; a small, brownish caterpillar.] 



Although of small size, these worms sometimes occasion a 

 great deal of damage by devouring the Inids. They usually 

 attain their full growth by the middle of Summer, when they 

 prepare to assume the pupa form l)y lining their retreat with 

 a layer of silken threads. 



Fig. 69. — Bud-worm and Motli : li)wer figure, Fip:. (59. 

 the worm — color, pale brownish ; upper figure, 

 the moth — colors, ash-gray and whitish. 



These worms (Fig. 69) or caterpillars are of a 

 pale or dull })rownish color, with th<' lu'ad and 

 top of the first segment shining ])rown ; and there is a dark brown 

 spot on the top of the eighth segment, which ap])cars to be 

 under the skin. The moths (Fig. 69), which ajipear in June 

 or July, have the head and thorax dark ash color; tlic fore- 

 wings are of the same color at each end, and grayish-wliite in 

 the middle, mottled with dark gray ; there are two little ^ye- 

 like spots on each one, near the tip, consisting of four little 

 black marks placed close together in a row ; the second eye- 

 spot is near the inner hind angle, and consists of three black 

 dots arranged in the form of a triangle, sometimes with a 

 black dot in the middle; the hind-wings are dusky brown. 

 The fore-wings expand from six to seven Hues. 



Remedies. — Use No. 65, and cut out infested branches. 

 See No. 27. 



