INSECTS INJURIOUS TO THE APPLE AND PEAR 



613 



If there are but a few nests the caterpillars may be destroyed 

 in them by spraying the nest on a cloudy or cool day with pure 

 kerosene. Apply the spray with an extension rod and fine nozzle 

 so that the nest will be thoroughly soaked, without spraying the 

 surrounding foliage. Or the caterpillars may be destroyed by burn- 

 ing the nests with a torch while they are in them, or while young 

 they may be swabbed out with a broom or brush and crushed. 



The Yellow-necked Apple Caterpillar * 



During late summer the tips of apple limbs are often found 

 defoliated for a foot or 

 two and if examined a 

 mass of caterpillars will be 

 found huddled together as 

 if confessedly guilty. Usual- 

 ly these will prove to be- 

 long to this or the following 

 species. The full-grown 

 yellow-necked apple cater- 

 pillar is about 2 inches 

 long, with a jet black head 

 and the next segment, 

 often called the neck, a 

 bright orange yellow, from 

 which the insect is named. 

 Down the middle of the 

 back runs a black stripe, 

 and on either side of the 

 body are three stripes of 

 black alternating with four 

 of yellow and the body FlG ' 4 

 thinly clothed 

 soft 



- 



s 

 long, 



white 



with 

 hairs. 



. . 



pillars assembled on apple twig in 

 natural position from life, much 

 reduced. 



* Datana mlnistra Drury. Family Xotodontidce. See A. S. Packard, 

 Memoirs National Academy of Sciences. V>1. VII. p. 106; E. D. Sanderson, 

 Bulletin 139, X. H. Agr. Exp. Sta., p. 213. 



