302 FRUIT INSECTS 



four weeks the bugs leave the peach, going to wild carrot, wild 

 aster and other weeds. They remain on apple stock for a 

 much longer period. 



The control of the tarnished plant-bug on nursery stock is 

 still an unsolved problem. The fact that the injury is caused 

 by the winged adults, and not by the nymphs, makes it imprac- 

 ticable to kill them with a contact spray. They are very shy 

 and active insects that take flight at the slightest alarm. Dur- 

 ing the daytime they leave the trees several feet in advance of 

 the spray. The terminal shoots of the nursery trees might 

 be protected by inclosing them in paper bags. 



References 



U. S. Bur. Ent. Bull. 97, Pt. VI. 1912. 



Back and Price, Jour. Ec. Ent. V, pp. ;i29-334. 1912. 



Haseman, Jour. Ec. Ent. VI, pp. 237-240. 1913. 



Other Peach Insects 



Green fruit-worms : apple, p. 39. 



Bud-moth : apple, p. 42. 



Oblique-banded leaf-roller : apple, p. 65. 



Leaf-crumpler : apple, p. 68. 



Apple-tree tent-caterpillar: apple, p. 112. 



Forest tent-caterpillar: apple, p. 119. 



Climbing cutworms : apple, p. 138. 



San Jose scale : apple, p. 162. 



Scurfy scale : apple, p. 176. 



Flat-headed apple-tree borer : apple^ p. 194. 



TwiG-PRUNER : apple, p. 200. 



Tw^iG-GiRDLER : apple, p. 202. 



Flea-beetles : apple, p. 203. 



Clover-mite : apple, p. 206. 



Eye-spotted apple-twig borer : apple, p. 209. 



New York weevil : apple, p. 210. 



Pear thrips : pear, p. 223. 



Howard scale : pear, p. 234. 



European pear scale : pear, p. 234. 



Plum curculio : plurUy p. 243. 



