INDEX^ 



Acuminata, 11. 

 Alebra, 128. 



albostriella agresta, 128. 

 bicincta, 128. 

 fumida, 128. 

 pallidula, 128. 

 Ancylis comptana, 457. 

 Ants, attendant on Corn Root-aphis, 



449. 

 Anuraphis maidi-radicis, 457. 

 Aphis torbesi, 450. 



maidiradicis, 449, 456, 457. 

 Apple [production], 50. 



foliage test with oil emulsions, 121, 

 122, 123. 

 Army-worm, injury to Corn, 455, 456. 

 Ash, 10, 11, 12, 13, 14, 15, 16, 19, 20, 

 21, 22, 24, 25, 26, 27, 28, 29, 30, 31, 

 35, 43, 44, 45, 46, 47, 48, 49, 51, 52, 

 53, 54, 55, 74, 76, 78, SO, 81, 90, 91, 

 94, 95, 97. 

 Black, 3. 

 Blue, 3. 

 Green, 3, 31. 

 Red, 3. 



White, 3, 4, 31. 

 Ashes, 17. 

 Aspen, Big-toothed, 11, 49, 51, 52, 54. 



B 



Basswood, 4, 10, 11, 16, 30, 31, 35, 43, 



46, 48, 49, 50, 51, 52, 54, 55, 78, 81, 



90, 91. 

 Beech, 4, 10, 11, 12, 13, 17, 25, 31, 32, 



43, 44, 45, 46, 47, 4S, 49, 54, 78, 82, 



90. 

 Water, 4. 



Bill-bugs, injury to Corn, 455. 

 Birch, River, 3, 10, 16, 19, 22, 24, 25, 



27, 28, 31, 49. 

 Blackberry, infested by Strawberry 



Leaf-roller, 450. 

 Box-elder, 3, 26. 31. 

 Broad-leaves, 2, 4, 12, 40. 

 Buckeye, 11, 54. 



Ohio, 4. 



Sweet, 4. 

 Bunch Grass, 36. 

 Butternut, 3, 4, 11, 43, 54. 



c 



Cactus, 5. 

 Carpinus, 47. 

 Calophya, 127. 



flavida, 127. 



pallidula, 127. 

 Carya cordiformis, 37. 

 Catalpa, 3, 10, 12, 16. 17, 19, 39. 

 Cedar, 46. 



Red, 43. 

 Cedusa, 127. 



fedusa, 127. 



kedusa, 127. 

 Cherry, 10, 11, 16. 23, 35, 49, 51, 52, 53, 

 54, 55, 94. 



Black, 4, 31,. 56. 



foliage test with oil emulsions, 121, 

 122. 

 Chestnut, 48. 

 Chinch-bug, 449, 455. 

 Chrysomelidae, 454. 

 Codling moth, appearance, life history 

 and habits, 315-316. 



control measures, 316-317. 



• See pages 271 to 309 for index to insect types in the collections of the State 

 Natural History Survey and the University of Illinois. See also in this connection 

 pages 269 and 270. 



