131 



Rotation of crops — Continued. 



for Wheat Bulb-worm, xiii, 15. 

 for Wheat Straw-worm, xiii, 32, 



33, 34, 37. 

 for White-grubs, xviii, 128; xx, 



34; xxiii, 12; xxiv, 165. 

 for wireworms, xviii, 50; xxiii, 12. 

 rotundifolia, Malva, xxi, 83. 

 Rove-beetles, general description and 



food habits of, xxiii, 180. 

 rubi, Metallus, xiv, 87. 



Selandria, xiv, 91. 

 rubiginosa, Lachnosterna, xviii, 115. 

 Rubus canadensis as food plant of Apple 

 Tischeria, xv, 46. 

 occidentalis, xv, 46. 

 villosus, xv, 46. 

 Rudbeckia, pupae of Southern Corn 

 Root-worm among roots of. xviii, 148. 

 rufans, Bacillus, xviii, 150, 151. 

 ruficollis, Cartodere, xxiii, 182. 

 rugiceps, Ligyrus, xxiii, 99. 

 rugosa, Lachnosterna, xvii, 35, 36, 37, 

 38, 42, 45, 46, 47, 50; xviii, 54. Ill, 

 112, 113, 116. 119, 121, 140, 143; xxi, 

 164; xxiv, 137, 139. 140, 141, 143, 144, 

 145. 149, 150, 151, 152. 

 rugulosus, Scolytus, xvii, 1 ; xxi, 40. 

 Rumex as food plant of Colaspis brun- 

 nea, xxii, 148. 

 of Common Striped Cutworm, 

 xxiii, 34. 

 crispus infested by Corn Root-aphis, 

 xvii. 67; xviii, 61, 74. 

 ruricollellus, Crambus, xxiii, 153, 154. 

 Rushes as food or breeding plants of 

 bill-bugs, xxii, 2, 10, 11, 18. 

 infested by Stalk-maggot, xxiii, 165. 

 Russian Thistle, eggs of Western Green 

 Stink-bug laid on, xxi, 99; xxiii, 117. 

 rusticus, Anisodactylus, xxiii, 177. 

 Rusty-Brown Tortrix, xxiii, 176, 226. 

 Rutabaga as food plant of Zebra-cater- 

 pillar, xxi, 153. 

 Rye as food plant of Army-worm, xxiii, 

 49. 

 of Cotton Cutworm, xxiii, 80. 

 of Dusky Leaf-bug, xxiii, 199. 

 bred on and injured by Chinch-bug, 



xv. 93; xviii, VIII, IX. 

 Clover or Timothy sown with, as pro- 

 tection against Chinch-bug injury, 

 xv, 102. 

 destroyed or injured by Grass-worm, 



xiv, 62; xxiii, 82. 

 Hessian Fly destructive to, in Europe, 



xvi, 54. 

 hibernation of Wheat Bulb-worm in, 



xv, 38. 

 infested by Agallia novella, xxi, 69. 

 by Empoasca mali, xxi, 78. 



Rye infested — Continued. 



by Euschistus variolarius, xxiii, 196. 

 by Gnathodus abdominalis and G. 



impictus, xxi, 76. 

 by Isosoma hordei, xiv, 36. 

 injured by corn bill-bugs, xvi, 58, 59, 

 63. 

 by Crambus vulgivagellus, xxiii, 42. 

 by Wheat Bulb-worm, xiii, 14, 20, 



23; xiv, 6. 

 bv Wheat-head Army-worm, xxiii, 

 84. 

 subject to injury by wireworms, xviii, 



30. 

 Wild, English Grain-louse on, xxiii, 



207. 

 Winter, sowed with Spring Wheat as 

 protection against chinch-bug in- 

 jury, xv, 99. 



S 



saccharalis, Diatrsa, Misc. Ess., 87; 



xxiii. 7, 10. 91, 233. 

 saccharatum. Sorghum, xiii, 40: xxiii, 92. 

 saccharinum. Acer, xxiv, 100, 103. 

 Saddle-back Caterpillar, Misc. Ess., 62; 



xxiii, 173-174, 230. 

 Sage infested by Common Red Spider, 



xxi, 59. 

 Sagittaria as food plant of Striped Blis- 

 ter-beetle, xxi, 140. 

 Salsify as food plant of Cotton Cut- 

 worm, xxi, 148; xxiii, 80. 

 of Red-banded Leaf-roller, xxiii, 



175. 

 of Sulphur Leaf-roller, xxiii, 

 174. 

 Salt applied to hills of Corn for Corn 

 Root-aphis, xviii, 76, 77. 

 for wireworms, xviii, 49, 50. 

 -marsh Caterpillar, xxi, 146, 156-158; 

 xxiii, 72, 230. 

 Moth, Misc. Ess., 59. 

 solutions for White-grubs, xvii, 43. 

 to prevent injurv by Colaspis brunnea, 

 xiii, 171. 

 Saltweed as food plant of Beet Army- 

 worm, xxi, 150. 

 Sand-bur as food plant of Pale-striped 



Flea-beetle, xxiii, 108. 

 Sanderson, E. D., xxiii, 90. 91 ; xxiv, 



44. 48, 49. 

 San Jose Scale, xxii. 99, 103. 



agency of birds in distribution of, 



xx, 3. 

 and its allies, xxii, 114-117. 



distinctive appearance of, 



xxii, 115, 116. 

 relative importance of, xxii, 

 114, 115. 



