137 



Solitary Caterpillar, injury by and pro- 

 tection against, xv, 2. 

 wasps, xx, 103. See Odynerus. 

 sonchi, Rhizobius, xiii, 100. 

 Soot to prevent injury by Colaspis brun- 



nea, xiii, 171. 

 sorghiella, Celama, xxiii, 169, 227. 



Nola, xxiii, 169. 

 sorghiellus. Coccus, xiv, 71 ; xviii, 106, 

 107. 

 Dactylopius, xviii, 53, 106-108. 

 Sorghum and Broom-corn, notes on in- 

 sects affecting, xiii, 39-56. 

 literature on insects affecting, xiii, 

 40. 

 and the Northern Corn Root-worm, 



xviii, 156. 

 as food plant of Army-worm, xxiii, 49. 

 of Chinch-bug, xv, 94. 

 of Corn Leaf-louse, xiv, 24 ; xvii, 

 68; xviii, 60, 69; xxiii, 124, 

 206. 

 of Diabrotica tenella. xxiii, 188. 

 Bark-louse, or Sorghum Mealy Bug. 

 description of, xiv, 71 ; xviii, 106, 

 107-108. 

 Cicadula quadrilineatus collected from, 



xiv, 69. 

 damage to, by Thyanta perditor, xxiii, 



117. 

 destroyed by Texan Agricultural Ant, 



xxiii, 159. 

 eaten by Leptoglossus phyllopus, xxiii, 



197. 

 infested by Cicadula 6-notata, xxi, 77. 

 by Corn Flea-beetle, xxi, 118; xxiii. 



110. 

 by Grass Root-louse, xviii, 87, 88. 

 by Larger Corn-Stalk-borer. xxiii, 



92. 

 by Plant-lice, xiii, 40. 

 by Sorghum Mealy Bug, xviii, 107. 

 injured by Empoasca mali, xxi, 78. 

 injuries to, by Sorghum Web-worm, 

 xxiii, 169. 

 by Wheat-head Army-worm, xxiii, 



83. 

 by Yellow Sorghum Plant-louse, 

 xxiii, 210. 

 insects, brief notes on, xiv, 70-71. 

 leaves, eggs of Draeculacephala mol- 



lipes on, xxiii, 205. 

 Mealy Bug, or Bark-louse, xiv, 71 ; 

 xviii, 106-108. See also Corn 

 Mealy Bug. 

 description of, xviii, 107-108. 

 Plant-louse, Yellow, xiii, 53; xxiii, 



210-211. See Chaitophorus flavus. 

 pollen eaten by adult Northern Corn 



Root-worm, xviii, 158. 

 saccharatum, xiii, 40; xxiii, 92. 



Sorghum — Continued. 



subject to injury by Grass-worm, 



xxiii, 82. 

 Web-worm, xxiii, 227. 



food habits and description of, xxiii, 

 169. 

 soror, Diabrotica, xxiii, 188. 

 Sorrel as food plant of Yellow Bear, 

 xxiii, 74. 

 infested by Corn Root-aphis, xvii, 67; 

 xviii, 61. 

 South Dakota Agricultural Experiment 



Station, xxi, 57. 

 Southern Corn-Leaf-beetle, xxiii, 103- 

 104, 231. 

 Corn Root-worm, xviii, 55, 146-154, 

 157; xxiii, 8, 188, 228, 229. 

 character of injury to Corn by, 



xviii, 146-148, 149. 

 description of different stages of, 



xviii, 148, 152-154; xxi, 115. 

 dietary and life history of, xxi, 



125, 126. 

 discussion of, cited, xxiii, 69. 

 food of adult of, xviii, 148, 152. 

 injury to Sweet Corn by, xviii. 



148, 152. 

 life history of, xviii, 149-150. 

 natural enemies of, xviii, 150-152. 

 remedial measures for, xviii, 152. 

 (See also Corn Root-worm, Lar- 



Corn-Stalk-worm, xxiii, 10. 

 Grain-louse, xxiii, 134, 206. 

 Sow-bugs, xxi, 137. 

 Sow-thistle, Clover Plant-louse on, xxiii, 



208. 

 Sov-beans attacked by Common Garden 



Web-worm, xxi, 108. 109. 

 Spanish flies, xxiii, 111. 

 -needles as food plant of Common, or 

 Little, Negro-bug, xvi, 51 ; xxi, 

 100; xxiii, 116. 

 eggs of meadow-grasshoppers in 

 stems of, xxiii, 146. 

 Spanworm, Brown Strawberry-, xiii, 61, 

 76-78, 179. 

 Green Strawberry-, xiii, 61. 80-81, 179. 

 Horned Strawberry-, xiii. 61, 79-80, 

 179. 

 Spanworms, xxiii, 173. 

 Sparnoplius fulvus as parasite of White- 

 grubs, xxiv, 161-162. 

 Sparrow, Chipping, as enemy of Straw- 

 berry False Worm, xiii, 75. 

 English, June-beetles and their larvae 



eaten by, xviii, 123. 

 Field, as enemy of corn bill-bugs, xvi, 



71. 

 -hawk, June-beetles eaten by, xviii. 

 123, 124. 



