119 



Plant-beetles, xxiii, 12. 



characterization of injury to beets 



by, xxi, 56. 

 Plant-bug, Dusky, as strawberry insect, 



xiii, 10, 61, 62, 124, 127, 135-138. 



See Dusky Plant-bug. 

 Four-striped, xiii, 117. 

 Green, as beet insect, xxi, 52. 

 infested by Sporotrichum globulif- 



erum, xix, 26. 

 Large-eyed, xxi, 94. 

 Tarnished, xiii, 11, 62, 115-135; xxiii, 



12, 118-120, 199, 233. See Tarnished 



Plant-bug. 

 Plant-bugs as 'beet insects, xxi, 50, 56. 

 leaf-footed, xxiii, 197-198, 233. 

 smaller, xxi, 93-96. 

 Plant-lice, xviii, 52, 53: xix, 52; xxii, 



101, 104. 127-129; xxiii, 233. 

 and ants, relations between, xxiii, 126, 



156. 158, 227. 

 and mealy bugs infesting roots of 



Corn, xviii, 53, 55-108. 

 as beet insects, xxi, 50. 56, 80-83, 159, 



161. 

 as food of ladybugs, xxiii, 179. 



of tree-crickets, xxiii, 215, 220, 

 221, 222. 

 character of injury to Corn by, xxiii, 



7. 

 eaten by larger meadow grasshoppers, 

 xxiii, 144. 



by larvae of svrphus-flies, xxiii, 

 "9-10. 162. 

 fungus parasite of, xviii, 75. 

 general description of. xxi, 80. 

 grain, infection experiment with, xix, 



51. 

 infection experiments with, xvii. 82, 



84; xix, 35, 72, 81. 85. 

 infesting Broom-corn and Sorghum, 

 xiii, 11, 40, 41-54. 

 summary of facts relating to, 

 xiii. 53. 

 life history of, xviii. 56: xxi. 81. 

 measures against, xiii, 54; xxi, 81. 

 natural enemies of, xiii, 103; xxi, 81. 

 on Corn, xviii, 57; xxiii, 206-211. 

 rate of multiplication of, xviii, 56. 

 strawberry, xiii, 60, 62, 98-104, 143. 



natural enemies of, xiii, 103. 



remedies for, xiii, 103. 

 winter stage of, in nurseries, xxii, 



104. 

 Plant-louse, Apple, xiv, 98. 

 Clover, xxiii, 208. 

 Corn, xiii, 9, 11. See under Corn 



Plant-louse. 

 Lesser Strawberry-, xiv, 79. 

 Yellow Sorghum-, xiii, 53; xxiii, 210. 



Plantago lanceolata, Common Negro- 

 bug on, xvi, 51 ; xxi, 100. 

 major, Corn Root-aphis infesting, 

 xvii, 67 ; xviii, 61. 

 Plantain as food plant of Apantesis ar- 

 ge, xxiii, 75. 

 of Pale-striped Flea-beetle, xviii. 



22; xxi, 121; xxiii, 108. 

 of Salt-marsh Caterpillar, xxiii, 



74. 

 of W-marked Cutworm, xxiu, 



31. 

 of Yellow Bear, xxiii, 74. 

 infested by Corn Root-aphis, xvii, 67; 

 xviii, 61. 

 by Flea Xegro-bug, xvi, 51. 

 by Melon Aphis, xxi, 81. 

 by Smartweed Flea-beetle, xxi, 119. 

 by Soft Maple Bark-louse, xiv, 104. 

 planus, Ancyrophorus, xxiii, 180. 

 Platygaster error as parasite of Clover- 

 seed Midge, Misc. Ess., 16; 

 xv, 4. 

 of Hessian Fly. xiv. 44. 

 lecanii, xiv, 105. 

 Platymetopius acutus, xxi, 66, 72-73. 

 Platynota flavedana. xxiii, 176. 

 Platynus cincticollis and P. crenistriatus 



feeding on Corn, xxiii, 177. 

 plecta, Noctua. xxi, 102, 104. 

 Plowing Chinch-bugs under, xv, 101 ; 

 xvi, 45. 

 deep and rolling, effect of, on Feg- 



omyia vicina, xxi, 62. 

 deep ' fall, to destroy Garden Web- 

 worm, xxiii, 91. 

 early after Oats to be followed by 

 Wheat, for Grass-worm, xvi, 66. 

 and clean cultivation as protection 

 against bill-bug injury, xxii, 3, 

 16. 

 and heavy rolling after seed is 

 sown, to prevent deposition of 

 Chinch-bug eggs, xv, 98. 

 fall for Corn Root-worm, Misc. 

 Ess., 20; xv, 5. 

 or late spring, to prevent injury 

 by sod web-worms, xxiii, 43-44. 

 to protect beets against cutworms, 

 xxi. 101. 

 late fall, as measure against Ear- 

 . worm, xxiii, 68. 



summer or early fall, to free soil of 

 cutworms, xxi, 101 ; xxiii, 18, 20, 26, 

 29, 31. 

 to destroy eggs and young of grass- 

 hoppers, xxiii, 13. 

 up field and transplanting for straw- 

 berry root-worms, xiii, 174. 

 Plowrightia morbosa, xxii, 125. 



