XI 
Remedies— Continued. 
pasturing of pigs, 128,129. 
petroleum, crude, 49. 
and fertilizers,??, 
emulsion, 49. 
potash salts, 162. 
potassium cyanide, 49. 
rotation of crops, 48, 50, 58, 75, 80, 109, 
127,128,152.162. 
salt,49,50,76,77. 
spraying, 129,132. 
starvation, 79. 
strychnine, 49. 
sulphate of potash, 132. 
and petroleum,77. 
superphosphates, 77. 
and petroleum,77. 
tar,49. 
turpentine, 49. 
Reptiles and Amphibians as enemies of 
White Grubs, 126. 
Rhizobiinse,101,106. 
Rhizobius.101,106. 
panici,106. 
poae,106. 
spicatus, 53,57,104-106. 
description, 105. 
Riley, C. V., 13,16,17,24.114,123,124,125,126,135, 
144,150,151,171. 
Robin as enemy of Wireworms,47. 
enemy of White Grubs, 123,124. 
Root Aphis,Corn,56,58-85. See under Corn 
Root Aphis, 
ght. of Coi n,5,52,59. 
-lice, Corn, 4, 52, 53, 55, 57. See under 
Plant-lice. 
Louse, Corn, 4, 5, 52, 58-85. See under 
Corn Root Aphis. 
Grass,53,57,85-93. See under Grass 
Root Louse. 
Woolly Grass,53,104-106. 
description,105. 
W ebworms, Corn, 6. 
Worm, Northern Corn,34,55,146,154-165. 
See under Northern Corn Root 
Worm. 
Southern Corn, 55,146-154. See under 
Southern Corn Root Worm. 
Worms, Corn. 4,5,52,53. 
rosae, Siphonophora,56. 
Roses, petals of, as food of adult Southern 
Corn Root Worm, 148. 
Rotation of crops for Corn Root Aphis, 58, 
75,80. 
for Cutworms, 50. 
for Northern Corn Root Worm, 162. 
for Southern Corn Root Worm, 152. 
lor White Grubs,50,109,127,128. 
for Wireworms,48,50. 
rubiginosa, Lachnosterna, 115. 
Rudbeckia roots, pupae of Southern Corn 
Root Worm found among,148. 
rufans, Bacillus, 150. 
-D 
rugosa, Lachnosterna, 54,111,112,113,116,119, 
121,138,139,140,143. 
Rumexcrispus infestedby CornRoot Aphis, 
61,74. 
Rye as breeding place of Chinch Bug, VIII. 
subject to injury by Wireworms,30. 
S 
Salt for Corn Root Aphis,76,77. 
for Wireworms,49,50. 
scabrinodis lobicornis, Myrmica, 8, 11, 12, 
53, 66. 
schaufussi, Formica, 53.66,90. 
Schizoneura corni, 57,86. 
plants infested by, 57,86,89. 
panicola,53,57,68,85-93. See under Grass 
Root Louse. 
venusta,93. 
plants on which it occurs, 93. 
Seiara, 8, 19-21. See under Black-headed 
Grass Maggot. 
Scirpus fluviatilis infested by Southern 
Corn Root Worm, 148. 
Screech Owi as enemy of White Grubs,123. 
Sedges infested by Southern Corn Root 
Worm, 148. 
Seed-corn Maggot,8,16-19. 
description, 17. 
distribution, 17. 
life history,17. 
Maggots,4,7. 
Serica vespertina dusted with spores of 
Botrytis tenella,133. 
Setaria as food of Corn Root Aphis, 60,61,62. 
destroyed by White Grubs. 112. 
germanica infested by Corn Root Aphis, 
61. 
glauca infested by Schizoneura venusta, 
93. 
infested by Grass Root Louse, 88,89. 
viridis infested by Schizoneura venusta, 
93. 
setariae, Tychea, 101. 
Shepherd’s Purse infested by Geoica squa¬ 
mosa. 99,100. 
Siphonophora avenae,56. 
rosae, 56. 
Six-legged larvae, injuries by, 8,21-51,55. 
Skunks as enemies of White Grubs. 121. 
Slingerland, M. V., 56. See Comstock, J. H„ 
and Slingerland. 
Small-striped Squash Beetle, 156, 
Smartweed. 62, 68, 80,156. 
as food of Corn Root Aphis,60,61,75,78. 
infested by Grass Root Louse,88,89. 
pollen as food of adult Northern Corn 
Root Worm, 158. 
Smith, J. B.. 42, 141. 
Solanum canadense as food of Southern 
Corn Root Worm, 148. 
Solenopsis debilis,8,9,53,66. 
attendant on Corn Root Aphis, 10. 
on Geoica squamosa, 99, 100. 
description, 10. 
distribution, 10. 
