Rhizobius, 89, 93. 
panici, 94, 
poe, 94. 
spicatus, 46, 50, 92-94. 
description, 93. 
Riley, @. Vay TE814, 16, 207 L005 108541095 
PTO) a SESS Laie 82) Misa SAGs 
Robin as enemy of Wireworms, 41. 
of White Grubs, 108, 109. 
Root Aphis, Corn, 48, 50-75. See under 
Corn Root Aphis. 
blight of Corn, 4, 45, 52. 
-lice, Corn, 8, 45, 46, 48, 50. See 
under Plant-lice. 
Louse, Corn, .8, 4, 45, 50-75. See 
under Corn Root Aphis. 
Grass, 46, 49, 75-82. 
Woolly Grass, 46, 92-94. 
description, 93. 
Web-worms, Corn, 5. 
Worm, Northern Corn, 30, 48, 129, 
185-145. See under North- 
ern Corn Root Worm. 
Southern Gorn, 47, 129-135. See 
under Southern Corn Root 
Worm. 
Worms, Corn, 8, 5, 45. 
rose, Siphonophora, 48. 
Roses, petals of, as food of adult South- 
ern Corn Root Worm, 131. 
Rotation of crops for Corn Root Aphis, 
51, 66, 4 
for Cutworms, 44. 
for Sore Corn Root Worm, 
for pautern Corn Root Worm, 
13 
for yraute Grubs, 344,96, -112, 
. for Wireworms, 42, 44. 
rubiginosa, Lachnosterna, 101. 
Rudbeckia roots, pupe of Southern Corn 
Root Worm found among, 130. 
rufans, Bacillus, 132. 
rugosa, Lachnosterna, 47, | ISs 399). L022 
LOSS 106) 12 le 122, 1237 126. 
Rumex crispus infested by Corn Root 
Aphis, 58, 65. 
Rye as precans, plant of Chinch Bug, 
subject to injury by Wireworms, 26. 
Ss 
Salt for Corn Root Aphis, 67, 68. 
for Wireworms, 43. 
scabrinodis lobicornis, Myrmica, 7, 9, 46, 
schaufussi, Formica, 46, 57, 79. 
Schizoneura corni, 49, 75, 79. 
plants infested by 49, 79. 
panicola, 46, 50, 59, 75-82. See un- 
der Grass Root Louse. 
venusta, 82. 
plants on which it occurs, 82. 
Sciara sp., 7, 16-18. See under Black- 
headed Grass Maggot. 
Scirpus fluviatilis infested by Southern 
Corn Root Worm, 130. 
nee ap Owl as enemy of White Grubs, 
Sedges infested by Southern Corn Root 
Worm, 130. 
Seed-corn Maggot, 7, 14-16. 
description, lays 
distribution, 14. 
life history, 15. 
Maggots, 4, 6. 
Serica vespertina dusted with spores of 
Botrytis tenella, 117. 
Setaria ae food of Corn Root Aphis, 58, 
destroyed by White Grubs, 99. , 
germanica infested by Corn Root 
Aphis, 53, 
glauca infested by Schizoneura ve- 
nusta, 82. : 
ee by Grass Root Louse, 77, 
‘ 
italica, infested 
venusta, 8&2. 
viridis infested by same, 82. 
setarie, Tychea, 89. 
Shepherd’s Purse infested by Geoica 
squamosa, 87, 88 
Siphonophora avene, 49. 
rose, 48. f 
Six-legged larve, injuries by, 7, 18-44, 
by Schizoneura 
Skunks as enemies of White Grubs, 109. 
Slingerland, M. V., 48. See Comstock, J. 
H., and Slingerland. 
Small-striped Squash Beetle, 137. 
Smartweed, 54, 60, 70, 137. 
as food pe Corn Root Aphis, 53, 54, 
66, 68. 
infested by Grass Root Louse, 76, 
78. 
pollen as food of adult Northern 
Corn Root Worm, 139. 
Smithy Juloos Uae 
Solanum carolinense as food of Souehen = 
Corn Root Worm, 131. 
Solenopsis debilis, 7, 8, 46, 57. 
attendant on Corn Root Aphis, 8. 
on Geoica squamosa, 88, 89. 
description, 9. 
distribution, 8. 
injuries to strawberries, 8. 
fugax, 8. 
molesta, 8. 
sorghiellus, Coecus, 94. 
Dactylopius, 46, 94. 
Sorghum, 62, 63, 142. 
favorable to development of North- 
ern Corn Root Worm, 138. 
infested by Corn Leaf Aphis, 60, 61. _ 
by Corn Root Aphis, 52, 60. 
by Grass Root Louse, 77. 
by Sorghum Mealy Bug, 94. 
Louse, Yellow, 61, 63. 
Mealy Bug, 46, 94-95. 
as a Grass Insect, 94. 
Ants attendant on, 94, 95. 
dates of collection, 94, 95. 
description, 95. 
methods of multiplication, 
94 
plants infested by, 94. 
pollen as food of adult Northern 
Corn Root Worm, 139. 
Sorrel infested by Corn Root Aphis, 53. 
Southern Corn Root Worm, 47, 129-135. 
of injury, 
8. 
129-131. 
134-135. 
character 
description, 
food of adult, 130-131, 133. 
injury to Sweet Corn, 130, 134. 
life history, 131. 
natural enemies, 132. 
remedial measures, 134. 
Sparrow, English, as enemy of White 
Grubs, 108-109. 
Hawk Suey of White Grubs, 
108 
spicatus, isang, 46, 50, 92. 
Sporotrichum, 105. 
globuliferum, 111, 117, 120, 142. 
spores ot infect White Grubs, 
11 
Spraying trees for destruction of May 
Beetles, 118, 116 
