Potato-beetle, Colorado, eggs of, eaten by Me- 
gilla maculata, 74. 
Praon cerasaphis, 73. 
pratense, Phleum, 107. 
TrifoHum, 43. 
Pricer, John Lossen, 29, 30. 
Proctotrypid parasite of Chrysopa eggs, 78. 
of eggs of Podisus maculiventris and 
Euschistus variolarius, 75, 11. 
Pseudococcus trifolii, 117-120. 
in nests of Lasius niger americanus, 27. 
(See Clover-root Mealy Bug.) 
punctatus, Phytonomus, 83. 
Pyralis costalis, 96. 
farinalis injurious to stored clover hay, 97. 
Pyrethrum and flour, dusting with, when 
stacking clover hay, 99. 
Q 
quadratus, Platychirus, 73, 76. 
(luadrimaculatus, Collops, 90. 
R 
Ragweed as food plant of Clover Stem-borer, 
107. 
ramosus, Erigeron, 107. 
Red Clover, 41, 42. 
as breeding plant of Clover Callipterus, 
106. 
as food plant (in Europe) of Clover 
Leaf-midge, 99. 
of Clover S'itones, 113. 
of Sitones hispidttlus, 116. 
of Sitones lineellus, 117. 
average crop of seed of, in northern and 
central Illinois, 43. 
chief food plant of Clover Seed-cater- 
pillar, 61. 
of Clover Seed-chalcid, 53. 
of Clover Seed-midge, 46, SO. 
Clover-root Mealy Bug common on, some- 
times killing, 118. 
damage to, by Pea- or Clover- louse, 66, 
67-68. 
injured by Clover Stem-borer, 107. 
one of chief food plants of Clover Root- 
borer, 93. 
pollination of, 44. 
preference of, by Clover Leaf-weevil, 83. 
short rotation period in, as measure against 
injurious insects, 46, 65, 95. 
Reinecke, Ottomar, 83. 
Remedies and preventives for insect depreda- 
tions: bisulphid of carbon, 52, 99. 
brush and cultivator, or brush and pan, 
method, 81. 
burning chaff and stems of Clover after 
hulling, 60. 
clipping off or pasturing off heads of 
first-year Clover, 60. 
cutting and storing Clover hay early, 
65. 82. 
Remedies, etc.- — Continued. 
cutting Clover early, 51, 82, 112. 
or pasturing Clover in latter part of 
its first season, 82. 
volunteer Clover in early June and 
speedily disposing of heads, 65. 
deep, thoro, and repeated stirring or 
old corn ground, 24. 
destruction of larvae, 92. 
of outstanding Clover, 60. 
of volunteer Clover, 46, 52, 60, 65, 
112. 
drilling in Clover seed, 61. 
dusting hay with pyrethrum and flour 
when stacking, 99. 
early pasturing or cutting of Clover, 
45, 46, 51. 
fertilization, high, 81. 
fertilizers, 95. 
heating seed, 52. 
hydrocyanic acid gas, 99. 
kerosene emulsion, 81. 
logs or rails put under clover haystacks, 
98. 
maintenance and increase of fertility of 
soil, 25. 
mowing back Clover, 51. 
pasturing Clover in fall of the first year, 
65. 
lightly o^ clipping back in spring, 
45,, 52, 82, 92. 
planting early maturing peas, 81. 
peas distant from Clover, 81. 
plowing clover seeds under, 60. 
vinder after second season, 92. 
infested Clover under, 45, 81, 92. 
old clover fields, then harrowing and 
rolling, 65. 
soon after removal of clover hay crop, 
95. 
repellents, 1-26. See Corn Root-aphis 
repellents and Rex Dip. 
Rex Dip, 14, 15, 16, 17, 22, 23. 
salting hay at bottom of stack, 98. 
seed-corn test when repellents are to 
be used, 26. 
short rotation period in Clover, 46, 65, 
95. 
in Corn, 24. 
sowing Clover remote from old clover 
fields, 65. 
whale-oil soap solution, 81. 
and tobacco decoction, 81. 
repanda, Cicindela, 90. 
Repellents against Corn Root-aphis, experi- 
ments with, 1-26. See under Corn Root- 
aphis. 
Rex Dip as a repellent against Corn Root- 
aphis and Corn-Field Ant, 14, 15, 16, 
17. 
special test on reaction of Corn-Field 
Ant to, 22, 23. 
