Tobacco dust as repellent — Continued. 
for Onion-maggot, 136. 
for Omnivorous Plant-louse, 146. 
or tobacco extracts as fumigants 
for Lettuce Plant- 
louse, 133. 
for Onion Thrips, 124, 
138. 
stems, directions for fumigating 
with, 159. 
as fumigant for Greenhouse 
White-fly, 123. 
Tomato, 146-148. 
destroyed by Stalk-borer, 147. 
injured by Greenhouse White-fly, 
121. 
by Limonius confusus, 143. 
insect injury to, 146-147. 
strength of insecticide for, 151. 
Tree of heaven, 60. 
tricinctus, Memythrus, 31. 
tripunctata, Oberea, 44. 
tristis, Anasa, 118. 
Trumpet-creeper, 60. 
Cottony Maple Scale on, 62. 
Trumpet-vine, 60. 
Tulip-tree, 60. 
Turnips injured by Limonius con- 
fusus, 143. 
Tussock-moth, White-marked, 10-14. 
description of adult, 13. 
of caterpillar of, 10. 
life history of, 10-13. 
measures against, 14. 
parasites of, 13. 
Twig-girdler, Dogwood, 44-47. 
Twig-girdlers, egg-placing of, 44. 
Tvvig-pruner, Oak. 50-53. 
Tyloderma fragariae, 91. 
Typophorurs canellus, 91. 
U 
ulmi, Lepidosaphes, 57. 
vaporariorum, Aleyrodes, 121. 
vernata, Paleacrita, 23. 
veriscolor, Encarsia, 123. 
Viburnum infested by San Jose Scale, 
60. 
injured by Viburnum Borer, 3 4. 
by White-marked Tussock-moth, 
10. 
villosum, Elaphidion, 50. 
Virginia Creeper infested by San Jose 
Scale, 59. 
injured by Cottony Maple Scale, 
62. 
viridis, Chaetochloa. 124. 
vitis, Pulvinaria, 62. 
vittata, Diabrotica, 115. 
Phyllotreta, 113. 
A\' 
Walnut, Black, infested by San Jose 
Scale, 59. 
injured by Cottony Maple Scale, 
62. 
Caterpillar, 8-10. 
or Willow Scale, 61. 
Washburn, F. L., 109, 148. 
^^ ater-locust infested by Putnam's 
Scale, 61. 
Wax Myrtle, 60. 
Web-worm, Fall, 4-6. 
Weed, C. M., 90. 
Whale-oil soap solution for Onion 
Thrips, 137. 
for Pea-louse, 140. 
for Red Spider, 126. 
formula for, 153. 
White Ash as breeding plant of Li- 
lac Borer, 30, and injured by, 
27. 
infested by San Jose Scale, 59. 
Birch, infested by Putnam's Scale, 
61. 
by Bronze Birch-Borer, 53. 
blast of Onion, 137. 
Clover as food plant of Strawber- 
ry Crown-girdler, 90, 92, 94. 
-fly. Greenhouse, 121-123. 
thrips, and plant-lice, insecticides 
for, 148-149. 
-grubs, 101. 
Whitewash for Scurfy Scale, 57. 
Willow as food plant of Bronze Birch- 
borer, 55. 
. infested by Putnam's Scale, 61. 
by Walnut Caterpillar, 8. 
injured by Cottony Maple Scale, 
62. 
by Oyster-shell Scale, 58. 
by Poplar and Willow Borer, 
40, 41. 
by San Jose Scale, 59. 
by Walnut or Willow Scale, 61. 
by White-marked Tussock-moth, 
10. 
by Yellow Poplar-Caterpillar, 7. 
Memythrus tricinctus bred from, 
31. 
or Walnut Scale, 61. 
Weeping, 40. 
Wireworms, 101, 143-144. 
plants practically uninjured by, 
144. 
remedial measures against, 144. 
