xlti 
nitela, Gortyna, 147. 
Hydroecia, 147. 
Papaipenia, 146, 147. 
O 
Oak galls, Ninebark Borer bred from, 
37. 
Heart-wood Borer found in, 68, 69. 
Infested by Putnam's Scale, 61. 
by Walnut Caterpillar, 8. 
injured by Cottony Maple Scale, 
62. 
by White-marked Tussock-moth, 
10. 
Twig-pruner, 50-53. 
Oaks, 60. 
injured by Forest Tent Caterpillar, 
21. 
Oak Twig-pruner bred from, and 
injurious to, 50, 51. 
Oats fields, Anomala binotata found 
in, 73, 74. 
Oberea tripunctata, 44-47. 
Omnivorous Plant-louse, 146. 
Onion, 133-138. 
insect enemies of, 133. 
-louse, 137. 
-maggot, 100, 101, 133-137. 
Thrips, 123-124, 133, 137-138. 
white blast of, 137. 
Onions, 99, 100. 
injured by Limonius confusus, 143. 
Opulaster opulifolius, borer infest- 
ing, 34. 
injured by Ninebark Borer, 37. 
opulifolius, Opulaster, 34, 37. 
Orchards injured by Forest Tent 
Caterpillar, 21. 
by green fruit-worms, 76. 
by Gypsy Moth, 19, 20. 
by White-marked Tussock-moth, 
10. 
Orchestes canus, 83-86. 
pallicornis, 84. 
Osage Orange infested by Putnam's 
Scale, 61. 
injured by Oak Twig-pruner, 50. 
by San Jose Scale, 59. 
Osten-Sacken, Baron R., 72. 
Otiorhynchus ovatus, 90-94. See 
Strawberry Crown-girdler. 
ovatus, Otiorhynchus, 90. 
Oyster-shell Scale, 57-58. 
pacifica, Taeniocampa, 78. 
Packard, A. S., 69. 
Paleacrita vernata, 23-26. 
pallicornis, Orchestes, 84. 
Pansy-geranium infested by Green- 
house "VVHiite-fly, 123. 
Papaipema nitela, 146, 147-148. 
I'apaw, 60. 
Parandra brunnea, 68-73. See Heart- 
wood Borer. 
Parasites and other enemies: 
of Apple Flea-weevil, 86. 
of Brown-tail Moth, 21. 
of Cabbage Plant-louse, 112. 
of Canker-worm, Common, 23. 
of Colorado Potato-beetle, 142. 
of Cottony Maple Scale, 65. 
of Dogwood Twig-girdler, 47. 
of green fruit-worms, 78. 
of Greenhouse White-fly, 123. 
of G'ypsy Moth, 21. 
of Heart-wood Borer, 69. 
of Imported Cabbage-worm, 105- 
106. 
of Lettuce Plant-louse, 132-133. 
of Onion-maggot, 135. 
of Pea-louse, 139. 
of Variegated Cutworm, 131. 
of White-marked Tussock-moth, 13- 
14. 
Paris green and Bordeaux mixture 
for Cabbage Flea-beetle, 
114. 
for Colorado Potato-bee- 
tle, 142. 
for Potato Flea-beetle, 145. 
carbolic acid, soft soap, and 
soda against Lilac Borer, 31. 
directions for using dry, 149- 
150. 
for Cabbage-worms, 106, 133. 
for Catalpa Sphinx, 3. 
for Colorado Potato-beetle, 142. 
for Common Asparagus-beetle, 
104. 
for Common Canker-worm, 26. 
for cutworms, 107, 132. 
for Fall Web-worm, 6. 
for Striped Cucumber-beetle, 116. 
for TVliite-marked Tussock-moth, 
14. 
formula for liquid spray of, 150. 
Parsnips, 99. 
Patch, Edith M., 90, 92, 94, 146. 
Pea-louse, 138-140. 
Peach infested by Cottony Maple 
Scale, 62. 
by Viburnum Borer, 34. 
injured by green fruit-worms, 75. 
Oak Twig-pruner bred from and 
injurious to, 50, 51. 
Pear infested by San Jose Scale, 59. 
by Scurfy Scale, 56. 
injured by green fruit-worms, 75. 
by Oak Twig-pruner, 50, 51. 
liable to injury by Cottony Maple 
Scale, 62. 
Peas, 100. 
garden, 138-140. 
