VIII 
INDEX. 
O 
Oak, bur, 138. 
Oats, 5. 
insects injurious to, 103. 
Observations on the Angoumois Grain 
moth and its Parasites, 144. 
occidentalis, Thuja, 138,141. 
Oils as insecticides, 58,59, 
oleivorus, Phytoptus, 124, 
oleracea, Portulaca, 19. 
opaculus, Anisodactylus, 112. 
Orange, Osage, insects affecting, 104. 
Orange rust, 124. 
Orgyia leuco.'tigma, 100. 
Ormenis pruinosa, 104. 
Ormerod, Eleanor A., 142. 
Orohena rimosalis, 104. 
orobence, Apanteles, 104. 
Ortyx virgvnianus , 44. 
Osage orange, insects affecting, 104. 
P 
pallipennis, Hydnocera, 104. 
Parasites. 
Gregarina, 23. 
insect, 
on Angoumois grain moth, 150. 
on army-worm, 102. 
on crownborer, 73. 
on melon plant louse, 88,90. 
on purple cabbageworm, 104. 
fungus, 
on Anisoplia an striae a , 54. 
on chinch-bug, 45,53,54,56. 
bacteria, 45,52,56. 
Entomophthora, 53,54,56,57. 
Micrococcus insectorum, 52,56. 
on flies, 47,53. 
on grasshoppers, 47. 
on silkworm, 45,52. 
Paris green, 30, 74,100. 
Partridge, 44. 
Patrobus, 113. 
longicornis, 113. 
Pauls, Gustavus, 11. 
Peach, bored by Anarsia, 77. 
twig borer, 77. 
larva, 79. 
moth, 79. 
Pear, 98,140. 
Pear-leaf blister, 125. 
Pear slug, (See cherry slug). 
Pe brine, 54,55. 
Peck, Prof, A. J., on Selandria cerasi, 98. 
pennsylvanica. Epicauta, 104. 
pennsylvanicus, Harpalus, 112. 
permundus, Pterostichus, 110. 
Peronospora, 23. 
Petroleum, (See kerosene). 
Pettit, J., 78. 
Phalcenidce, 133. 
Phoma, 109. 
Physogaster lav varum, 150, 
Phytoptus, paper on, 123. 
description of, 130. 
habits of. 133. 
of the vine, 123. 
remedies for, 142. 
species of, 133. 
abnormis, 134. 
acericola, 135. 
consimilis, 137. 
fraxini, 136. 
oleivorus, 124. 
pyri, 125,134,140. 
quadripes, 133,135. 
querci, 138. 
salicicola, 138. 
thujas, 138,139. 
ulnvi, 137. 
picta, Mamestra, 103. 
Pieris rapee, experiments on, 92. 
bisulphide of carbon for, 95. 
hot water for, 93. 
kerosene emulsion for, 93. 
lime for, 97. 
pyrethrum for, 93. 
saltpetre and salt for, 93. 
sulphur for, 95. 
tar water for, 97. 
tobacco smoke for, 97. 
Plant lice. 5, 7, 41, 42, 56, 84, 106, 109, 111, 113, 
114,117, 118, (see Aphis). 
Plant louse, corn, 5. 
grain, 5. 
grape, 6. 
melon, 83. 
Plant mites, 123. 
habits of, 133. 
remedies for, 142. 
Plants, cueurbitaceous, 83. 
Platynus, 109. 
decorus, 109. 
limbatus, 109. 
plorabunda, Chrysopa, 42. 
Plum, 6, 77. 
Aphis, 6. 
Podura, 117. 
Poison ivy, 134. 
Pollen, 22, 23, 30, 57, 109, 112, 114, 115. 
Poplar. Lombardy, 8. 
borer of, 121. 
Portulaca oleracea, 19. 
Potash, 59. 61. 
Prairie chickens, 44. 
Prairie Farmer, on the corn root-worm, 12 
on the red spider, 124. 
Predaceous beetles, the food relations of 
105. 
ground beetles, 7,107. 
Protozoa, 23. 
pruinella, Anarsia, 77. 
pruinosa, Ormenis, 104. 
Pteromalus, 151. 
| ealandree, 151. 
