121 



Page. 



Orchard enemies, Colorado report for 1904 58-59 



Orchards, increase in trees in United States, 1890-1900 7 



Orthoptera, grasshoppers subject to legishition 19 



OsBORN, HERBERr. paper on " Brief notes on Ohio insects for 1904 " 49-51 



Osciiiis soror. ^Minnesota report for 1904 56 



Oviposition, date, hypothesis for insects hiljernating as adults ^ 34-37 



Mormon cricket (Anuhnis simpleje), notes 62, G3 



sweet-potato weevil, remarks 67 



Pagoda, Colorado, numbers of Mormon crickets 65 



Paleacrita vernata, Ohio report, 1904 53 



Palms, infestation with mealy bugs, notes ; 80,81 



Papaipema niteht. New York report, 1904 51 



Parasites and insecticides for insect pests, variableness of results 75 



Paratenodera sinensis, introduction into New Jersey 77-78 



Paris green and lime mixture, use against Alctia argillacca 70 



opposing views as to use against boll weevil 42 



use and failure as boll weevil remedy 39 



Pea aphis, Colorado report for 1904 60 



Peach aphis, black, Colorado report for 1904 59 



borer, numbers in Ohio, 1904 50 



orchard, injury liy red-legged flea-beetle in Ohio 53 



orchards, injury by plum curculio 69 



trees and blossoms, injuries by insects in Georgia 70 



Pear blight, insects as means of spread 108 



Psylla, New York report for 1904 51 



slug, injury to cherry trees in Ohio 49 



Pears, destruction by ant, Iridomiirniex humilis 83 



Pecan, injury by insects in Georgia in 1904 70 



Pegomija ricina, Colorado report, 1904 61 



Pennsylvaniji, use of lime-sulphur wash 28 



Pentilia ntisclla, occurrence in New Jersey, note 77 



Pests. See Insects. 



Phanerotoma tibialis, Georgia report for 1904 73 



Phillips, J. L., paper on "Some notes on the fumigation of household 



insects with hydrocyanic-acid gas" 95-97 



Phinotas oil, use against black-fly 100 



Phytoptida:», genus subject to legislation 19 



Phytoptus mite, Colorado report for 1904 59 



Pines, infestation with Lecanium 57 



Plant lice, Colorado report for 1904 isee also Aphis) 58-59 



distribution and care by ants 80,81 



New York report, 1904 51 



Plum aphis, green, Colorado report for 1904 58 



curculio, Georgia report for 1904 69 



Minnesota report for 1904 . 56 



Ohio report for 1904 51 



Polychrosis viteanu. Ohio report for 1904 54 



Poplar, infestation with oak borer in Colorado, note 59 



Poplars, attack of willow weevil, note 51 



infestation with willow curculio 56 



insect injury in Colorado in 1904, note 59 



Porto Rico, coffee trees, infestation with leaf miner 97 



Potassium cyanide, use in fumigation against codling moth 102 



insecticide fumigation 95 



Potato flea-beetle, Colorado report for 1904 61 



Potatoes, sweet, injury by weevil 67 



Powder jiost beetle, injury to electric cars 53-5-1 



President, United States, remarks on protection against insects 9 



Prionoxystus rohini(v, Colorado report for 1904 59 



Proprietary insecticides, testing, remarks 74 



Pseudococcus citri. distribution and care by ants 80 



Psylla pyri, New York report, 1904 51 



Publications, economic entomology, character -_ 18 



use of trade names, names of persons, etc 73 



