Index. 651 



•^' PAGB- 



Pachyneuron aphidivorus parasitic on plant lice 481 



Parasitic insects affecting plant lice 480 



Paris green, adulteration 230 



rate of application 230 



use 216, 230 



Pasturage of alfalfa 559 



Peach tree borer, notes on 460 



on nursery stock 460 



Periodicals presented to the Station v 26 



Permanency of alfalfa 559 



Phorodon hunmli on plums 485 



Phosphoric acid in fertilizers 82, 186 



sugar beets 195 



PJiytophthora infestans. (See Potato blight, late.) 



Pickle industry in Long Island 13 



Pickles, yield 431 



Pistol case bearer, notes on 461 



on nursery stock 461 



Plant diseases. (See under particular diseases.) 



nature 232 



food, cost in mixed fertilizers 34 



for sugar beets, sources 196 



required by alfalfa 556 



sugar beets 194 



trade Talues of in chemicals. 35 



utilization by potatoes . 616 



lice attacking currants 485 



classification 471 



descriptions, enemies and treatment 470 



of species 482, 485 



dipping nursery stock infested with 20, 463 



experiments against 476 



insecticides used in combating 473 



investigations and experiments 21 



life history 472 



natural enemies 478 



