516 



o. 



Oak, Ellopia soiuniaria on, 359. 



furniture damaged by borers, 467. 



list of caterpillars affecting, 256. 

 Oat, destruction of crops by Aphis, 57. 

 Oats, Meromyzaand Oscinis infesting, 82. 



root-disease of, 264. 

 Oenothera biennis, Graptodera on, 26. 



Lepidoptera bred from, 275. 

 Okra, fed upon by Proconia undata, 338. 

 Onions, wireworms damaging, 166. 



"white blast" on, cau.sed by Thrips, 30]. 

 Opuntia engelmanni, Syrphid larvfe in. 319. 

 Orange, bored by Curculionid in Australia, 434. 



bored by Xyleborus pubescens, 167. 



Ceratitis attacking fruit of, 6. 



gas experiments on, 457. 



infested by long scale, 398. 



plant bug on, 410. 



red scale of, 417. 



rust mile of, 434. 



tree borers ol, 418. 

 Osage orange, food of silkAvorm, 301. 

 Oxalis strieta, Aphis on, 235. 

 Ozonium, on cotton, 263. 



P. 



Palm, exempt from Icerj'a in Honolulu, 330, 



Panicum, Aphis on, 235. 



Pansy, Oniscus injuring, 69. 



Parsnip, Papilio on, 338. 



Pea, gernaination of weeviled seeds, 485. 



weevil of, 252, 256, 359, 365. 

 Peach, a fruit-fly of, in Bermuda, 5. 



Aphis of, 270. 



Ceratitis on, 120. 



Chrysochus on, 162. 



Diabrolica injuring, S4. 



food-plant of Lecaniuni pruinosum, 384. 



injured by green beetle, 425. 



Phiceotribus liminaris on, 452. 



rose-chafer on, 221, 271. 



scale on, in Australia, 435. 



trees killed by Scolytus rugulosus, 298, 299. 



twigs said to be girdled by Oberea, 298. 

 Pear, Aragnomus attacking, 37. 



Aspidiotus on, 68. 



damaged by Psylla, in Russia, 393. 



Hyphantria damaging trees, 338. 



insecticides for, 364. 



insects affecting, in Cornell bulletin, 308. 



roso-ohafer on, 221, 271. 



Sciara larvje under bark, 126. 



Selandria on, in Australia, 480. 



trees killed by Scolytus rugulosus, 299. 

 Pecan, Oncideres on, 338. 



Phylloxera galls on, 466. 



trees defoliated by Hyphantria, 338. 

 Peppergrass, poisoned, for cut^vorms, 248. 

 Pepul, destroyed by India locust, 433. 

 Persimmon, defoliated by Hyphantria, 338. 



Oncideres on, 338. 

 Phleum pratense, attacked by Hessian fly, 306. 

 Pine, Scythropus elegans on, 37. 



white, v.'^eevil of, 468. 

 Piuus insignis, motli on, 117. 



strobus, Pissodes strobi on, 468. 



Plantago major. Aphis on, 235. 

 Plantain, root-louse on, 235. 

 Plum, 238, 239. 



Aphides on, 405. 



curculio of, 219, 227, 254. 



gouger on, 227. 



hog, food-plant of Icerya, 408. 



Hyphantria defoliating trees, 338. 



injured by green beetle, 425. 



insecticides for, 364. 



occurrence of Phorodon on, 185. 

 i Paris green as nrotection to, in England, 293. 



i ijear slug on, 163. 



1 Phorodon mahaleb on, 468, 469. 



plant louse on, 479. 

 I rose-chafer on, 271. 



varieties of, attacked by Lop-louse, 486. 



varieties of, exempt from hop-louse, 486. 

 Polygonum persicarium. Aphis on, 231. 

 Pomegranate, damaged by India Virachola, 44. 

 Poplar, food-plant of Melanoxanthus, 290. 



Mytilaspis pomorum on, 469. 

 Poppy, devoured by rose-chafer, 22. 

 Populus monilifera, supposed bed-bugs under 

 bark, 21. 



food-plant of Melanoxanthus, 290. 



tremuloides, Bryobia eggs on bark, 49. 

 Potato, attacked by stalk-weevil, 259, 



Australian lady-bird on, 434. 



blister beetles on, 416. 



flea beetles on, in Australia, 434. 



moth of, in Australia, 435, 

 Prickly ash, Papilio oxynius feeding on, 32. 

 Primrose, yellow, injured by sparrows, 393, 

 Primula vulgaris, damaged by sparrows, 394, 

 Prune, food-plant of Lecanium pruinosum, 384. 



Italian, exempt from hop-louse, 486, 



Thricolepis inornata on, 468. 

 Prunus, Clisiocampa disstria on, 478. 



lauro-cerasus, food-plant of Lecanium, 384. 

 Puccinia coronata and graminis not the cause 



of "rust" on oats, 301. 

 Pumpkin, injured by Australian lady-bird, 434. 

 Purslane, Aphis on, 235. 



Pyrethrum, in Australia and South Africa, 79, 

 Pyrus, eaten by Mamestra, 63, 



Q. 



Quercus, Clisiocampa disstria on, 478. 

 Quince, rose-chi.fer on, 221. 

 slug on, 171, 



Ragweed, food-plant of Aphis, 235. 

 Ramie, said to support silk-worm, 301. 

 Ramulariatulasnei, fungus on strawberry, 364. 

 Raspberry, Agrilus ruficollis on, 435. 



enemies of, 366, 



injured by Agrotis fenniea, 248. 



insects injuring, in Cornell bulletin, 308, 



rose-chafer on, 221, 

 Rhubarb, curculio of, 254. 

 Rosa, Clisiocampa disstria on, 478. 

 Rose, attacked by Icerya in Honolulu, 330. 



Caccecia injuring, 19. 



Cecidomyiid on, 294. 



chafer of, 220, 221, 271, 272. 



I 



