INDEX. 



42S 



Oidiuiu of tlie strawberry, 50. 



— of vine, 37, 44, 48, 102, 115, 150, 156, 



162, 191, 199, 201, 248-50, 309, 356, 358, 

 382, 397. 

 Oil, colza, .325, .326, 327, 351-2. 



— Hsh, 300, 326, 341, 350. 



— hemp-seed, 328. 



— herring, 328. 



— liuseed, 133, 288, 325, 326, 351. 



— olive, 325, 326, 327. 



— poppy-seed, 325, 326, 352. 



— sesame, 326. 



— wliale, 299, 325, 326, 327, 328, 329, 331. 

 Oils and fats, 9, 325. 



Ointment, Balbiani's, 338, 347. 



— mercurial, 393. 

 Olive-tree, diseases of : — 



Cochineal, 136, 351, 389. 

 Gum disease, 80, 114, 394. 

 Hylesine, 145. 

 Leaf spot, 258. 



Smut (fumagine), 51, 77, 288, 393. 

 Onion, diseases of :— 



Disinfection, 58, 223, 279, 323. 

 Fly of the bulb of, 308, 346, 385. 

 Mildew, 244, 398. 

 Smut, 223, 323, 405. 

 Thrips, 357, 375, 405. 



— growing and CSo, 58. 



Onions, formaline versus quicklime on, 323. 

 Oospora scabies (potato scab), 47, 84, 86-7, 



110, 114, 143, 182, 237, 291, 301, 319- 



20, 3.56, 401. 

 Opatrum sabulosuni, 345, 397. 

 Ophiobolus gramiuis, 143, 185, 397. 

 Orange-tree, diseases of : — 

 Cochineal, 77, 136, 152, 292, 306, 343, 



389-90. 

 Fumagine (smut of fruit trees), 30, 51, 77. 



150, 191, 260, 39.3. 

 Orchid, disease of, 255, 370. 

 Organic insecticides, 260. 

 Organoleptic properties of wine and binders 



for bouillies, 285. 

 Orobanehe (broom-rape), brancluug of hemp 

 and tobacco (0. Minor), 211, 397. 



— of clover (0. Minor), 211, 397. 

 Orthocraspeda trima, 196. 

 Orthoptera, 338. 



Oryctes uasicornis (rhinoceros), 67, 330, 397. 

 Otiorhynchus, 351. 



— hirticornis, 345. 



— Ligustici (Liveche's weevil), 68, 391-2. 



— of the vine, vine weevil (0. Sulcatus), 68, 



307, 335, 391. 



— picipes, 68. 



— populeti, injurious to vine, 340. 



— raucus, 68. 



Oxycareuus hyalinipennis, Costa, 304. 

 Oxychloride of copper, 201. 



Paint as an asphyxiant insecticide, 327. 



Pal injector, 11, "30. 



Paper" (fly), 376. 



Papilionaceie, action of SOj on, 79. 



Papilionaceous crops after lucerne, 57. 



Paraffin, 294, 337. 



Parasites, absolute, 3. 



— animal, 2-3. 



Parasites, facultative, 3. 



— polyphagic, 19. 



— vegetable, 2-3. 



— wound, 3. 

 Parasitic fungi, 8. 



" Parasiticine," 314. 

 Parenchymatosis, 1. 

 Paris green. See Emerald Green. 

 Parsley, diseases of : — 



Cercospora apii, 52, 258, 388. 



Leaf spot, 71, 254, 404. 



Septoria petroseliui, 52, 71, 404. 

 Peach-tree, 280. 



— di.seases of : — 



Aphis persicffi, 76, 152, 377, 385. 



Cochineal, 136, 306, 389-90. 



Exoascus deformans (leaf curl), 151, 184_ 



246, 282, 398. 

 Grapolitha, 146, 341. 

 Mildew, 38, 51, 103, 115, 150, 250, 329, 



339, 365, 392. 

 Monilia, 162, 259, 396. 

 Rust of kernel fruit tree, 246, 266, 403. 



— trees, spraying with emerald green, 270. 



— — sensitiveness to copper arsenites, 271. 

 Pears, stony, 22. 



Pear-tree, diseases of :— 

 Agrilus siuuatus, 164, 383. 

 Anthononie, 80, 146, 186, 273, 343, 3S5, 

 Aphis. See Aphides. 

 Aspidiotus ostreaformis, 306. 

 Bitter rot, 116, 142, 255, 267, 394. 

 Bombyx chrysorrhea, 21-2, 80, 260, 386. 

 Browning of leaves (hrunissure), (Phyllo- 



coptes Schlechtendali), 53, 375, 388. 

 Cochineal, 40, 306, 390. 

 Entomosporium maculatum, 164, 167, 169, 



170, 187, 199, 201, 257, 267-8, 277, 279, 



281. 

 Erinosis, 53, 375, 388. 

 Eriocampa, 53, 116, 146, 260, 275, 331, 



.352, 374, 377, 380, 392. 

 Fusicladium, 116, 151, 159, 182, 209, 225, 



257, 267, 273, 393. 

 Gy mnosporangiu m Sabinse ( pear leaf cluster 



cups), 246, 394. 

 Leaf spots, black, 114, 225, 254-7. 

 Lygus, 304, .396. 

 Nectria (canker), 151, 185, 250, 324, 339, 



366, 397. 

 Polyporus sulphureus, 151, 400. 

 Polystigma (leaf blister), 2.50. 

 Psvlla, 112, 304, 352, 358, 400. 

 PjTalis of the pear, 38, 138, 146, 276, 340, 



352, 367, 389. 

 Saw-fly (Tenthredo). See Eriocampa. 

 Sesia, 64, 70, 336, 379, 404. 

 Tiger beetle, -30, 117, 146, 304, 307, 336, 



357, 375, 404. 

 Pear-tree oyster scale, 306. 

 Peas, diseases of : — 

 Altise, 302, 384. 

 Bruchus, 37, 68, .309, 388. 

 Mildew, i<, 113, 115, 150. 184, 191, .392. 

 Mildiou (Peronospora Viciae), 244, 399. 

 Noctua gamma, 157, 357, 384. 

 Red spider, 40, 53, 1-32, 152, 333, 405. 

 Thrips, 308, 333, 367, 405. 

 Pellegrini's bouillie, 169. 

 Pemphigus, 70. 



