448 
Root—Continued, 
tubercles—Continued, 
of pea, no dimorphism in, 385. 
of trifolium, 386. 
Rose— 
blight, notes and treatment, 417. 
cuttings, attacked by fungi, 305. 
leaves— 
disease, 378. 
injury to. by asphalt vapors, 378. 
mildew— 
sulphur, 312. 
treatment, 313. 
Rosette of peach. (See Peach rosette.) 
Rot— 
bitter, of apple, remedy, 411. 
black, notes, 54, 163, 174. 
black, of grape, copper sulphate and soda for, 
311. 
brown, of grapes, prevention, 62. 
oi sweet potatoes, 55, 411. 
soft, of sweet potatoes, 56. 
stem, of sweet potatoes, 160. 
stem, of tobacco, 409. 
Rot of— 
lettuce, 408. 
peach— 
notes, 92, 174, 412. 
roots, 377. 
treatment, 307, 415. 
plum, treatment, 307, 415. 
potato— 
in Belgium, 313. 
notes, 57, 171, 407. 
treatment, 174, 310, 311. 
scarlet clover, 411. 
tomato, prevention, 409. 420. 
Roumegnere, notice, 400. 
Rubus, disease, 165. 
Russia— 
diseased grain. 302. 
fungi from, 321. 
Rust— 
affecting wheat and othercereals, experiments in 
treating, 195, 226. 
amount on wheat plants. 211. 
black, of cotton, 53, 299. 
fungi, 158. 
in Australia, 423. 
in India, 208. 
resisting wheats, 196. 
white, of beets, 102. 
Rust of— 
apple, 164, 408. 
apple, treatment with Bordeaux mixture, 174. 
beans, 63. 
beet, 303. 
beet leaf, cause, 408. 
black here¬ 
in Pennsylvania, 312. 
mycelium, 310, 328. 
notes, 57,162, 408. 
treatment, 417. 
bramble, 412. 
carnations, 167, 305, 306. 413, 414. 
celery, 299. 
Rust of—Continued, 
cereals, 52, 174, 301. 
cereals, prevention, 53. 
clover, 90. 
coffee, 299, 381. 
cotton— 
description, 48. 
in Ecuador, 47, 320. 
elder, 57. 
grape in New York, 310. 
hollyhock, 44, 57. 
hop in Africa, 404. 
marsh mallow, connection with wheat rust, 
302. 
peach — 
in Africa, 410. 
leaf, 412. 
note on, 92. 
pears, 62. 
pine, new, 44, 326. 
plum leaves— 
notes, 412. 
treatment, 174 
prune— 
cost of treating, 362. 
distribution, 354. 
treatment, 356. 
raspberries, 57. 
raspberries in Pennsylvania, 312. 
rye, 62. 
strawberries, 62. 
wheat— 
ammoniacal copper carbonate treatment, 218, 
219. 
bordeaux-mixture treatment, 218,219 
cause, 408. 
conference in Australia. 287. 
copper sulphate for, 415. 
corrosive-sublimate treatment, 218. 
dissemination of spores, 298. 
experiments at Garrett Park. Md , 195, 212. 
experiments at Manhattan. Kans 213 
experiments at Rockport, Kans., 216, 222,225 
experiments to prevent, 195. 
ferrous-sulphate treatment, 218,219 
fungicides, used for. 199. 216, 222. 
general condition of plants, 210, 211. 
hot-water treatment, no benefit from, 218 219. 
immersion of seed, 198. 
in Africa, 299. 
in Australia, 195. 
insects eating, 319. 
in United States, 196. 
loss in Australia, 287 
notes, 300. 
potassium-bichromate treatment, 218. 
potassium-sulphide treatment, 218,219. 
remedy, 298. 
soil treatment, 198. 
spraying, 172,196,198. 
spreading, 209, 315. 
Strawsonizer, 308. 
sulphate-of-iron treatment, 218. 
sulphur treatment, 218 219. 
time of appearance; 206, 208. 
treatment, 288, 415, 419, 421. 
