445 
Peach—Continued 
micro-organisms from diseased trees, 230. 
mildew, notes, 90, 91, 375. 
orchard— 
affected with curl, 89. 
root rot, 377. 
rosette— 
additional notes, 226. 
communicability, 157. 
conclusions regarding, 230, 231. 
description, 296. 
experiments in Georgia, 227. 
extension in the South, 403. 
notes, 94, 226, 304. 
root inoculations, 228. 
rot— 
notes, 92, 174, 412. 
treatment, 417. 
rust- 
in Africa, 410. 
notes, 92, 355, 411, 412. 
winter treatment, 355. 
stem and root tumors, 93, 376. 
splitting of fruit, 374, 404. 
trees— 
connected with almond disease, 67. 
disease in Africa, 404. 
foliage affected by fungicides and insecticides, 
77. 
gumming, 38, 402. 
yellows— 
• appearance, 93. 
cause, 269, 294, 404. 
chemistry, 157. 
communicability, 157. 
cure, 294. 
distribution in United States, 155. 
dread of in California, 155, 156, 294. 
eradication, 295. 
fertilizers, 296. 
in Africa, 404. 
in Connecticut, 156. 
in Eastern-grown trees, 294, 404. 
in Michigan and Maryland, 402. 
in New York State, 154. 
in Victoria, 404. 
law, 306. 
law in Michigan, 169. 
notes, 60, 155, 156, 174, 304 
occurrence,404. 
prevalence, 93. 
remedy, 156. 
theories, 156. 
transferring by knife, 294. 
vs. Agaricus melleus, 377,404. 
Peaches, wilting on trees, 375. 
Pear blight— 
eradication, 295, 374. 
exemption of trees from, 94, 374, 405. 
notes, 163,165,174, 408, 412. 
remedy, 313. 
variety in relation to, 94. 
weather in relation to, 374. 
Windsor— 
notes, 411. 
remedy, 410. 
Pear- 
blossom blight, 411. 
disease— 
new, 303. 
notes, 94, 304, 411. 
French, budded, 258,261. 
injured by blight, 95. 
leaf blight— 
Bordeaux mixture for, 175, 312. 
description, 241. 
Effect of ammoniacal copper carbonate, 243. 
effect of Bordeaux mixture, 243, 
experiments to prevent, 241. 
first appearance of in spring, 94 
notes, 168, 174, 304. 
of Japan stocks, effect of ammoniacal copper 
carbonate, 245. 
spraying for, 419. 
treatment, 174, 300, 307, 309,310, 333, 335,411, 
417. 
leaves, effect of— 
bichloride of mercury, 267. 
chloride of lime, 267. 
mite, treatment, 302. 
orchard— 
cost, of spraying, 338. 
spraying outfit, 337. 
rust, 62. 
scab- 
effect of weather, 94. 
notes, 307. 
time of appearance, 94. 
treatment, 302, 309, 310, 408, 417. 
seedlings— 
effect of leaf-blight, 242. 
experiments, plan, 340. 
experiments with, 338. 
leaf-blight, action of fungicides, 351. 
treatment for leaf blight, 169. 
spotting and cracking, 405. 
stocks— 
American, budded, 259, 261. 
American, effect of ammoniacal copper car¬ 
bonate on leaf-blight, 247. 
American, eff ect of Bordeaux mixture on leaf- 
bliglit, 247 
diseases, 410. 
effect of leaf-blight, 242. 
Japan, budded, 259, 261. 
treatment of American, 246. 
treatment of Japan, 245. 
weight and measurement, 244. 
trees, Bordeaux mixture for lichens, 264 
Pea-root, tubercles, 385. 
Peck, C. H., 147. 
Pectin compounds— 
in cell walls of plants, 140. 
list of reagents for staining, 142. 
Pelargonium blight, 166. 
Pepinos, disease, 300. 
Pepper, disease, 300. 
Pepper tree, disease, 413. 
Peridermium, one stage on Kibes, 401. 
Peridermium pini , 398, 428. 
Peronospora— 
description of two new species, 105. 
