NEw YorK AGRICULTURAL EXPERIMENT STATION. 429 
Potassium, relation to fertilizers, 14, Potato scab — Continued. 
a he 11, 566; figures, 6, 345, 346; 
sulphide as a fungicide, 6, 348; as 
an insecticide, 7, 146; for apple 
scab, 7, 154; for carnation rust, 
15, 469; for gooseberry mildew, 
Z, 153; 8, 334, 16, 308, 313, 18, 
324, 327; for oat smut, 16, 296, 
300, 3802; for potato scab, 7, 
224; formula for use as fungi- 
cide, 15, 468; injurious effect 
on spraying pumps, 15, 487; 
soaking carnation cuttings in, 15, 
478; solution, 14, 386, 22, 333; 
spore germination in, 15, 472. 
Potato beetle, 14, 378; experiments on, 
4, 250; insecticides for, 6, 97, 
7, 228; test of spraying mixtures 
for, 15, 609; treatment of, 2, 
220. 
blight, 11, 696, 14, 376; caused by 
Phytophthora infestans, 24, 97; 
checked by spraying, 21, 87; 
early, notes, 15, 498; early, pre- 
vention by bordeaux mixture, 16, 
878; late, due to Phytophthora 
infestans, 22, 157, 158; late, pre- 
vention by bordeaux mixture, 16, 
377; nature of, 22, 157; pre- 
vention of, 10, 457, 11, 696, 15, 
28; remedies, 14, 377; resistant 
varieties, 24, 191; spraying with 
fungicides for, 10, 485. 
composition, influence of potash 
salts, 16, 611. 
crop condition in 1902, 21, 97. 
in New York, condition in 
1908, 22, 156. 
diseases, notes on, 15, 496. 
experiments with, 1, 55, 2, 117, 4, 
Be vad, 0, 16, 8, 223 9, 872, 
14, 26. 
fertilizer experiments, location, 25; 
13. 
flea beetle, 14, 378. 
experiments with, 14, 596. 
foliage, burning by arsenites, 24, 
198. 
effect of spraying, 21, 86. 
industry in Long Island, 16, 13. 
pinching terminal shots, 4, 238. 
plant, effect of shade on, 3, 77. 
Rhizoctonia on, 19, 110. 
rot, effect of spraying on, 25, 183; 
resistance of varieties, 4, 239. 
scab. and color of skin of tuber, 6, 
811; comparison of fungicides, 
11, 567; effect of fertilizers on, 
7, 224; effect of moisture, 6, 
308; experiments at Peruville, 
11, 561; experiments in treating, 
from scabby or smooth seed, 6, 
814; fungicides for, 6, 312; in- 
fected soil, 11, 561; influence of 
soil, 6, 308; manner of applying 
fungicides, 11, 564; nature of, 
11, 565, 15, 497; notes on, 6, 
344, 14, 377; plowing under 
green rye to prevent, 18, 18, 
418; preventive measures for, 
11, 563; preventives, test of, 7, 
224; relation of insects to, 7, 
226; seed soaked before planting, 
11, 568; soil and seed sprayed 
at planting time, 11, 568; study 
of, 6, 807; value of corrosive 
sublimate treatment, 16, 420. 
seed tuber, absorption in growth, 
4, 235, 5, 154, 7, 170. 
single eye for seed, 2, 218. 
skins, use for seed, 1, 69. 
sprayer, kind to use, 24, 189. 
spraying, 10, 487, 15, 28, 498, 16, 
376; as crop insurance, 22, 151; 
business experiments, 22, 133, 
24, 105, 25, 130; cost, 15, 503; 
directions for, 24, 193, 25, 186; 
experiments, 16, 879, 380, 390, 
21, 18, 77, 22, 26, 117, 119, 24, 
89; 92, °142,025) “17; °119;5 130, 
161; experiments, co-operative, 
22, 133; experiments, location, 
25, 13; experiments, volunteer, 
24, 143, 176, 25, 163; number 
of applications, 24, 187; prog- 
ress of, 24, 185. 
stem blight, 15, 509; not com- 
municated, 16, 18, 421. 
sprouts, use for seed, 1, 69. 
test of varieties, 1, 62, 71, 2, 211, 
3, 298, 4, 222, 228, 231, 5, 140, 
fe. 1585083) 82159 9) 22935) 1075483: 
troubles in New York in 1904, 24, 
183; in 1905, 25, 182. 
wild, notes on, 4, 244. 
Potatoes, advantages from spraying, 21, 
102. 
analyses of, 10, 40. 
blight proof variety, 24, 191. 
blighted, time to dig, 24, 192. 
butt vs. seed end eyes for seed, 2, 
123, 3; 68, 4, 62. 
causes of failure in spraying, 22, 
152. 
changing seed, 9, 3838. 
character and composition as af- 
fected by spraying, 24, 104. 
color of skin, relation to scab, 86, 
811. 
commercial fertilizers for, 14, 25, 
16, 596, 17, 37, 415, 19, 213. 
