6oo 



DISEASES OF CULTIVATED PLANTS 



Potato collar fungus, 389. 

 corky scab of, 528. 



disease, 123. 



dry scab of, 478. 



influence of Bordeaux mixture 



on yield of, 571. 

 leaf blotch, 499. 



spot, 488. 



curl, 501. 



scab, American, 458. 



French, 418. 



tubers, 544. 



internal disease of, 568. 



winter rot of, 180. 



Potatoes, 236, 266, 409, 421. 



sweet, 135, 188. 



Potentilla, 424. 

 Primula vera, 413. 

 Prunus, 146, 178. 



avium, 201, 203. 



japonica, gummosis of, 471. 



Pseudopeziza medicaginis, 278. 

 Pseudotsuga douglasii, 254, 263. 

 Pteris cretica, 558. 



droogmantiana, 558. 



Pyrus communis, 206. 

 malus, 206. 



QUERCUS NIGRA, 320. 



tinctoria, 320. 



Quince, 392, 441, 452. 



RADISHES, 116, 510. 

 Ragwort, 331. 

 Ranunculus repens, 280. 

 Rape, 510. 

 Raspberry, 313, 434. 



root rot, 361. 



rust, 313. 



spot, 434. 



Red spruce disease, 385. 

 Rhamnus, 306. 

 Rhododendron, 451. 



ferrugineum, 400. 



galls, 400. 



hirsutum, 334, 400. 



indicum, 403. 



leaf spot, 435. 



rust, 334. 



wilsonianum, 400. 



Rhubarb leaf cluster-cups, 299. 

 Ribes nigrum, 300. 

 Rice, 347. 

 Robinia, 127, 382. 

 Rose, 114. 



canker, 41 c. 



leaf blotch^ 428. 



mildew, 150. 



Rose rust, 312. 



tree root disease, 288. 



wild, 312. 



Rubus chamaeomorus, 434. 



idaeus, 434. 



Rumex, 299. 



Ruppia rostellata, 533. 



Rye, 301, 347, 361, 493. 



grain fungus, 274. 



smut, 347. 

 Rye-grass, 21. 



SAFFRON, 236. 

 Sainfoin leaf-spot, 477. 

 Saintpaulia, 560. 

 Salix repens, 326. 

 Salvia, 113. 



Sanguisorba officinalis, 315. 

 Saponaria, 432. 

 Satyrium coriifolium, 336. 

 Saxifraga longifolia, 312. 

 Saxifrage, 312. 



rust, 312. 



Scabios, 118. 

 Scabiosa arvensis, 112. 

 Scarlet-runner pod scab, 441. 

 Scilla, 264. 



bifolia, 342, 349. 



smut, 342. 



Scots fir, 320, 321, 362. 

 Screw-pine disease, 433. 

 Scrophularia, 117. 

 Sedges, 274. 

 Segging of oats, 555. 

 Sempervivum, 127. 

 Senecio, 160, 331, 334. 

 Sequoia gigantea, 263. 

 Service berry, 540. 



tree, 540. 



Sesamum leaf blotch, 521. 



orientale, 521. 



Sherardia, 113, 280. 

 Sida napaea, 413. 

 Sidalcea, 253. 

 Silene inflata, 344. 

 Silver fir, 327, 377, 451. 



canker, 244. 



Jeaf disease, 221. 



witch'es' brooms of, 327. 

 Simlacina, 89. 

 Sisal hemp disease, 444. 

 Sium, 122. 

 Sneezewort, 286. 

 Snowdrop mildew, 262. 

 Solanum, 42. 



melongena, 188. 



Sophora japonica, 363. 

 Sorbus, 206. 



