508 



INDEX 



350, Ribis 155, rubego-vera 359, 

 Sorghi 341, Tragopogonis 286, 

 triticina 367, Violse 471. 



Pumpkin 285. 



downy mildew 285, powdery 

 mildew 285. 



Pustular spot 134. 



Pycnidia 17, 489. 



Pythiacystis citrophthora 184. 



Pythium 61. 



De Baryanum 236. 



Quack grass 



smut 396, urocystose 396. 



Quince 



Bacillus amylovorus 112, black 

 rot 112, blight 112, European 

 canker 115, Fabrsea maculata 

 112, fruit spot 112, Glomerella 

 rufomaculans 1J5, Gymnospo- 

 rangium clavipes 110, hypoch- 

 nose 115, knot 111, leaf blight 

 112, Nectria cinnabarina 115, 

 Nectria ditissima 115, pale rot 

 115, Phoma Cydonise 115, ripe 

 rot 115, rust 110, Sphseropsis 

 malorum 112. 



Radish 285. 



club root 285, damping off 285, 

 white rust 285. 



Ramularia 



areola 403, Armoracise 241, 

 Primulse 472. 



Ramulariose 



horse-radish 241, primrose 472. 



Raspberry 



anthracnose 175, cane blight 

 177, Coniothyrium Fuckelii 177, 

 crown gall 177, Gloeosporium 

 venetum 175, gymnoconiose 177, 

 leaf spot 177, rust 177, Pseudo- 

 monas tumefaciens 177, septo- 

 riose 177, Sphserella rubina 180, 

 sphserellose 180, yellows 180. 



Ray blight 463. 



Red heart rot 416. 



Red leaf blight 405. 



Red rot 425. 



cedar 436, pine 447. 



Red top 



anthracnose 397, black stem 

 rust 396, smut 397. 



Resistant 



pears 104, varieties 23. 



Rhizoctonia 61, 204, 240, 244, 305, 

 314, 405, 461, 464. 

 Beta; 207, Medicaginis 380. 



Rhizoctoniose 61. 



alfalfa 380, aster 453, beet 207, 

 carnation 461, catalpa 433, cot- 

 ton 405, pea 259, tobacco 305, 

 violet 481. 



Rhizopus nigricans 279, 289. 



Rhododendron 



Synchytrium Vaccinii 150. 



Rhytisma 



acerinum 443, punctatum 443. 



Rhytismose 

 maple 443. 



Rice 352. 



black smut 355, blast 352, 

 damping off 356, green smut 354, 

 pip 357 j rotten neck 352, rust 357, 

 speck 357, spotted blight 357. 



Ripe rot 



apple 69, grape 174, guava 191, 

 pear 107, quince 115. 



Root knot 67. 



Root rot 426, 427. 



alfalfa 380, apple 98, beet 207, 

 210, currant 155, gooseberry 

 160, grape 172, 173, plum 144, 

 tobacco 296. 



Root rots 424. 



Rose 



anthracnose 476, black spot 473, 

 cercosporose 476, crown gall 

 476, downy mildew 476, gloe- 

 osporium 476, leaf spot 476, 

 powdery rnildew 19, rust 475, 

 476, sphserellose 476. 



