Castor bean, 59. 
Cercospora apii, 34. 
Cercospora disease of the cucumber, 92. 
Cercospora melonis, 92, 176, 192. 
Chamberland filter, 148. 
Chapman, 147, 151. 
Chlamydospores, 54, 59. 
Cheshunt Compound, 61, 69, 70, 83, 90, 
114, 188. 
Chlordinitrobenzene, 169. 
Chlorophyll, 18. 
Chlorosis, 52. 
relation of lime to, 49. 
in waterlogged soils, 40. 
Chrysanthemum : 
leaf blight of, 108. 
leaf spot of, 109. 
powdery mildew of, 109. 
rust of, 107. 
Citrullus vulgaris, 193. 
Cineraria, 59. 
Cladosporium cucumerinum, 
126. 
Cladosporium fulvum, 14, 100. 
effect of slope of houses on, 14. 
Coleus, 21. 
Colletotrichum leaf spot of cucumber, 96, 
97. 
cleansing houses after, 96. 
conditions favourable to, 98. 
sources of infection, 95. 
spraying against, 96. 
Colletotrichum oligochetum, 62, 95, 117. 
carried by straw manure, 30. 
hibernation of, 95. 
Colletotrichum tabificum, 70. 
Complete sterilization, 155. 
Congested areas, 17. 
Conidia, 59. 
Coniothyrium fuckelii, 91. 
Coniothyrium rosarium, 91. 
Copper sulphate, 61, 90. 
Corticium vagum, 58. 
Cotton, 84. 
Cow manure, 50. 
Cresols, 169. 
Crown canker of the rose, 66. 
Cucumber, 84. 
angular leaf spot of, 126. 
Alternaria leaf spot of, 99. 
bacterial wilt disease of, 122. 
Butcher’s disease resister, 92, 145, 
192. 
Cercospora leaf spot of, 92. 
Cladosporium leaf spot of, 99. 
Colletotrichum leaf spot or anthrac- 
nose of, 94. 
control of angular leaf spot of, 127. 
* Foot rot ”’ of, 124. 
downy mildew of, 99. 
fusarium wilt of, 86. 
98, 117, 
INDEX 
203 
Cueumber—conid. 
mosaic disease of, 142. 
powdery mildew of, 99. 
Verticillium wilt of, 82. 
Cucumber fruits, gammosis of, 117. 
Cucumber mildew, 34. 
Cuoumber seedlings, “damping off,” 
of, 62. 
Cucumber wilt, 23. 
Cucumbers, spring physiological wilt 
of, 33. 
Cylindrocladium scoparium, 6T. 
Cylindrosporium chrysanthemi, 108. 
Daffodil : 
** yellow stripe ”’ disease of, 53. 
** Damping off,’ 17, 29. 
** Damping off ’’ of cucumber seedlings, 
62. 
** Damping off” of tomato seedlings: 
control of, 60. 
effect of lime on, 48. 
effect of temperature on, 62. 
effect of thick sowing on, 56. 
effect of shade on, 34. 
organisms causing, 58. 
relation of contaminated water 
supply to, 60. 
relation to process of watering, 26. 
sources of infection, 60. 
symptoms, 56. 
Daphnes, 69. 
De Bary, 34. 
Deep sterilization with hot water, 165. 
Depressions in ground, 14. 
Diabrotica vittata, 123. 
D. duodecimpunctata, 123. 
Dichlorocresol, 169. 
Dickson, 149, 151. 
Diplocladium, 73. 
Diplodina lycopersici, 89, 117. 
Disease : 
effect of atmosphere humidity on, 39. 
effect of light on, 33. 
effect of manurial treatment on, 47. 
effect of temperature on, 35. 
Disposal of diseased tissue, 28. 
Doidge Miss, 135. 
Doolittle, 149. 
Drainage, 14. 
contaminated by disease, 16. 
effect on tomato crop, 15. 
Dropping of flower buds, 51. 
Dropsy, 42, 43. 
of the geranium, 42. 
of the tomato, 42. 
Dusting, 175, 188. 
Edgerton, 37, 192. 
Effect of shade on early blight of the 
celery, 34. 
