388 



The Spraying of Plants. 



Chester, F. D., mentioned, 128 ; on grape 



diseases, 10T ; pear diseases, 109, 110 ; 



quoted, 137, 140, 141. 

 Chloride of calcium and alum, 44 ; copper, 



141 ; iron, 101, 151 ; mercury wash, 



160; sodium, 169. 

 Chlorophyll, 229. 

 Chrysalis, 228. 

 Chrysanthemum, disease, 275, 276; leaf 



spot, 275 ; new leaf spot, 276. 

 Chrysobothrisfemorata, 248. 

 Cigar-case-bearer, apple, 251, 252 ; pear, 



251, 835. 

 Cladosporium carpophilum, 327 ; den- 



driticum, experiments on, 22; ful- 



imm, 370 ; sp. 820. 

 Clay, 8, 9. 



Climax nozzle, 201 ; potato sprayer, 194. 

 Cline, G. W., mentioned, 112. 

 Olisiocampa Americana :, 77, 258. 

 Clock pumps, 217. 

 Cloque, 47. 



Club-foot, cabbage, 266. 

 Coal oil, 152 ; tar, 136. 

 Cobbett, W., quoted, 10. 

 Coccotorus scutellaris, 344. 

 Coccus, 7. 



Cochylis roserana, destruction of, 52. 

 Codlin-moth and London purple, 63, 68 ; 



Paris green, 64 ; apple, 252, 255 ; first 



treated by experimentation, 65; with 



Paris green, 63 ; pear, 252, 335. 

 Cold water, 179. 



Coleophora Fletcher ella, 251, 252. 

 Coleosporium Sonchi-arvensis, 260. 

 Colletotrichwn Spinacem, 363. 

 Colorado potato beetle, 351. 

 Colsa oil, 52. 

 Combination of arsenites and kerosene 



emulsion, 155. 

 Combinations, 148 ; of insecticides and 



fungicides, 186; of insecticides and 



fungicides, suggested, 105. 

 Combined cistern and force-pump, 191 ; 

 Composition of Forsyth, 6. 

 Oonotrachelus nenuphar, 275, 343. 

 Cook, A. J., mentioned, 67, 68 ; on kero- 

 sene emulsion, 81 ; quoted, 62, 63, 64, 



184, 283, 235, 251. 

 Cook's hard soap emulsion, 154 : soft 



soap emulsion, 154. 

 Copper, absorbed by foliage, 234, 235; 



acetate, 137 ; aceto arsenite, 121 ; action 



on foliage, 234 ; plants, 235 ; soil, 286; 

 amount in soil, 236; carbonate, 137; 

 ammoniacal solution, 138 ; and ammo- 

 nium carbonate, 141 ; dextrine, 44 ; 

 chemistry of, 137 ; early use upon 

 grapes, 27 ; in ammonia, introduction 

 into America, 101 ; precipitated, sug- 

 gested, 36; recommended, 46; chlo- 

 ride, 141 ; compounds and sugar, 173 ; 

 hydrate and ammonia, 36; sulphur, 

 44 ; perforation of, 44 ; recommended, 

 46 ; hydro carbonate, 44 ; in food, 235 ; 

 mixture of Gironde, 125; nitrate, in 

 soil, 287 ; phosphate, 44 ; early use 

 upon grapes, 27 ; soda mixture, see 

 copper carbonate, 141 ; sodium hypo- 

 sulphite, 141 ; sulphate, action on 

 foliage, 46; spores, 22, 235; ammo- 

 niated, 117 ; and ammonium carbon- 

 ate, 151 ; sulphate, 85 ; carbonate of 

 soda, 36; lime mixture, 125; Paris 

 green, 105; sodium carbonate, 44; 

 sulphuric acid, 143 ; wheat smut, 318 ; 

 anhydrous, 143 ; as a fungicide, 142 ; 

 dissolved in ammonia, 30 ; early use 

 of, 17, 22, 27 ; in Australia, 57 ; Eng- 

 land, 55; soil, 237; on foliage, 34; 

 preparation of, 142 ; salt and lime 

 wash, 162 ; test for purity, 142 ; tested, 

 41; value of, on posts, etc., 24; sul- 

 phide, early use upon grapes, 27; 

 sulphocyanide, 44 ; sulphosaccharate, 

 42, 173. 



Copperas, 151, see also Iron sulphate. 



Coquillett, D. W., work of, 85, 87. 



Corn, affected by copper salts, 235, 237 ; 

 enemies and diseases, 276, 277 ; insect 

 enemies, 277 ; root-worm, southern, 

 283 ; smut, 276. 



Cornell mixture, 143. 



Corrosive sublimate, 9 ; use of, 160. 



Cotton blight, 10 ; caterpillar, 277 ; ene- 

 mies and diseases, 277, 278 ; leaf-worm, 

 277 ; worm, 277, 286; Paris green for, 

 61. 



Cottonwood, leaf-beetle, 278 ; rust, 278. 



Craig, quoted, 112, 114. 



Cranberry, blackhead, 280 ; enemies and 

 diseases, 279-281 ; fire-worm, 280 ; 

 fruit-worm, 280 ; gall fungus, 279 ; red 

 rust, 279 ; rot, 279 ; scald, 279 ; vine- 

 worm, 280 ; worm, 280. 



Craw, quoted, 149-151. 



