INDEX 



Acer Pseudoplatanua, black 

 blotches, 65 



Acetylene, escape of, 31 



Acidity, soil, 24, 26, 28 



Actinomyces chromogenus, 93 



Aims of plants, 2 



Almond, gummy excretion, 65 



Ammoniacal copper carbon- 

 ate, 62 



Anemone coronaria, 92 ; sclero- 

 tia in roots of, 49, 66 ; 

 Piiccinia pruni on, 54, 66, 

 92 



Antirrhinum, spots on, 66 



Ants, 108, 112, 129, 137 



Aphides, 10, 26, 63, 67, 108, 113 



Apples, 66-69 ; bitter-pit in, 39 ; 

 "mummy," 50, 69; crown 

 gall, 66 ; canker, 50, 67 



Arabia, rust, 69 



Ascochyta clematidina, 76 ; 

 Piai, 88, 94 



Aspidistras, 114 



Asters, mildew, 70 ; China, 73 



Azalea indica, 70 



Bacillus amylovorus, 90 ; sola- 



nacearum, 94 ; tumefaciens, 



66 

 Bacteriiim, HyaciniM, 81 ; tirnie- 



faciens, 95 

 Barberry, Puccinia graminis on, 



54,71 

 Bark gnawed, 112 

 Beans, Broad, rust, 70 ; Dwarf 



and Runner, spot, 70 

 Beet, rust, 71 



Beetles, 108, 110, HI, 116, 

 126, 129, 136 ; mites, 141 



Bibio, 116 



Big-bud, 115 



Bipalium Jcewense, 141 



Birds, 103, 104, 110, 112, 136 



Biting insects, symptoms pro- 

 duced by, 110 



Bitter-pit, 39 



Black moulds, 26 



Bleeding, 38 



Blisters in foliage. 111 



Bordeaux mixture, 60 



Borings, 111 



Botrytis cinerea, 79, 84, 88, 90, 

 95, 99, 101 ; B. Paeoniae, 

 87 ; B. Oalanthina, 98 ; B. 

 parasitica, 100 



Breathing necessary to plants, 4 



Bremia Lactucae, 83 



Broomrape, 42 



Buds, destruction of, 111 



Burgundy mixture, 61 



Burning, 31 



Butterfly, cabbage, 118, 119, 

 124, 125 



Cabbage, 71, 72 ; root maggot, 



111 

 Calceolaria, wilting of, 73 

 OalUstephus hortensis, 73 

 Camellia, blotches on, 73 

 Camphor, 120 

 Canker, 50 



Carbon bisulphide, 130 

 Carnations, 73-74 ; rust, 62, 



73; smut, 60, 74; fly, HI 



149 



