138 



PAGE 



Cabbages, insect enemies of... 107, 



116, 122 



Cabbage Root Fly 166 



Cacti 23 



California, beneficial insects in ... 132 



Car abidae 131 



Callus 30, 53 



Carbolic Acid, remedy for Eel- 

 worms 100 



Carbolic Acid, for sterilisation of 



hives 134 



Carbolic Acid and Lime, remedy 



for Onion Fly 118 



Carbon Bisulphide, remedy for 



Leather Jackets 114 . 



Carbon Bisulphide, remedy for 

 Root Form 9f Woolly Aphis ... 124 



Carbon nutrition 20 



Carnation, layering of 30 



Carnivorous Slug 130 



Carpocapsa pomonella 109 



Cauliflowers, insect enemies of ... 116 



Celery Fly 115 



Cells, diseased by fingers-an^-toes 67 



Celosia cristate 50 



Cercospora melonis 85 



Chaffinch 98, 99 



C ' heimatobia brumata 103 



Cherry, insect enemies of 108 



Cherry, pruning of 35 



Chilopoda 130 



Chortophila brassicae 116 



Chrysalis 105 



Cladosporium fulvum on tomato 83 



Clay soils 10 



Click beetles 112 



Climbers 18 



Club Root precautions and re- 

 medies 69 



Coal Tit 129 



Coccinella septem-punctata 132 



Codling Moth 109 



Coleoptera 112, 131, 132 



Conidia of cercospora melonis 85 



Conidia of Phytophthora, 74 



Contact, sensitiveness to 6 



Copper sulphate 84 



Corm 29 



Crab apple, use for pollination ... 39 



Crane flies 113 



Crested varieties 49 



Crocus : 29 



Cross pollination, effect of 37 



Cruciferae Club Root disease 65, 66 



Cuckoo 129 



"Cuckoo Spit', insects 126 



Cucumbers attacked by Eelworms 100 

 Cucumber, disease resistant varie- 

 ties 86, 87 



Cucumber, leaf disease 84, 85 



Currant Aphides 122, 123, 125 



Currants, insect enemies of ... 108, 



110, 122, 123, 127 



Currant Moth 108 



Currants, pruning of 36 



Currant Scale Insects 127 



Cut-leaved varieties 45 



Cuttings 30 31 



"Daddy Long Legs" 113 



Dahlias attacked by Earwigs 107 



"Damping off" disease 43, 61 



"Damping off" methods of pre- 

 vention 64 



"Damping off" symptoms 61 



Damson Aphides 122 



Darwin, Charles 37, 44 



Darwin quoted 130 



Desert plants 24 



Destruction of diseased plants 69, 



80, 88 



De Vries' mutation theory 45 



Diaspis pentagona , 133 



Diplopoda 130 



Diplosis pyrivora 114 



Diptera 115, 132 



Discs, felt-paper for Cabbage Root 



Fly 117 



Disease resistance 79, 86, 87 



Disease resistant varieties of cu- 

 cumber 86, 87 



Diseases caused by fungi 57 



Diseases of Bees 134 



Diseases of Silkworms 135 



Diseases of Man caused by Insects 



113, 119, 120 



Dominant characters 46 



Double flowers 51 



Double-fruited orange 52 



Drainage of soil 7, 70 



"Dysentery" in Bees 134 



Earthworms 130 



Earwig 105 



Eelworms 99 



Elateridae 112 



Elm Aphis 121 



Environment, effect of 24 



Epidemics of late blight origin ... 78 



Eriophyes ribis 103 



Eriophyidae 103 



Erysiphaceae 87 



Ether vapour for forcing 36 



Evening primrose 45 



Eye of potato 27 



" False Wireworms " 

 Farmyard manure ... 

 Fasciation 



131 

 11 

 49 



