174 
Rooks 101, 118, 148 
Root flies 140 
knot 170 
maggot 140 
Rose chafer 113 
mildew 55 
Rotation of crops 15 
Rusts 64-72 
Saproph 2 
Seotine OB, 164 
Sclerotinia 62-64 
Sclerotium 56 
Sheep maggot 156 
nasal fly 155 
Sitones 125, 126 
Smuts 73-84 
Spiracles 86 
Spore-cases 51 
Spraying 26-30 
Starlings 101, 118, 148 
Sterilization 11, 12, 33 
Suckers 13 
Surface caterpillars 98 
Synchytrium 44-47 
Teleutospore 67 
Thorax 85 
Tilletia 81-84 
Tipula 145-148 
Toads 101 
Trachea 86 
Tulip-rooted oats 166 
Turnip club 35, 122 
finger and toe 35 
flea beetle 107 
Index 
Turnip fly 107 
gall weevil 122 
moth 98 
root maggot 140 
surface caterpillars 98 
Tylenchus 166, 169, 170 
Uredineae 64 
Uredospore 65 
Uromyces 1, 72 
Ustilago 73-81 
Warbles 149 
Ward’s Tube 57 
Wart disease of potatoes 4447 
Wasps 90, 148 
Weevils 119 
Wheat bulb fly 140 
bunt 81 
ear cockles 169 
ergot 61 
frit fly on 127 
gout fly on 134 
Hessian fly on 138 
Little Joss 71, 72 
midge 149 
mildew 47 
rust 64 
smut 73 
White grubs 113 
Winter moth 94 
Wireworm 103 
Woolly aphis 163 
Wound parasites 16 
Zoospore 21 
CAMBRIDGE: PRINTED BY J. B. PEACE, M.A. AT THE UNIVERSITY PRESS 
