4 
Colorado Experiment Station 
CONTENTS— Continued 
Page 
PEAR— 
Fire Blight 67 
PINE— 
White-pine Blister-riist 67 
PLUM— 
Plum Pocket 69 
POPLAR— 
Canker 69 
POTATO— 
Fusarium Blight 70 
Blackleg 70 
Dry Stem-rot 71 
Scab 71 
Potato Wart 71 
Early Blight 74 
Tip-burn 74 
RASPBERRY— 
Anthracnose 76 
Spur-blight 76 
Leaf-spot 76 
STRAWBERRY— 
Leaf-spot 77 
TOMATO— 
Blight 78 
Blossom-end Rot 78 
Page 
PART III — Plant Disease Control. 79 
General Principles of Control... 79 
Exclusion 79 
Eradication 80 
Protection 81 
Use of Disease-resistant Plants 83 
Preparation and Application of 
Sprays and other Fungicides 84 
Bordeaux Mixture 84 
Stock Solutions of Bordeaux 
Mixture 86 
Bordeaux Mixture and Resin- 
fish-oil Soap 86 
Self-boiled Lime-sulfur 86 
Commercial Lime-sulfur 87 
Ammoniacal Copper Carbonate 87 
Flowers of Sulfur 87 
Formaldehyde 87 
Corrosive Sublimate 90 
Hot Water Treatment for Con- 
trol of Loose Smuts of 
Wheat and Barley . 90 
Salting Method for Removing 
Ergot Bodies from Rye.... 91 
References — 
Bulletins on Plant Diseases.... 92 
Appendix 94 
Index 9'5 
