CONTENTS xi 



CHAPTER IX 



PAGE 



Basswood Diseases 101 



Powdery mildew 101 



Leaf-spot 102 



White sapwood-rot 103 



Southern root-rot 103 



CHAPTER X 



Beech Diseases 105 



Yellowish sapwood-rot 105 



Common white wood-rot 107 



Uniform white sapwood-rot 108 



White butt-rot 108 



Parasitized roots 108 



CHAPTER XI 



Birch Diseases Ill 



Leaf rust Ill 



Yellow leaf-bUster 112 



Red leaf-bhster 112 



Powdery sapwood-rot 113 



Yellowish sapwood-rot 115 



Common white wood-rot 115 



Brown heartwood-rot 116 



White butt-rot 117 



CHAPTER XII 



Buckeye Diseases 118 



Leaf-blotch 118 



Powdery mildew 121 



Curled leaf-blight and witches'-broom 121 



White sapwood-rot 122 



CHAPTER XIII 



Butternut Diseases 123 



Leaf-spot 123 



