CONTENTS. 



Page. 



Introduction 7 



Description and behavior of apple blotch 9 



Fruit blotches 9 



Twig cankers 10 



Leaf spots 11 



Infection periods 12 



Susceptibility of varieties 12 



Cause of the disease 13 



Life history of the fungus 13 



Cultural characters 15 



Inoculation experiments 1(5 



Preventive measures 17 



Spraying experiments at Benton vi He, Ark 17 



Spraying experiments at Gravette, Ark 19 



Strength of Bordeaux mixture for apple blotch 20 



Recommendations for the control of apple blotch 21 



Combination treatment for apple blotch and other diseases 22 



Description of plates 26 



Index 27 



144 5 



