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The euumeration of specific diseases is as Tollows : 



J. Hoot diseases, affecting absorption of food materials — 



Crown gall (cause uncertain). On fruit trees, small fruits, known 



to occur ; extent of injury not reported. 

 Root-rot (Fungi not identified). On fruit trees; troublesome in 



orchards, principally in southern part. 

 Club-root (MyxomyceteS; Plasmodiaphora Crassicae). On cab- 

 bages and other cruciferae. Distribution not known. Re- 

 ported from market gardening regions about larger cities. 



II. Stem diseases, affecting ascent of sap and transpiration — 



Fire-blight (Bacillus amylovorous). On apples, pears and quinces 

 in all parts of the State. "\'ery destructive and difficult to 

 control. 



Black-knot (Plowrightia morbosa). On plums and cherries. Com- 

 mon all ovei- State on plum trees. Cherries less injured by it. 



Black-rust (Puccinia graminis). On wheat, chiefly, but attacking 

 also other grains and grasses. Occurs everywhere. Extent of 

 injury in any particular season usually dependent upon 

 weather. 



Black-rot (Pseudomonas compestris). On cabbage, cauliflower and 

 related plants. Affects leaves also, and finally entire head. 

 Very destructive in some localities. 



III. Wood diseases, affecting absorption and transfer of water- 



Wilt (Bacillus tracheiphilus). On melons and cucumbers. A com- 

 mon and Injurious trouble affecting melons, especially in 

 southern countries. Few reports concerning cucumbers ; this 

 crop of much less importance. 



Blight (Bacillus salanacearum). On tomatoes. Few local reports 

 of this. May be due to other causes than bacteria. 



IV. Bark diseases, affecting transpiration chiefly — 



Canker (Spaerapsis malorum. Bacillus amylovorus, Glomerella 

 rufomaculaus). On apple trees. Cankers may be due to the 

 parasites mentioned or others. Occurrence of any except the 

 first mentioned has not been verified. 



Asparagus rust (Puccinia asparagi). On asparagus. Bad locally 



in northwestern portion of State. 



Authracuose (Gleosporium venetum). On blackberries and 

 raspberries. Often very destructi\'e. 



