FUNGI AFFECTING THE CURRANT AND 

 GOOSEBERRY 



The Leaf=spot Disease 



Septoria ribis and Cercospora angulata 



The foliage of currants and gooseberries is often 

 attacked early in summer by two or more species of 

 fungi, which produce small brownish spots, at first often 

 no larger than a pin head, but gradually increasing in 



size until a consid- 

 erable proportion of 

 the leaf surface is 

 affected. Some- 

 times several spots 

 may run together, 

 forming a large 

 blotch ; and these 

 blotches, as well as 

 the older spots, are 

 often of a dead gray 

 color. When the 

 leaves are badly 

 attacked they fall 

 prematurely, so that 

 the bushes may be- 

 come as bare in 



FIG. 45. SPOT DISEASE OF CURRANTS. AugUSt 3S they Or- 



dinarily are in December. Of course, the effect upon 

 the plants of such a loss of foliage is disastrous. If a 

 heavy crop is already hanging the plant may be unable 



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