THE BOOK OF THE PEONY 



Symptoms. — The disease shows first in the 

 early summer as dark reddish bordered spots with 

 almost white centres. Later the centres become 

 a bit sunken and show minute black pimples 

 funder the dead epideraiis, presumably the begin- 

 nings of the fungous fruit bodies. During the 

 latter part of the summer the spotting of the 

 stems becomes very severe and the leaves are often 

 severely affected with what appears to be the 

 same disease. 



Cause. — This anthracnose is quite certainly a 

 fungous disease, but up to the present I have not 

 been able to discover mature fruit bodies of a 

 fungus in the lesions and have not had the time to 

 imdertake a careful investigation of the malady. 



Control. — Probably sanitary measures, in- 

 volving removal and burning of diseased tops 

 early in the Autumn, would be effective in getting 

 rid of the pathogen which probably winters in 

 the diseased stems and leaves. 

 The Leaf Blotch. 



This disease appears to be one of the best 

 and longest known diseases of peonies. It was 

 first described from Europe, where it is to be ob- 

 served in almost every peony planting to-day. 



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