UNITED STATES DEPARTMENT OF AGRICULTURE 



Bureau of Plant Industry 



Washington, January 19, 1910 



Pathological 

 collections 



Mycological exchange. 

 Inspection work. 



Mr. David Fairchild, 



Agricultural Explorer, 



In charge of Seed and Plant Introduction. 



Dear Mr. Fairchild: 



The inspection of the large consignment of Japanese cherry trees pre- 

 sented by the Japanese Government has been completed. 



Crown gall is present on 45% of the trees and the girdling of five trees 

 apparently has resulted from the attack of a Pestalozzia sp. Crown gall is 

 already widely distributed in this country and its importation in this case 

 may not be of any considerable economic importance. It is impossible to 

 decide with the limited time available for research if the Pestalozzia is of 

 an indigenous species. 



Fungous mycelium was pretty generally present on the roots — it 

 appeared to be due to conditions of packing rather than a true root dis- 

 ease. Cultural experiments were started to substantiate this belief. 



Yours very truly, 



FLORA PATTERSON 



Mycologist in Charge. 

 O.K., 

 A=A.V. 





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