MULBERRY-DWARF TROUBLES IN JAPAN. J I 3 



several years from cutting, most of them can be made to re- 

 cuperate. 



Many experiments have been made to prove this fact. Thus 

 we see : — 



Result. 



• 



Variety. 



Date of 

 cutting. 



Number 

 01 



cutting. 



Number of 

 plants used 

 for experi- 

 ments. 



Became 

 partly 



diseased. 



TV 



Diseased. 



Remained 

 healthy. 



Death. 



Nezumi- 



July 5. 















caveshi 



1 



10 



4 



I 



5 



— 



Jumonji 





I 



5 



1 



1 



3 



— 



Obata 





I 



5 



1 



2 



2 







Hikojiro 





1 



5 



1 



1 



3 



— 



Tsuruta 



„ 



1 



5 



1 



3 



1 



— 



Takowase 





I 



5 



— 



4 



1 



- 



Hosoye 



August 19. 



1 



5° 



6 



9 



23 



12 





Late autumn \ 

















(once cut be- 1 







5 



10 









fore budding j 



2 



25 



10 







in spring.) 

















»» 



2 



«S 



5 



4 



5 



I 



.» 



August 26. 



I 



30 



3 



l 3 



6 



8 



Yotsume 



28. 



1 



3° 



4 



6 



16 



4 



Hosoye 



26. 



1 



>5 



4 



6 



3 



2 





23. 



1 



IS 





12 



3 





Total 







215 



35 



72 



81 



27 



Ratio 







100 



16 



34 



38 



12 



The disease did not appear in the control (not cut) 

 plants. A similar result has been reported by Mr. Ichikawa. 

 Though he does not mention the age of the experimented plants, 

 yet I do not doubt that they were moderately old ; young plants 

 do not show, in my opinion, such a remarkable effect. 



We have also made a similar experiment in 1898 with the 

 variety Nezumigayeshi, eight years old :— 



