A SNOWDROP DISEASE. 



45 



certain conditions become true parasites, and not unfrequently appear on 

 the same host-plant. 



Practical Measures. 

 To cure a diseased plant is an impossibility, as from the moment of 



Fia. 4. — BoTRYTis cixEREA, Peks. A Parasite on Snowdrops. 



