AILMENTS AND DISEASES 



through broken roots or abraded surfaces and rots the bulb. A white 

 mycelium forms upon which black sporangia stand erect on the short 

 hyphae. It is very destructive when once introduced. 



Sclerotina plorifera. The white pond-lily and kindred species are 

 subject to this fungus which forms orange-brown and yellow specks on 

 the stems, leaves and buds, which spreads and causes an unsightly appear- 

 ance. It also attacks the finer species of exotic and hybrid lilies and is 

 often communicated to other aquatic plants. 



Treatment. The affected plants should be submerged for half an 

 hour in a I or 2 percent, solution of salicylic acid and afterwards thoroughly 

 cleansed, and the affected spots painted with a 5 to lo percent, salicylic acid 

 solution. Badly diseased bulbs and plants should be at once destroyed by 

 burning and the others cleaned and repotted. 



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