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BLACK SHEATHS: Fungus Disease

Ailments Orchid Doctor

by Robert M. Hamilton (Compiler)

Originally published in The Orchid Doctor in 1980 and 1988

Posted by Sys Admin about 3 years ago.

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Occurs especially under humid conditions and when water stands at base of the sheaths; cut off sheath above buds and spray with Tersan, Zineb or Natriphene. N319; cut off just above buds. S203
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BLACK SHEATHS: Caused by Fungi Under Excessively Damp Conditions Prevent spread to buds within by cutting off tops of sheaths to let in air; spray with Physan or Tersan. A73-815 0

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