MOLD, SOOTY: Capnodium citri

Ailments Orchid Doctor

by Robert M. [Bert] Hamilton (Compiler)

Originally published in The Orchid Doctor in 1980 and 1988

Posted by Sys Admin over 8 years ago.

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Black, velvety membraneous coating; not parasitic on the plant; grown on honeydew secreted by insects; spray for insects with Malathion. B33; BU45

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Mold, Sooty Comments
MOLD, SOOTY: Appears on Leaves or Flowers It grows on exuded "honey", not on the tissue of the plant; fostered by high humidity; can be washed off, N319; S204 0
MOLD, SOOTY: Avoiding it Best way to avoid its buid-up is to hose down the flower spikes in the bud stage; Benlate as a botrytis prevention is also good. C71-223 0
MOLD, SOOTY: Best Fungicide for it Any common fungicide will control it; try Tersan, Captan or Ferbam; also called Sooty blotch. A67-517; AH30 0
MOLD, SOOTY: Control Covers sticky secretions of "honey" on leaves and flower sheaths, stems and blossoms; wipe off with absorbent cotton or tissue soaked in Captan at 1 ttpg.; it contributes to flower spotting. OD67-50; N319 0

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