QUILLING: New Leaves Stay Rolled and Upright

Ailments Orchid Doctor

by Robert M. [Bert] Hamilton (Compiler)

Originally published in The Orchid Doctor in 1980 and 1988

Posted by Sys Admin almost 8 years ago.

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Appears on vigorous dendrobiums, both evergreen type and D.phalaenopsis type; may be due to low humidity; the leaves do not look right but they function well. A79-1022
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Quilling Comments
QUILLING: Of Leaves of Dendrobiums D.phalaenopsis hybrids show lack of unfolding of the leaves; low humidity is thought to be a cause; leaves may be bound by dry, hard nectar; cause not really known; syringing may be beneficial. A80-4 0
QUILLING: What it Is New leaves stay rolled and upright and do not unfold naturally, also applied to petals of flowers which develop a length-wiseeinward roll; seems that a wetting agent in an insecticide spray if applied when the raceme has buds out of sheath will cause it. AU87(3)-46 0

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