Category: Orchid Doctor

SHAKING: Of Non-orchid Plants

Author is Robert M. [Bert] Hamilton (Compiler), posted almost 8 years ago It produces compact growth; chrysanthemums grew 20 to 30% shorter if the upper stem was moved for a few seconds daily or the whole plant was shaken; doing it twice a day produced even shorter plant... Read More

SHEARS: Two Kinds Available

Author is Robert M. [Bert] Hamilton (Compiler), posted almost 8 years ago One is the knife and anvil type which bruises one side of a cut stem, the other is the usual scissors type which injures fewer cells. F86-82 Read More

SHEATHS: Blind

Author is Robert M. [Bert] Hamilton (Compiler), posted almost 8 years ago On cattleyas are caused by insufficient light; hang them up close to the roof of the greenhouse. ODA72-134 Read More

SHEATHS: Browning

Author is Robert M. [Bert] Hamilton (Compiler), posted almost 8 years ago C. skinneri sheaths naturally turn brown; but as it occurs more often in winter, poor light and ventilation either too dry or too humid could cause it; also too much water during the rest period; o... Read More

SHEATHS: Bud

Author is Robert M. [Bert] Hamilton (Compiler), posted almost 8 years ago On cattleya browning and dying off of sheaths is not likely to be caused by ethylene which would require a high concentration to cause it; most common cause in not known; to save the flowers remove... Read More

SHEATHS: Buds Appear with No Sheath

Author is Robert M. [Bert] Hamilton (Compiler), posted almost 8 years ago On cattleyas this is not unusual; not a disease, but characteristic. A70-631 Read More

SHEATHS: Buds Die Inside

Author is Robert M. [Bert] Hamilton (Compiler), posted almost 8 years ago The cause may be dry rot or soft rot; after the yellowing, dryness will not affect normal development of buds; rotting and browning should be avoided by removal of the sheath; directions and illus.... Read More

SHEATHS: Cattleyas

Author is Robert M. [Bert] Hamilton (Compiler), posted almost 8 years ago Buds rotting inside can be caused by an accumulation of moisture in the sheath; caused by excessive watering, high humidity or rapid temperature change; do not overwater; cut off the tip. F77-16Do ... Read More

SHEATHS: Double

Author is Robert M. [Bert] Hamilton (Compiler), posted almost 8 years ago It is not uncommon for one sheath to form inside another on cattleyas; flowers develop properly; remove any yellow outer sheaths. A72-151; A76-1007; OD73-2On cattleyas; C.labiata or its hybrids nor... Read More

SHEATHS: Dry

Author is Robert M. [Bert] Hamilton (Compiler), posted almost 8 years ago It is a normal condition with Cattleya mossiae, and its hybrids and some other cattleyas. OD73-2 Read More

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