Category: Orchid Doctor

FLOWER SPIKES: Breaking Off Without Cause

Author is Robert M. [Bert] Hamilton (Compiler), posted almost 8 years ago In equitant oncidiums it can be caused by heat or water stress. A86-586 Read More

FLOWER SPIKES: Cutting Them Off Early

Author is Robert M. [Bert] Hamilton (Compiler), posted almost 8 years ago After a reasonable period (unstated) the spikes should be cut as a contributing factor in long term successful cultivation; as for Oncidium concolor, which otherwise has a relatively short greenhos... Read More

FLOWER SPIKES: Cutting Them Off to Improve Plants

Author is Robert M. [Bert] Hamilton (Compiler), posted almost 8 years ago Many exhibition growers let their champion flower class plants flower each second year only and remove the spikes in off years. AU84-283 Read More

FLOWER SPIKES: Numerous, But They Abort

Author is Robert M. [Bert] Hamilton (Compiler), posted almost 8 years ago On bulbous epidendrums they appear in promising numbers but then dry up, if they do not get sufficient light or have been deprived of sufficient rest of several weeks duration after maturing their ... Read More

FLOWER SPIKES: Pendant

Author is Robert M. [Bert] Hamilton (Compiler), posted almost 8 years ago Where the spikes are natiirally pendant, the plants are best grown on mounts, such as Epidendrum faleaturn, Dendrobium parishii% Scuticaria steelii. F86-129 Read More

FLOWER SPIKES: Shrivel in the Middle

Author is Robert M. [Bert] Hamilton (Compiler), posted almost 8 years ago Oncidiums show this collapse which is possibly caused by heat stress and water stress combined; a rapidly developing spike if overheated even momentarily will have its cells collapse; water stress ... Read More

FLOWER SPIKES: Tall Ones Shrivel and Fall Over

Author is Robert M. [Bert] Hamilton (Compiler), posted almost 8 years ago Heavily pigmented doritaenopsis spikes may be absorbing too much heat and burning because they are so sensitive. A85-1323 Read More

FLOWER SPOTS: Or Moisture Spots

Author is Robert M. [Bert] Hamilton (Compiler), posted almost 8 years ago They can be prevented on cymbidiums by applying more heat or ventilation. OA87-162 Read More

FLOWERING TIMES: Characteristics of Species

Author is Robert M. [Bert] Hamilton (Compiler), posted almost 8 years ago In their natural habitat they peak a month or two earlier than in the greenhouse in the north; for lists of S.E.Asian, Philippine, and Malayan, plants refer to W11-171 Read More

ACID OR ALKALINE: Changing the Values

Author is Robert M. [Bert] Hamilton (Compiler), posted almost 8 years ago Various means can be used: tufa, a limestone form, can be added to paphiopedilums from limestone cliffs; bark composts acidify with age; peatmoss, pine needles, oak leaves in the mix produce acidit... Read More