Category: Orchid Doctor

ACID-LOVING PLANTS: Acid Fertilizers

Author is Robert M. [Bert] Hamilton (Compiler), posted over 4 years ago Orchids benefit from Miracid (30-10-10); considered an excellent formulation. A77-43 Read More

ACTIDIONE: Fungus Control

Author is Robert M. [Bert] Hamilton (Compiler), posted over 4 years ago An antibiotic, with a fungicidal spectrum; systemic in action; recommended for damping-off of cymbidium seedlings. OD65-14 Read More

AERANGIS SPECIES: Bud Blast, Drying-up of Spikes and Clubbing of Roots

Author is Robert M. [Bert] Hamilton (Compiler), posted over 4 years ago Hypothetical suggestions: bud drop can be induced by a growth check followed by good conditions; growth check might be dryness, or too wet, or too strong light in early morning followed by cool to ... Read More

AGAR, LIQUID: With Glasswool Substrate

Author is Robert M. [Bert] Hamilton (Compiler), posted over 4 years ago Produced superior growth of paphiopedilum seedlings over solidified agar. A76-12+ Read More

AGE: Expectations of Plants

Author is Robert M. [Bert] Hamilton (Compiler), posted over 4 years ago Given proper culture, a sympodial orchid should live indefinitely. A81-27 Read More

AGE: Of Individual Plants

Author is Robert M. [Bert] Hamilton (Compiler), posted over 4 years ago In 1968 the Botanical Gardens of Copenhagen had a living plant of Oncidium sphacelatum which was collected in Mexico in 1841. A61-980; A68-405 Still in cultivation are various divisions of Paphi... Read More

AGGREGATES, LIGHTWEIGHT: As Potting Media

Author is Robert M. [Bert] Hamilton (Compiler), posted over 4 years ago Made from clay or pulverized fuel ash or fired shale; cheap, clean, hold water, do not float, or rot, can be reused or mixed with sphagnum,etc.; Taclite, Lytag, Leca, etc.; refer to OR76-160 Read More

AIR CONDITIONERS: For Cooling Greenhouses

Author is Robert M. [Bert] Hamilton (Compiler), posted over 4 years ago They are too dessicating for the purpose and are therefore inferior to a normal, evaporative cooler. A87-616 Read More

AIR MOVEMENT: Excessive

Author is Robert M. [Bert] Hamilton (Compiler), posted over 4 years ago Too much air turbulence for the frequency of watering indoors can cause retardation of plant growth, so don't overdo it. A86-363;382 Read More

ACID OR ALKALINE: Changing the Values

Author is Robert M. [Bert] Hamilton (Compiler), posted over 4 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

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