Category: Oncidium Alliance

ODONTOGLOSSUMS: Watering

Author is Robert M. [Bert] Hamilton (Compiler), posted over 7 years ago Water heavily all year round; give them as much or more in winter. A76-427 Read More

MILTONIAS: Potting Mix Recommended

Author is Robert M. [Bert] Hamilton (Compiler), posted over 7 years ago Two parts chopped osmunda fiber; one part live sphagnum, a small amount of well-rotted cow manure added; water liberally when growing. A64-114 Read More

ODONTOGLOSSUMS: Hard-bulbed Types

Author is Robert M. [Bert] Hamilton (Compiler), posted over 7 years ago Most of them need a rest; the harder the bulb the longer the rest; they come from Mexico, Guatemala, Honduras; include O. bictoniense, citrosmum, cordatum, grande (Rossioglossum), JLaeve, pulchellu... Read More

ODONTOGLOSSUMS: Propagation by Backbulbs

Author is Robert M. [Bert] Hamilton (Compiler), posted over 7 years ago It is a difficult process; try severing the backbulbs, making one cut between them and the forward group about a year before the plant is actually divided. A57-788 Read More

ODONTOGLOSSUMS: Propagation by Pseudobulbs

Author is Robert M. [Bert] Hamilton (Compiler), posted over 7 years ago Use two or three as a unit to be successful; dust the cut with sulphur or a sealing compound; place in plastic bag with damp sphagnum until roots show. AU76-76 Read More

ODONTOGLOSSUMS: Repotting Time

Author is Robert M. [Bert] Hamilton (Compiler), posted over 7 years ago Contrary to the general rule and practice, the best time to repot is in September. OR75-44Do it only when new growth is three to six inches high, which is when the hew root system becomes active; t... Read More

ODONTOGLOSSUMS: Splitting Pseudobulbs

Author is Robert M. [Bert] Hamilton (Compiler), posted over 7 years ago When the outer layers of the bulb mature prematurely, cracks suddenly appear and clear, gummy fluid exudes; this can arise from excess of sunshine or/and a surfeit of potash. OR76-184 Read More

ONCIDIUM KRAMERIANUM: No New Leaves

Author is Robert M. [Bert] Hamilton (Compiler), posted over 7 years ago It is characteristic of this plant to bloom without interruption, given enough light and good care; to stimulate vegetative growths, cut off the flower spikes. A63-391; OD78-42 Read More

ONCIDIUM RINGSPOT: Virus

Author is Robert M. [Bert] Hamilton (Compiler), posted over 7 years ago The mature leaves show rounded, slightly sunken yellow areas on both surfaces of the leaf; the spots on one side do not correspond to those below; they age to a necrotic, purplish brown appearance;... Read More

MILTONIAS: Growths Turn Yellowish-green and Fall

Author is Robert M. [Bert] Hamilton (Compiler), posted over 7 years ago Perhaps over-watering or accumulating salts in the medium cause this to new growths; try applying water liberally to the dry plants, after 15 minutes repeat. A77-527 Read More