Category: Orchid Doctor

FRAGRANCES: Various

Author is Robert M. [Bert] Hamilton (Compiler), posted almost 8 years ago For names of African plants and others noted for their perfume, with names of plants and identification of their flower smells, refer to 0R84-291 Read More

FREEZING: Counteractions to Take

Author is Robert M. [Bert] Hamilton (Compiler), posted almost 8 years ago If the temperature falls to lower than 20 degrees F., cymbidiums will not recover so attemps to revive them are hopeless. A85-726 Read More

FREEZING: Cymbidiums

Author is Robert M. [Bert] Hamilton (Compiler), posted almost 8 years ago Remove tops of frozen leaves and return to good culture; give less fertilizer depending on amount of leaf loss. A75-298 Read More

FREEZING: Damage to Different Genera

Author is Robert M. [Bert] Hamilton (Compiler), posted almost 8 years ago At 28 deg.F. leaf burn occurred to odontoglossum hybrids, including odontiodas; completely uninjured were widely-grown species hybrids (27 named) and paphiopedilums (15 named) and cymbidiums. A63-15 Read More

FREEZING: Damaged Plants

Author is Robert M. [Bert] Hamilton (Compiler), posted almost 8 years ago Below freezing weather in southern California caused losses of epidendrums and cymbidium spikes; refer to OIE87Jan-2Nurse them along by watering them sparingly, do not fertilize for a while and giv... Read More

FREEZING: Of Popular Genera

Author is Robert M. [Bert] Hamilton (Compiler), posted almost 8 years ago If plant is not completely frozen it may recover; may take three to five years to flower again. A62-399 Read More

FREEZING: Protection with Sheets

Author is Robert M. [Bert] Hamilton (Compiler), posted almost 8 years ago Plants outdoors in Florida can be covered overnight with cloth; if plastic is used keep it above the leaf tissue and remove it before the sun hits it in the morning or plants will be damaged or kil... Read More

FREEZING: Tolerated by Plants

Author is Robert M. [Bert] Hamilton (Compiler), posted almost 8 years ago Cymbidium spikes can go down to about 27 deg.F.; Mexican laelias, some of them can go to middle and low 20's; reed-stem epidendrums can stand about 29deg.F. A74-1042 Read More

FUMIGANTS, SMOKE: Most Effective

Author is Robert M. [Bert] Hamilton (Compiler), posted almost 8 years ago Vapona (DDVP) is, but a permit to use it is necessary; Dithio smokes ("bombs" or cans) are dangerous to humans; Diazinon and Cygon 2E are safe and effective sprays. A77-995 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