Category: Orchid Doctor

FLOWERS: Almost Constant Bloom, Will it Deplete a Miltonia?

Author is Robert M. [Bert] Hamilton (Compiler), posted almost 8 years ago Not if fed well and the light is right. A79-370 Read More

FLOWERS: Available in the Summer Months

Author is Robert M. [Bert] Hamilton (Compiler), posted almost 8 years ago Among the many possibilities are hybrids of Cattleya dowiana, C. bicolor, C. guttata, evergreen cane-type dendrobiums including hybrids. F80-125 Read More

FLOWERS: Best Time to Cut for the Sake of the Plant

Author is Robert M. [Bert] Hamilton (Compiler), posted almost 8 years ago There is little advantage gained by cutting early, or at any particular time, except for pollinated flowers which take vitality from the plant. A79-272 Read More

FLOWERS: Black Dots or Rotten Blotches Appear One Week After Opening

Author is Robert M. [Bert] Hamilton (Compiler), posted almost 8 years ago Caused by fungus; clean the greenhouse very carefully; fungus lives on dead plant material; spray everything with Benlate 1 ttpg.; provide air circulation; keep foliage dry at night. A72-1003 Read More

FLOWERS: Color in Cattleyas and Cymbidiums

Author is Robert M. [Bert] Hamilton (Compiler), posted almost 8 years ago Is it affected by light?; color varies with the parentage of the plants; some cymbidiums are not affected by full sunlight; try different degrees of shade on green flowers. A70-55 Read More

FLOWERS: Cupping

Author is Robert M. [Bert] Hamilton (Compiler), posted almost 8 years ago When they do not spread open as much as expected or desired, the cause may be mites, or lack of humidity; so set the plants over a tray of water and mist them lightly every day; an inexpensive humi... Read More

FLOWERS: Cutting Off with Hot Knife

Author is Robert M. [Bert] Hamilton (Compiler), posted almost 8 years ago As a preventive to spreading virus a soldering tool with a small blade bolted to the hot element keeps hot enough to cut and eliminate virus adhering to it; refer to A70-417 Read More

FLOWERS: Cutting Time

Author is Robert M. [Bert] Hamilton (Compiler), posted almost 8 years ago In cattleyas, like many others the flowers are not mature until three or four days after opening and the color becomes full; also, place cut flowers in the refrigerator for five hours to harden the... Read More

FLOWERS: Deformity

Author is Robert M. [Bert] Hamilton (Compiler), posted almost 8 years ago Check the potassium (K) level of the fertilizer, especially if it is a seaweed extract dilution; or the use of a mixture containing auxins, cytokinins or giberellins. AU84-204 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