Category: Culture

ANTIBIOTICS: As Growth Stimulants

Author is Robert M. [Bert] Hamilton (Compiler), posted almost 8 years ago Streptomycin, terramycin used experimentally on cattleyas resulted in disadvantages, and are not recommended; refer to A59-38+ Read More

BORDEAUX MIXTURE: Effectiveness

Author is Robert M. [Bert] Hamilton (Compiler), posted almost 8 years ago Is not very effective against bacterial leaf rot. A74-792 Read More

CARBON DIOXIDE: Air Fertilization Data

Author is Robert M. [Bert] Hamilton (Compiler), posted almost 8 years ago Experiments on non-orchid plants in Vermont; also on cattleyas in Tokyo; both with beneficial results; most effectively applied in the afternoon; use dry ice in coffee cans wrapped well in newspape... Read More

BOTTLE GROWING: Sophronitis Coccinea

Author is Robert M. [Bert] Hamilton (Compiler), posted almost 8 years ago Inside a quart bottle place crocks on bottom covered with 9 pts. osmunda and 1 pt. sphagnum moss with plant in the mix; hang near top of greenhouse, shaded from sun's strongest rays, with open top;... Read More

CHARCOAL: For Vandas

Author is Robert M. [Bert] Hamilton (Compiler), posted almost 8 years ago If entire mix is charcoal, supply all the trace elements; be sure to leach periodically. A78-1124 Read More

CACTUS: As Host Support for Orchids

Author is Robert M. [Bert] Hamilton (Compiler), posted almost 8 years ago On large Saguaro-type cactus in west Mexico have been found Encyclia adenocarpa and Barkeria lindeyana. OD76-175 Read More

COKE: As Potting Medium

Author is Robert M. [Bert] Hamilton (Compiler), posted almost 8 years ago In gravel culture type of situation, coke as the supporting medium has advantage in its porosity, holding more solution than gravel or quartz or granite, but no better than haydite. A65-244 Read More

CALCINATED CLAY: Pellets Used as Potting Medium

Author is Robert M. [Bert] Hamilton (Compiler), posted almost 8 years ago Leaching and drying will move salts to surface of pellets for their removal. A77-1101 Read More

COOL-GROWING CONDITIONS: Temperatures

Author is Robert M. [Bert] Hamilton (Compiler), posted almost 8 years ago General understanding is that night temperature should be between 50 and 60 deg.F. (13 to 15 Celsius); day temperatures, at midday, 75 to 80 deg.F. (24 to 27 Celsius). OD77-91; for dendrobiums and ... Read More

ANGRAECUMS: Minimum Optimums

Author is Robert M. [Bert] Hamilton (Compiler), posted almost 8 years ago 55 degrees F. at night; 50% relative humidity; 2,000 fcs. winter, 4,000 fcs. summer. AU71-135 Read More