Newly Posted Articles

BLISTERS: On Phalaenopsis Flowers

Author is Robert M. [Bert] Hamilton (Compiler), posted almost 8 years ago If round, and look water-soaked, they are probably botrytis fungus; keep humidity lower at night; use a fan; water early in the morning. A72-412 Read More

CYMBIDIUMS: Deformed Buds and Flowers

Author is Robert M. [Bert] Hamilton (Compiler), posted almost 8 years ago Occasionally this is caused by low night temperatures followed by exposure to strong early morning sunlight. AH43 Read More

OSMOCOTE: A Slow Release Fertilizer

Author is Robert M. [Bert] Hamilton (Compiler), posted almost 8 years ago Found satisfactory in commercial use only with such heavy-feeders as cymbidiums. A87-1285 Read More

ORCHIDS EVER AFTER: A Form of Conservation

Author is Robert M. [Bert] Hamilton (Compiler), posted almost 8 years ago Mount a sign in every greenhouse stating they need expert care and in case of death get in touch with the secretary of the Orchid Society of Great Britain. OR86-17 Read More

HEATING: Costs and How to Reduce Them

Author is Robert M. [Bert] Hamilton (Compiler), posted almost 8 years ago Adopt partial underground construction of greenhouses, lots of insulation, a southern exposure, double glazing with plastic film, airtightness, the installation of passive heat storers (steel drums... Read More

PHALAENOPSIS: Bacterial Disease

Author is Robert M. [Bert] Hamilton (Compiler), posted almost 8 years ago Erwinia cyprepedii is the probable cause; the recommended treatment for it, Natriphene, failed; try cultural practice as outlined fully; spray with Tersan 75 at 1 tpg, three times spaced fortnightl... Read More

BUSH SNAILS: Behavior and Control

Author is Robert M. [Bert] Hamilton (Compiler), posted almost 8 years ago Snails go deeper as the pot dries out; most effective surface spray is with metaldehyde but spray is not as effective as soaking; spray first with water,wait two or three hours then apply; most eff... Read More

CARBON DIOXIDE: To Accelerate Plant Growth

Author is Robert M. [Bert] Hamilton (Compiler), posted almost 8 years ago Orchid tests carried out in Victoria, Australia with generator resulted in 25% additional growth, with spiking six weeks earlier. OD70-214 Read More

CHARCOAL CHIPS: As Potting Medium

Author is Robert M. [Bert] Hamilton (Compiler), posted almost 8 years ago In Hawaii, all vandaceous orchids grown in straight charcoal chips; fewer problems encountered from bacterial and fungal pests, A76-227 Read More

HEATING CABLES: Use for

Author is Robert M. [Bert] Hamilton (Compiler), posted almost 8 years ago Try growing mature Doritaenopsis and Phalaenopsis in the greenhouse on one for better performance; it should be linked to a thermostat control. OIE85Jy-15; RMH Read More